set+of+positions

SUBJECT AREA: Land transport, Railways and locomotives

[br]

[br]

[br]

In the mid-1850s Saxby was a foreman in the Brighton Works of the London Brighton \& South Coast Railway, where he had no doubt become familiar with construction of semaphore signals of the type invented by C.H. Gregory; the London-Brighton line was one of the first over which these were installed. In the 1850s points and signals were usually worked independently, and it was to eliminate the risk of accident from conflicting points and signal positions that Saxby in 1856 patented an arrangement by which related points and signals would be operated simultaneously by a single lever.

Others were concerned with the same problem. In 1855 Vignier, an employee of the Western Railway of France, had made an interlocking apparatus for junctions, and in 1859 Austin Chambers, who worked for the North London Railway, installed at Kentish Town Junction an interlocking lever frame in which a movement that depended upon another could not even commence until the earlier one was completed. He patented it early in 1860; Saxby patented his own version of such an apparatus later the same year. In 1863 Saxby left the London Brighton \& South Coast Railway to enter into a partnership with J.S.Farmer and established Saxby \& Farmer's railway signalling works at Kilburn, London. The firm manufactured, installed and maintained signalling equipment for many prominent railway companies. Its interlocking frames made possible installation of complex track layouts at increasingly busy London termini possible.

In 1867 Saxby \& Farmer purchased Chambers's patent of 1860, Later developments by the firm included effective interlocking actuated by lifting a lever's catch handle, rather than by the lever itself (1871), and an improved locking frame known as the "gridiron" (1874). This was eventually superseded by tappet interlocking, which had been invented by James Deakin of the rival firm Stevens \& Co. in 1870 but for which patent protection had been lost through non-renewal.

Saxby \& Farmer's equipment was also much used on the European continent, in India and in the USA, to which it introduced interlocking. A second manufacturing works was set up in 1878 at Creil (Oise), France, and when the partnership terminated in 1888 Saxby moved to Creil and managed the works himself until he retired to Sussex in 1900.

[br]

SUBJECT AREA: Architecture and building

[br]

[br]

[br]

Between 1777 and 1780 Soane studied in Italy on a Travelling Scholarship, working in Rome but also making extensive excursions further south to Paestum and Sicily to study the early and more severely simple Greek temples there.

His architectural career began in earnest with his appointment as Surveyor to the Bank of England in 1788. He held this post until 1833 and during this time developed his highly individual style, which was based upon a wide range of classical sources extending from early Greek to Byzantine themes. His own work became progressively more linear and austere, his domes and arches shallower and more segmental. During the 1790s and early 1800s Soane redesigned several halls in the Bank, notably the Bank Stock Office, which in 1791 necessitated technological experimentation.

The redesigning was required because of security problems which limited window openings to high-level positions and a need for fireproof construction because the site was so restricted. Soane solved the difficulties by introducing light through lunettes set high in the walls and through a Roman-style oculus in the centrally placed shallow dome. He utilized hollow terracotta pots as a lightweight material in the segmental vaulting.

Sadly, the majority of Soane's work in the Bank interior was lost in the rebuilding during the 1930s, but Soane went on to develop his architectural style in his houses and churches as well as in a quantity of public buildings in Whitehall and Westminster.

[br]

Maori jumping jacks game

Karetao were manipulated in much the same way as puppets and were used to help tell stories. Songs accompanied each set of actions. The karetao is held in an upright position with one hand at its base and the other holding the cord. By alternately pulling and slackening the cord, the arms assume different positions. At the same time, by shaking the karetao at the base, the arms are made to quiver and imitate a person doing a haka.

εἰμί (Hom.+) impv. ἴσθι, ἔσο IPol 4:1, ἔστω—also colloq. ἤτω (BGU 276, 24; 419, 13; POxy 533, 9; Ps 103:31; 1 Macc 10:31) 1 Cor 16:22; Js 5:12; 1 Cl 48:5; Hv 3, 3, 4;—3 pers. pl. ἔστωσαν (ins since 200 B.C. Meisterhans³-Schw. 191; PPetr III, 2, 22 [237 B.C.]) Lk 12:35; 1 Ti 3:12; GJs 7:2. Inf. εἶναι. Impf. 1 pers. only mid. ἤμην (Jos., Bell. 1, 389; 631; s. further below); ἦν only Ac 20:18 D, 2 pers. ἦσθα (Jos., Ant. 6, 104) Mt 26:69; Mk 14:67 and ἦς (Lobeck, Phryn. 149 ‘say ἦσθα’; Jos., Ant. 17, 110 al.; Sb 6262, 16 [III A.D.]) Mt 25:21, 23 al., 3 sg. ἦν, 1 pl. ἦμεν. Beside this the mid. form ἤμην (pap since III B.C.; Job 29:16; Tob 12:13 BA), s. above, gives the pl. ἤμεθα (pap since III B.C.; Bar 1:19) Mt 23:30; Ac 27:37; Eph 2:3. Both forms in succession Gal. 4:3. Fut. ἔσομαι, ptc. ἐσόμενος. The mss. vary in choice of act. or mid., but like the edd. lean toward the mid. (W-S. §14, 1; Mlt-H. 201–3; Rob. index; B-D-F §98; Rdm.² 99; 101f; Helbing 108f; Reinhold 86f). Also s. ἔνι.

① be, exist, be on hand a pred. use (for other pred. use s. 3a, 4, 5, 6, 7): of God (Epicurus in Diog. L. 10, 123 θεοί εἰσιν; Zaleucus in Diod S 12, 20, 2 θεοὺς εἶναι; Wsd 12:13; Just., D. 128, 4 angels) ἔστιν ὁ θεός God exists Hb 11:6; cp. 1 Cor 8:5. ὁ ὢν καὶ ὁ ἦν the one who is and who was (cp. SibOr 3, 16; as amulet PMich 155, 3 [II A.D.] ὁ ὢν θεὸς ὁ Ἰάω κύριος παντοκράτωρ=the god … who exists.) Rv 11:17; 16:5. ὁ ὢν καὶ ὁ ἦν καὶ ὁ ἐρχόμενος, in this and the two preceding passages ἦν is treated as a ptc. (for the unusual use of ἦν cp. Simonides 74 D.: ἦν ἑκατὸν φιάλαι) 1:4; 4:8 (cp. Ex 3:14; Wsd 13:1; Paus. 10, 12, 10 Ζεὺς ἦν, Ζ. ἔστι, Ζ. ἔσσεται; cp. Theosophien 18. S. OWeinreich, ARW 19, 1919, 178f). οὐδʼ εἶναι θεὸν παντοκράτορα AcPlCor 1:11. ἐγώ εἰμι (ins in the Athena-Isis temple of Saïs in Plut., Is. et Os. 9, 354c: ἐγώ εἰμι πᾶν τὸ γεγονὸς κ. ὸ̓ν κ. ἐσόμενον. On the role of Isis in Gk. rel. s. IBergman, Ich bin Isis ’68; RMerkelbach, Isis Regina—Zeus Sarapis ’95; for further lit. s. MGustafson in: Prayer fr. Alexander to Constantine, ed. MKiley et al. ’97, 158.) Rv 1:8 (s. ἐγώ beg.). ὁ ὤν, … θεός Ro 9:5 is classed here and taken to mean Christ by JWordsworth ad loc. and HWarner, JTS 48, ’47, 203f. Of the λόγος: ἐν ἀρχῇ ἦν ὁ λ. J 1:1 (for ἦν cp. Herm. Wr. 1, 4; 3, 1b ἦν σκότος, Fgm. IX 1 p. 422, 23 Sc. γέγονεν ἡ ὕλη καὶ ἦν).—Of Christ πρὶν Ἀβραὰμ γενέσθαι, ἐγὼ εἰμί before Abraham was born, I am 8:58 (on the pres. εἰμί cp. Parmenides 8, 5: of the Eternal we cannot say ἦν οὐδʼ ἔσται, only ἔστιν; Ammonius Hermiae [Comm. in Aristotl. IV 5 ed. ABusse 1897] 6 p. 172: in Timaeus we read that we must not say of the gods τὸ ἦν ἢ τὸ ἔσται μεταβολῆς τινος ὄντα σημαντικά, μόνον δὲ τὸ ἔστι=‘was’ or ‘will be’, suggesting change, but only ‘is’; Ps 89:2; DBall, ‘I Am’ in John’s Gospel [JSNT Suppl. 124] ’96).—Of the world πρὸ τοῦ τὸν κόσμον εἶναι before the world existed 17:5. Satirically, of the beast, who parodies the Lamb, ἦν καὶ οὐκ ἔστιν Rv 17:8. Of God’s temple: ἔστιν B 16:6f it exists. τὸ μὴ ὄν that which does not exist, the unreal (Sallust. 17 p. 32, 7 and 9; Philo, Aet. M. 5; 82) Hm 1:1. τὰ ὄντα that which exists contrasted w. τὰ μὴ ὄντα Ro 4:17; cp. 1 Cor 1:28; 2 Cl 1:8. Of God κτίσας ἐκ τοῦ μὴ ὄντος τὰ ὄντα what is out of what is not Hv 1, 1, 6 (on the contrast τὰ ὄντα and τὰ μὴ ὄντα cp. Ps.-Arist. on Xenophanes: Fgm. 21, 28; Artem. 1, 51 p. 49, 19 τὰ μὴ ὄντα ὡς ὄντα; Ocellus Luc. 12; Sallust. 17, 5 p. 30, 28–32, 12; Philo, Op. M. 81; PGM 4, 3077f ποιήσαντα τὰ πάντα ἐξ ὧν οὐκ ὄντων εἰς τὸ εἶναι; 13, 272f τὸν ἐκ μὴ ὄντων εἶναι ποιήσαντα καὶ ἐξ ὄντων μὴ εἶναι; Theoph. Ant. 1, 4 [p. 64, 21] τὰ πάντα ὁ θεὸς ἐποίησεν ἐξ οὐκ ὄντων εἰς τὸ εἶναι).—Of existing in the sense be present, available, provided πολλοῦ ὄχλου ὄντος since a large crowd was present Mk 8:1. ὄντων τῶν προσφερόντων those are provided who offer Hb 8:4. οὔπω ἦν πνεῦμα the Spirit had not yet come J 7:39. ἀκούσας ὄντα σιτία when he heard that grain was available Ac 7:12.—Freq. used to introduce parables and stories (once) there was: ἄνθρωπός τις ἦν πλούσιος there was (once) a rich man Lk 16:1, 19. ἦν ἄνθρωπος ἐκ τ. Φαρισαίων there was a man among the Pharisees J 3:1.—There is, there are ὥσπερ εἰσὶν θεοὶ πολλοί as there are many gods 1 Cor 8:5. διαιρέσεις χαρισμάτων εἰσίν there are various kinds of spiritual gifts 12:4ff; 1J 5:16 al. Neg. οὐκ ἔστι there is (are) not, no (Ps 52:2; Simplicius in Epict. p. 95, 42 as a quot. from ‘tragedy’ οὐκ εἰσὶν θεοί) δίκαιος there is no righteous man Ro 3:10 (Eccl 7:20). ἀνάστασις νεκρῶν οὐκ ἔστιν there is no resurr. of the dead 1 Cor 15:12; οὐδʼ εἶναι ἀνάστασιν AcPlCor 1:12; 2:24; cp. Mt 22:23; Ac 23:8 (cp. 2 Macc 7:14). εἰσὶν οἵ, or οἵτινες there are people who (Hom. et al.; LXX; Just., D. 47, 2 εἰ μήτι εἰσὶν οἱ λέγοντες ὅτι etc.—W. sing. and pl. combined: Arrian, Ind. 24, 9 ἔστι δὲ οἳ διέφυγον=but there are some who escaped) Mt 16:28; 19:12; Mk 9:1; Lk 9:27; J 6:64; Ac 11:20. Neg. οὐδείς ἐστιν ὅς there is no one who Mk 9:39; 10:29; Lk 1:61; 18:29. As a question τίς ἐστιν ὅς; who is there that? Mt 12:11—In an unusual (perh. bureaucratic terminology) participial construction Ac 13:1 ἡ οὖσα ἐκκλησία the congregation there (cp. Ps.-Pla., Eryx. 6, 394c οἱ ὄντες ἄνθρωποι=the people with whom he has to deal; PLond III 1168, 5 p. 136 [18 A.D.] ἐπὶ ταῖς οὔσαις γειτνίαις=on the adjoining areas there; PGen 49; PSI 229, 11 τοῦ ὄντος μηνός of the current month); cp. 14:13.—αἱ οὖσαι (sc. ἐξουσίαι) those that exist Ro 13:1 (cp. UPZ 180a I, 4 [113 B.C.] ἐφʼ ἱερέων καὶ ἱερειῶν τῶν ὄντων καὶ οὐσῶν).

② to be in close connection (with), is, freq. in statements of identity or equation, as a copula, the equative function, uniting subject and predicate. On absence of the copula, Mlt-Turner 294–310.

ⓐ gener. πραΰς εἰμι I am gentle Mt 11:29. ἐγώ εἰμι Γαβριήλ Lk 1:19. σὺ εἶ ὁ υἱὸς τοῦ θεοῦ Mk 3:11; J 1:49 and very oft. ἵνα … ὁ πονηρὸς … ἐλεγχθῇ [το? s. app. in Bodm.] μὴ ὢν θεός AcPlCor 2:15 (Just., D. 3, 3 φιλολόγος οὖν τις εἶ σύ).—The pred. can be supplied fr. the context: καὶ ἐσμέν and we are (really God’s children) 1J 3:1 (Eur., Ion 309 τ. θεοῦ καλοῦμαι δοῦλος εἰμί τε. Dio Chrys. 14 [31], 58 θεοφιλεῖς οἱ χρηστοὶ λέγονται καὶ εἰσίν; Epict. 2, 16, 44 Ἡρακλῆς ἐπιστεύθη Διὸς υἱὸς εἶναι καὶ ἦν.—The ptc. ὤν, οὖσα, ὄν used w. a noun or adj.and serving as an if-, since-, or although-clause sim. functions as a copula πονηροὶ ὄντες Mt 7:11; 12:34.—Lk 20:36; J 3:4; 4:9; Ac 16:21; Ro 5:10; 1 Cor 8:7; Gal 2:3 al.).—W. adv. of quality: οὕτως εἶναι be so preceded by ὥσπερ, καθώς or followed by ὡς, ὥσπερ Mt 13:40; 24:27, 37, 39; Mk 4:26; Lk 17:26. W. dat. of pers. οὕτως ἔσται ὁ υἱὸς τ. ἀ. τῇ γενεᾷ ταύτῃ so the Human One (Son of Man) will be for this generation 11:30. εἰμὶ ὡσ/ὥσπερ I am like Mt 6:5; Lk 18:11. W. dat. ἔστω σοι ὥσπερ τελώνης he shall be to you as a tax-collector Mt 18:17. εἰμὶ ὥς τις I am like someone of outward and inward similarity 28:3; Lk 6:40; 11:44; 22:27 al. καθώς εἰμι as I am Ac 22:3; 1J 3:2, 7; 4:17.—W. demonstr. pron. (Just., A I, 16, 1 ἃ ἔφη, ταῦτά ἐστι: foll. by a quotation; sim. 48, 5 ἔστι δὲ ταῦτα; and oft.) τὰ ὀνόματά ἐστιν ταῦτα Mt 10:2. αὕτη ἐστὶν ἡ μαρτυρία J 1:19. W. inf. foll. θρησκεία αὕτη ἐστίν, ἐπισκέπτεσθαι Js 1:27. W. ὅτι foll. αὕτη ἐστὶν ἡ κρίσις, ὅτι τὸ φῶς ἐλήλυθεν J 3:19; cp. 21:24; 1J 1:5; 3:11; 5:11. W. ἵνα foll. τοῦτό ἐστιν τὸ ἔργον, ἵνα πιστεύητε J 6:29; cp. vs. 39f; 15:12; 17:3; 1J 3:11, 23; 5:3. W. τηλικοῦτος: τὰ πλοῖα, τηλικαῦτα ὄντα though they are so large Js 3:4. W. τοσοῦτος: τοσοῦτων ὄντων although there were so many J 21:11. W. τοιοῦτος: τοιοῦτος ὤν Phlm 9 (cp. Just., A I, 18, 4 ὅσα ἄλλα τοιαῦτά ἐστι).—W. interrog. pron. ὑμεῖς τίνα με λέγετε εἶναι; who do you say I am? Mt 16:15; cp. 21:10; Mk 1:24; 4:41; 8:27, 29; Lk 4:34 al.; σὺ τίς εἶ; J 1:19; 8:25; 21:12 al. (cp. JosAs 14:6 τίς εἶ συ tell me ‘who you are’). σὺ τίς εἶ ὁ κρίνων; (Pla., Gorg. 452b; Strabo 6, 2, 4 σὺ τίς εἶ ὁ τὸν Ὅμηρον ψέγων ὡς μυθογράφον;) Ro 14:4; ἐγὼ τίς ἤμην; (cp. Ex 3:11) Ac 11:17; τίς εἰμι ἐγὼ ὅτι who am I, that GJs 12:2 (Ex 3:11). W. πόσος: πόσος χρόνος ἐστίν; how long a time? Mk 9:21. W. ποταπός of what sort Lk 1:29.—W. relative pron. οἷος 2 Cor 10:11; ὁποῖος Ac 26:29; 1 Cor 3:13; Gal 2:6; ὅς Rv 1:19; ὅστις Gal 5:10, 19.—W. numerals ἦσαν οἱ φαγόντες πεντακισχίλιοι ἄνδρες 6:44 (cp. Polyaenus 7, 25 ἦσαν οἱ πεσόντες ἀνδρῶν μυριάδες δέκα); cp. Ac 19:7; 23:13. Λάζαρος εἷς ἦν ἐκ τῶν ἀνακειμένων L. was one of those at the table J 12:2; cp. Gal 3:20; Js 2:19. τῶν πιστευσάντων ἦν καρδία καὶ ψυχὴ μία Ac 4:32. εἷς εἶναι be one and the same Gal 3:28. ἓν εἶναι be one J 10:30; 17:11, 21ff; 1 Cor 3:8.—οὐδʼ εἶναι τὴν πλάσιν τὴν τῶν ἀνθρώπων τοῦ θεοῦ (that) the creation of humankind is not God’s doing AcPlCor 1:13.—To establish identity the formula ἐγώ εἰμι is oft. used in the gospels (corresp. to Hebr. אֲנִי הוּא Dt 32:39; Is 43:10), in such a way that the predicate must be understood fr. the context: Mt 14:27; Mk 6:50; 13:6; 14:62; Lk 22:70; J 4:26; 6:20; 8:24, 28; 13:19; 18:5f and oft.; s. on ἐγώ.—In a question μήτι ἐγώ εἰμι; surely it is not I? Mt 26:22, 25.

ⓑ to describe a special connection betw. the subject and a predicate noun ἡμεῖς ναὸς θεοῦ ἐσμεν ζῶντος we are a temple of the living God 2 Cor 6:16. ἡ ἐπιστολὴ ὑμεῖς ἐστε you are our letter (of recommendation) 3:2. σφραγίς μου τῆς ἀποστολῆς ὑμεῖς ἐστε you are the seal of my apostleship 1 Cor 9:2 and oft.

ⓒ in explanations:

α. to show how someth. is to be understood is a representation of, is the equivalent of; εἰμί here, too, serves as copula; we usually translate mean, so in the formula τοῦτʼ ἔστιν this or that means, that is to say (Epict., Ench. 33, 10; Arrian, Tact. 29, 3; SIG 880, 50; PFlor 157, 4; PSI 298, 9; PMert 91, 9; Jos., C. Ap. 2, 16; ApcMos 19; Just., D. 56, 23; 78, 3 al.) Mk 7:2; Ac 19:4; Ro 7:18; 9:8; 10:6, 8; Phlm 12; Hb 7:5 al.; in the sense that is (when translated) (Polyaenus 8, 14, 1 Μάξιμος ἀνηγορεύθη• τοῦτο δʼ ἄν εἴη Μέγιστον) Mt 27:46; Ac 1:19. So also w. relative pron.: ὅ ἐστιν Mk 3:17; 7:11, 34; Hb 7:2. After verbs of asking, recognizing, knowing and not knowing (Antiphanes Com. 231, 1f τὸ ζῆν τί ἐστι;) μάθετε τί ἐστιν learn what (this) means Mt 9:13. εἰ ἐγνώκειτε τί ἐστιν 12:7; cp. Mk 1:27; 9:10; Lk 20:17; J 16:17f; Eph 4:9. W. an indir. question (Stephan. Byz. s.v. Ἀγύλλα: τὶς ἠρώτα τί ἂν εἴη τὸ ὄνομα) τί ἂν εἴη ταῦτα Lk 15:26; τί εἴη τοῦτο 18:36. τίνα θέλει ταῦτα εἶναι what this means Ac 17:20; cp. 2:12, where the question is not about the mng. of terms but the significance of what is happening.—Esp. in interpr. of the parables (Artem. 1, 51 p. 48, 26 ἄρουρα οὐδὲν ἄλλο ἐστὶν ἢ γυνή=field means nothing else than woman) ὁ ἀγρός ἐστιν ὁ κόσμος the field means the world Mt 13:38; cp. vss. 19f, 22f; Mk 4:15f, 18, 20; Lk 8:11ff (cp. Gen 41:26f; Ezk 37:11; Ath. 22, 4 [Stoic interpr. of myths]). On τοῦτό ἐστιν τὸ σῶμά μου Mt 26:26; Mk 14:22; Lk 22:19 and its various interpretations, see lit. s.v. εὐχαριστία. Cp. Hipponax (VI B.C.) 45 Diehl αὕτη γάρ ἐστι συμφορή=this means misfortune.

β. to be of relative significance, be of moment or importance, amount to someth. w. indef. pron. εἰδωλόθυτόν τί ἐστιν meat offered to idols means anything 1 Cor 10:19. Esp. εἰμί τι I mean someth. of pers. 1 Cor 3:7; Gal 2:6; 6:3; and of things vs. 15. εἰμί τις Ac 5:36.—Of no account ἐμοὶ εἰς ἐλάχιστόν ἐστιν (telescoped fr. ἐλάχ. ἐστιν and εἰς ἐλάχ. γίνεται, of which there are many exx. in Schmid, I 398; II 161, 237; III 281; IV 455) it is of little or no importance to me 1 Cor 4:3.

③ be in reference to location, persons, condition, or time, be

ⓐ of various relations or positions involving a place or thing: w. ἀπό: εἶναι ἀπό τινος be or come from a certain place (X., An. 2, 4, 13) J 1:44.—W. ἐν: ἐν τοῖς τ. πατρός μου in my father’s house Lk 2:49 (cp. Jos., Ant. 16, 302 καταγωγὴ ἐν τοῖς Ἀντιπάτρου). ἐν τῇ ὁδῷ on the way Mk 10:32. ἐν τῇ ἐρήμῳ Mt 24:26. ἐν ἀγρῷ Lk 15:25. ἐν δεξιᾷ τ. θεοῦ at God’s right hand Ro 8:34; in heaven Eph 6:9.—W. εἰς: τὴν κοίτην Lk 11:7; τὸν κόλπον J1:18.—W. ἐπὶ w. gen. be on someth. of place, roof Lk 17:31; head J 20:7 (cp. 1 Macc 1:59); also fig., of one who is over someone (1 Macc 10:69; Jdth 14:13 ὁ ὢν ἐπὶ πάντων τῶν αὐτοῦ) Ro 9:5 (of the angel of death Mel., P. 20, 142 ἐπὶ τῶν πρωτοτόκων); also ἐπάνω τινός J 3:31.—W. dat. be at someth. the door Mt 24:33; Mk 13:29.—W. acc. be on someone: grace Lk 2:40; Ac 4:33; spirit (Is 61:1) Lk 2:25; εἶναι ἐπὶ τὸ αὐτό be in the same place, together (Gen 29:2 v.l.) Ac 1:15; 2:1, 44; 1 Cor 7:5.—W. κατά w. acc. εἶναι κατὰ τὴν Ἰουδαίαν be in Judea Ac 11:1; εἶναι ἐν Ἀντιοχείᾳ κατὰ τὴν οὖσαν ἐκκλησίαν were at Antioch in the congregation there 13:1.—W. ὑπό w. acc. τι or τινα of place be under someth. J 1:48; 1 Cor 10:1.—W. παρά w. acc. παρὰ τὴν θάλασσαν by the sea- (i.e. lake-) shore Mk 5:21; Ac 10:6.—W. πρός τι be close to, facing someth. Mk 4:1.—W. adv. of place ἐγγύς τινι near someth. Ac 9:38; 27:8. μακρὰν (ἀπό) Mk 12:34; J 21:8; Eph 2:13; also πόρρω Lk 14:32. χωρίς τινος without someth. Hb 12:8. ἐνθάδε Ac 16:28. ἔσω J 20:26. ἀπέναντί τινος Ro 3:18 (Ps 35:2). ἐκτός τινος 1 Cor 6:18; ἀντίπερά τινος Lk 8:26; ὁμοῦ J 21:2; οὗ Mt 2:9; ὅπου Mk 2:4; 5:40. ὧδε Mt 17:4; Mk 9:5; Lk 9:33. Also w. fut. mng. (ESchwartz, GGN 1908, 161 n.; on the fut. use of the pres. cp. POxy 531, 22 [II A.D.] ἔστι δὲ τοῦ Τῦβι μηνὸς σοὶ ὸ̔ θέλεις) ὅπου εἰμί J 7:34, 36; 12:26; 14:3; 17:24. As pred., to denote a relatively long stay at a place, stay, reside ἴσθι ἐκεῖ stay there Mt 2:13, cp. vs. 15; ἐπʼ ἐρήμοις τόποις in lonely places Mk 1:45; ἦν παρὰ τὴν θάλασσαν he stayed by the lakeside 5:21.

ⓑ involving humans or transcendent beings: w. adv. ἔμπροσθέν τινος Lk 14:2. ἔναντί τινος Ac 8:21; ἐνώπιόν τινος Lk 14:10; Ac 4:19; 1 Pt 3:4; Rv 7:15; ἐντός τινος Lk 17:21; ἐγγύς τινος J 11:18; 19:20; Ro 10:8 (Dt 30:14).—W. prep. ἐν τινί equiv. to ἔκ τινος εἶναι be among Mt 27:56; cp. Mk 15:40; Ro 1:6. Of God, who is among his people 1 Cor 14:25 (Is 45:14; Jer 14:9); of the Spirit J 14:17. Of persons under Christ’s direction: ἐν θεῷ 1J 2:5; 5:20 (s. Norden, Agn. Th. 23, 1). ἔν τινι rest upon, arise from someth. (Aristot., Pol. 7, 1, 3 [1323b, 1] ἐν ἀρετῇ; Sir 9:16) Ac 4:12; 1 Cor 2:5; Eph 5:18.—εἴς τινα be directed, inclined toward Ac 23:30; 2 Cor 7:15; 1 Pt 1:21.—κατά w. gen. be against someone (Sir 6:12) Mt 12:30; Mk 9:40 and Lk 9:50 (both opp. ὑπέρ); Gal 5:23.—σύν τινι be with someone (Jos., Ant. 7, 181) Lk 22:56; 24:44; Ac 13:7; accompany, associate w. someone Lk 8:38; Ac 4:13; 22:9; take sides with someone (X., Cyr. 5, 4, 37; 7, 5, 77; Jos., Ant. 11, 259 [of God]) Ac 14:4.—πρός τινα be with someone Mt 13:56; Mk 6:3; J 1:1f. I am to be compared w. IMg 12.—μετά and gen. be with someone (Judg 14:11) Mt 17:17; Mk 3:14; 5:18; J 3:26; 12:17; ἔστω μεθʼ ὑμῶν εἰρήνη AcPlCor 2:40; of God, who is with someone (Gen 21:20; Judg 6:13 al.; Philo, Det. Pot. Ins. 4; Jos., Ant. 6, 181; 15, 138) Lk 1:66; J 3:2; 8:29; Ac 10:38 al.; also be with in the sense be favorable to, in league with (Ex 23:2) Mt 12:30; Lk 11:23; of punishment attending a pers. τὸ πῦρ ἐστι μετʼ αὐτοῦ AcPlCor 2:37.—παρά and gen. come from someone (X., An. 2, 4, 15; Just., D. 8, 4 ἔλεος παρὰ θεοῦ) fr. God J 6:46; 7:29; w. dat. be with, among persons Mt 22:25; Ac 10:6. W. neg. be strange to someone, there is no … in someone Ro 2:11; 9:14; Eph 6:9.—ὑπέρ w. gen. be on one’s side Mk 9:4 and Lk 9:50 (both opp. κατά); w. acc. be superior to (Sir 25:10; 30:16) Lk 6:40.

ⓒ of condition or circumstance: κατά w. acc. live in accordance with (Sir 28:10; 43:8; 2 Macc 9:20) κατὰ σάκρα, πνεῦμα Ro 8:5. οὐκ ἔστιν κατὰ ἄνθρωπον not human (in origin) Gal 1:11.—Fig. ὑπό w. acc. be under (the power of) someth. Ro 3:9; 6:14f; Gal 3:10, 25.—W. ἐν of existing ἐν τῷ θεῷ εἶναι of humankind: have its basis of existence in God Ac 17:28. Of states of being: ἐν δόξῃ 2 Cor 3:8; ἐν εἰρήνῃ Lk 11:21; ἐν ἔχθρᾳ at enmity 23:12; ἐν κρίματι under condemnation vs. 40. ἐν ῥύσει αἵματος suffer from hemorrhages Mk 5:25; Lk 8:43 (cp. Soph., Aj. 271 ἦν ἐν τῇ νόσῳ; cp. TestJob 35:1 ἐν πληγαῖς πολλαῖς). Periphrastically for an adj. ἐν ἐξουσίᾳ authoritative Lk 4:32. ἐν βάρει important 1 Th 2:7. ἐν τῇ πίστει true believers, believing 2 Cor 13:5. Be involved in someth. ἐν ἑορτῇ be at the festival=take part in it J 2:23. ἐν τούτοις ἴσθι devote yourself to these things 1 Ti 4:15 (cp. X., Hell. 4, 8, 7 ἐν τοιούτοις ὄντες=occupied w. such things; Jos., Ant. 2, 346 ἐν ὕμνοις ἦσαν=they occupied themselves w. the singing of hymns).—Fig., live in the light 1J 2:9; cp. vs. 11; 1 Th 5:4; in the flesh Ro 7:5; 8:8; AcPlCor 1:6. ἐν οἷς εἰμι in the situation in which I find myself Phil 4:11 (X., Hell. 4, 2, 1; Diod S 12, 63, 5; 12, 66, 4; Appian, Hann. 55 §228 ἐν τούτοις ἦν=he was in this situation; Jos., Ant. 7, 232 ἐν τούτοις ἦσαν=found themselves in this sit.; TestJob 35:6 ἐν τίνι ἐστίν; s. ZPE VIII 170). ἐν πολλοῖς ὢν ἀστοχήμασι AcPlCor 2:1. Of characteristics, emotions, etc. ἔν τινί ἐστιν, e.g. ἀδικία J 7:18; ἄγνοια Eph 4:18; ἀλήθεια J 8:44; 2 Cor 11:10 (cp. 1 Macc 7:18); ἁμαρτία 1J 3:5.

ⓓ of time ἐγγύς of καιρός be near Mt 26:18; Mk 13:28. πρὸς ἑσπέραν ἐστίν it is toward evening Lk 24:29 (Just., D. 137, 4 πρὸς δυσμὰς … ὁ ἥλιός ἐστι).

④ to be alive in a period of time, live, denoting temporal existence (Hom., Trag., Thu. et al.; Sir 42:21; En 102:5 Philo, De Jos. 17; Jos., Ant. 7, 254) εἰ ἤμεθα ἐν ταῖς ἡμέραις τῶν πατέρων ἡμῶν if we had lived in the days of our fathers Mt 23:30. ὅτι οὐκ εἰσὶν because they were no more 2:18 (Jer 38:15). ἦσαν ἐπὶ χρόνον ἱκανόν (those who were healed and raised by Christ) remained alive for quite some time Qua.

⑤ to be the time at which someth. takes place w. indications of specific moments or occasions, be (X., Hell. 4, 5, 1, An. 4, 3, 8; Sus 13 Theod.; 1 Macc 6:49; 2 Macc 8:26; Jos., Ant. 6, 235 νουμηνία δʼ ἦν; 11, 251): ἦν ὥρα ἕκτη it was the sixth hour (=noon acc. to Jewish reckoning) Lk 23:44; J 4:6; 19:14.—Mk 15:25; J 1:39. ἦν ἑσπέρα ἤδη it was already evening Ac 4:3. πρωί̈ J 18:28. ἦν παρασκευή Mk 15:42. ἦν ἑορτὴ τῶν Ἰουδαίων J 5:1. σάββατόν ἐστιν vs. 10 et al. Short clauses (as Polyaenus 4, 9, 2 νὺξ ἦν; 7, 44, 2 πόλεμος ἦν; exc. 36, 8 ἦν ἀρίστου ὥρα; Jos., Ant. 19, 248 ἔτι δὲ νὺξ ἦν) χειμὼν ἦν J 10:22; ἦν δὲ νύξ (sim. Jos., Bell. 4, 64) 13:30; ψύχος it was cold 18:18; καύσων ἔσται it will be hot Lk 12:55.

⑥ to take place as a phenomenon or event, take place, occur, become, be, be in (Hom., Thu. et al.; LXX; En 104:5; 106:6.—Cp. Just., D. 82, 2 of Christ’s predictions ὅπερ καὶ ἔστι ‘which is in fact the case’.) ἔσται θόρυβος τοῦ λαοῦ a popular uprising Mk 14:2. γογγυσμὸς ἦν there was (much) muttering J 7:12. σχίσμα there was a division 9:16; 1 Cor 1:10; 12:25. ἔριδες … εἰσίν quarrels are going on 1:11. δεῖ αἱρέσεις εἶναι 11:19. θάνατος, πένθος, κραυγή, πόνος ἔσται Rv 21:4. ἔσονται λιμοὶ κ. σεισμοί Mt 24:7. Hence τὸ ἐσόμενον what was going to happen (Sir 48:25) Lk 22:49. πότε ταῦτα ἔσται; when will this happen? Mt 24:3. πῶς ἔσται τοῦτο; how can this be? Lk 1:34. Hebraistically (הָיָה; s. KBeyer, Semitische Syntax im NT, ’62, 63–65) καὶ ἔσται w. fut. of another verb foll. and it will come about that Ac 2:17 (Jo 3:1); 3:23 (w. δέ); Ro 9:26 (Hos 2:1).—W. dat. ἐστί τινι happen, be granted, come, to someone (X., An. 2, 1, 10; Jos., Ant. 11, 255; Just., D. 8, 4 σοὶ … ἔλεος ἔσται παρὰ θεοῦ) Mt 16:22; Mk 11:24; Lk 2:10; GJs 1:1; 4:3; 8:3; τί ἐστίν σοι τοῦτο, ὅτι what is the matter with you, that GJs 17:2.—Of becoming or turning into someth. become someth. εἰς χολὴν πικρίας εἶναι become bitter gall Ac 8:23. εἰς σάρκα μίαν Mt 19:5; Mk 10:8; 1 Cor 6:16; Eph 5:31 (all Gen 2:24. Cp. Syntipas p. 42, 24 οὐκ ἔτι ἔσομαι μετὰ σοῦ εἰς γυναῖκα); τὰ σκολιὰ εἰς εὐθείας Lk 3:5 (Is 40:4); εἰς πατέρα 2 Cor 6:18; Hb 1:5 (2 Km 7:14; 1 Ch 22:10; 28:6); εἰς τὸ ἕν 1J 5:8.— Serve as someth. (IPriene 50, 39 [c. II B.C.] εἶναι εἰς φυλακὴν τ. πόλεως; Aesop., Fab. 28 H.=18 P.; 26 Ch.; 18 H-H. εἰς ὠφέλειαν; Gen 9:13; s. also εἰς 4d) 1 Cor 14:22; Col 2:22; Js 5:3.—Of something being ἀνεκτότερον ἔσται it will be more tolerable τινί for someone Lk 10:12, 14.

⑦ to exist as possibility ἔστιν w. inf. foll. it is possible, one can (Περὶ ὕψους 6; Diog. L. 1, 110 ἔστιν εὑρεῖν=one can find; Just., A I, 59, 10 ἔστι ταῦτα ἀκοῦσαι καὶ μαθεῖν; D. 42, 3 ἰδεῖν al.; Mel., P. 19, 127); neg. οὐκ ἔστιν νῦν λέγειν it is not possible to speak at this time Hb 9:5. οὐκ ἔστιν φαγεῖν it is impossible to eat 1 Cor 11:20 (so Hom. et al.; UPZ 70, 23 [152/151 B.C.] οὐκ ἔστι ἀνακύψαι με πώποτε … ὑπὸ τῆς αἰσχύνης; 4 Macc 13:5; Wsd 5:10; Sir 14:16; 18:6; EpJer 49 al.; EpArist 163; Jos., Ant. 2, 335; Ath. 22, 3 ἔστιν εἰπεῖν).

⑧ to have a point of derivation or origin, be,/come from somewhere ἐκ τῆς ἐξουσίας Ἡρῴδου from Herod’s jurisdiction Lk 23:7; ἐκ Ναζαρέτ (as an insignificant place) J 1:46; ἐκ τῆς γῆς 3:31; ἐκ γυναικός 1 Cor 11:8 al. ἐξ οὐρανοῦ, ἐξ ἀνθρώπων be of heavenly (divine), human descent Mt 21:25; Mk 11:30; Lk 20:4. Be generated by (cp. Sb 8141, 21f [ins I B.C.] οὐδʼ ἐκ βροτοῦ ἤεν ἄνακτος, ἀλλὰ θεοῦ μεγάλου ἔκγονος; En 106:6) Mt 1:20. Esp. in Johannine usage ἐκ τοῦ διαβόλου εἶναι originate from the devil J 8:44; 1J 3:8. ἐκ τοῦ πονηροῦ 3:12; ἐκ τοῦ κόσμου J 15:19; 17:14, 16; 1J 4:5. ἐκ τῆς ἀληθείας εἶναι 2:21; J 18:37 etc. Cp. 9 end.

⑨ to belong to someone or someth. through association or genetic affiliation, be, belong w. simple gen. (X., Hell. 2, 4, 36; Iambl., Vi. Pyth. 33, 230 τῶν Πυθαγορείων) οἱ τῆς ὁδοῦ ὄντες those who belong to the Way Ac 9:2. εἰμὶ Παύλου I belong to Paul 1 Cor 1:12; 3:4; cp. Ro 8:9; 2 Cor 10:7; 1 Ti 1:20; Ac 23:6. ἡμέρας εἶναι belong to the day 1 Th 5:8, cp. vs. 5. W. ἔκ τινος 1 Cor 12:15f; Mt 26:73; Mk 14:69f; Lk 22:58 al. (cp. X., Mem. 3, 6, 17; oft LXX). ἐκ τοῦ ἀριθμοῦ τῶν δώδεκα belong to the twelve 22:3. ὅς ἐστιν ἐξ ὑμῶν who is a fellow-countryman of yours Col 4:9.—To belong through origin 2 Cor 4:7. Of Mary: ἦν τῆς φυλῆς τοῦ Δαυίδ was of David’s line GJs 10:1. Cp. 8 above.

⑩ to have someth. to do with someth. or someone, be. To denote a close relationship ἐξ ἔργων νόμου εἶναι rely on legal performance Gal 3:10. ὁ νόμος οὐκ ἔστιν ἐκ πίστεως the law has nothing to do with faith vs. 12.—To denote a possessor Mt 5:3, 10; l9:14; Mk 12:7; Lk 18:16; 1 Cor 6:19. Esp. of God who owns the Christian Ac 27:23; 1 Cor 3:23; 2 Ti 2:19 (Num 16:5). οὐδʼ εἶναι τὸν κόσμον θεοῦ, ἀλλὰ ἀγγέλων AcPlCor 1:15 (cp. Just., A II, 13, 4 ὅσα … καλῶς εἴρηται, ἡμῶν τῶν χριστιανῶν ἐστι).—W. possess. pron. ὑμετέρα ἐστὶν ἡ βασιλεία Lk 6:20. οὐκ ἔστιν ἐμὸν δοῦναι Mk 10:40 (cp. Just., A I, 4, 2 ὑμέτερον ἀγωνιᾶσαί ἐστι ‘it is a matter for your concern’).—To denote function (X., An. 2, 1, 4) οὐχ ὑμῶν ἐστιν it is no concern of yours Ac 1:7—Of quality παιδεία οὐ δοκεῖ χαρᾶς εἶναι discipline does not seem to be (partake of) joy Hb 12:11.—10:39.

⑪ as an auxiliary: very commonly the simple tense forms are replaced by the periphrasis εἶναι and the ptc. (B-D-F §352–55; Mlt. 225–27, 249; Mlt-H. 451f; Rdm.² 102, 105, 205; Kühner-G. I 38ff; Rob. 374–76, 1119f; CTurner, Marcan Usage: JTS 28, 1927 349–51; GKilpatrick, BT 7, ’56, 7f; very oft. LXX).

ⓐ (as in Hom et al.) w. the pf. ptc. to express the pf., plpf. and fut. pf. act. and pass. (s. Mayser 329; 377) ἦσαν ἐληλυθότες they had come Lk 5:17. ἦν αὐτῶν ἡ καρδία πεπωρωμένη their hearts were hardened Mk 6:52. ἠλπικότες ἐσμέν we have set our hope 1 Cor 15:19. ὁ καιρὸς συνεσταλμένος ἐστίν the time has become short 7:29. ἦν ἑστώς (En 12:3) he was standing (more exactly he took his stand) Lk 5:1.

ⓑ w. pres. ptc. (B-D-F §353).

α. to express the pres. ἐστὶν προσαναπληροῦσα τὰ ὑστερήματα supplies the wants 2 Cor 9:12 (Just., A I, 26, 5 Μαρκίων … καὶ νῦν ἔτι ἐστὶ διδάσκων; Mel., P. 61, 441 ἐστὶν … κηρυσσόμενον).

β. impf. or aor. ἦν καθεύδων he was sleeping Mk 4:38. ἦσαν ἀναβαίνοντες … ἦν προάγων 10:32; cp. Lk 1:22; 5:17; 11:14 al. (JosAs 1:3 ἦν συνάγων τὸν σίτον; Mel., P. 80, 580 ἦσθα εὐφραινόμενος). ἦν τὸ φῶς τὸ ἀλήθινόν … ἐρχόμενον εἰς τὸν κόσμον the true light entered the world J 1:9, w. ἦν introducing a statement in dramatic contrast to the initial phrase of vs. 8.—To denote age (Demetr.: 722 Fgm. 1, 2 al. Jac.; POxy 275, 9 [66 A.D.] οὐδέπω ὄντα τῶν ἐτῶν; Tob 14:11) Mk 5:42; Lk 3:23; Ac 4:22; GJs 12:3.—Mussies 304–6.

γ. fut. ἔσῃ σιωπῶν you will be silent Lk 1:20; cp. 5:10; Mt 24:9; Mk 13:13; Lk 21:17, 24 al.; 2 Cl 17:7 Bihlm. (the child) shall serve him (God).

ⓒ w. aor. ptc. as plpf. (Aelian, NA 7, 11; Hippiatr. 34, 14, vol. I p. 185, 3 ἦν σκευάσας; ISyriaW 2070b ἦν κτίσας; AcThom 16; 27 [Aa II/2 p. 123, 2f; p. 142, 10]; B-D-F §355 m.—JVogeser, Z. Sprache d. griech. Heiligenlegenden, diss. Munich 1907, 14; JWittmann, Sprachl. Untersuchungen zu Cosmas Indicopleustes, diss. Munich 1913, 20; SPsaltes, Gramm. d. byzant. Chroniken 1913, 230; Björck [διδάσκω end] 75; B-D-F §355). ἦν βληθείς had been thrown Lk 23:19; J 18:30 v.l.—GPt 6:23; 12:51. (Cp. Just., A II, 10, 2 διʼ εὑρέσεως … ἐστὶ πονηθέντα αὐτοῖς ‘they achieved through investigation’).

ⓓ Notice esp. the impersonals δέον ἐστίν it is necessary (Pla. et al.; POxy 727, 19; Sir praef. ln. 3; 1 Macc 12:11 δέον ἐστὶν καὶ πρέπον) Ac 19:36; εἰ δέον ἐστίν if it must be 1 Pt 1:6 (s. δεῖ 2a); 1 Cl 34:2; πρέπον ἐστίν it is appropriate (Pla. et al.; POxy 120, 24; 3 Macc 7:13) Mt 3:15; 1 Cor 11:13.

ⓔ In many cases the usage w. the ptc. serves to emphasize the duration of an action or condition (BGU 183, 25 ἐφʼ ὸ̔ν χρόνον ζῶσα ᾖ Σαταβούς); JosAs 2:1 ἦν … ἐξουθενοῦσα καὶ καταπτύουσα πάντα ἄνδρα). ἦν διδάσκων he customarily taught Mk 1:22; Lk 4:31; 19:47. ἦν θέλων he cherished the wish 23:8. ἦσαν νηστεύοντες they were keeping the fast Mk 2:18. ἦσαν συλλαλοῦντες they were conversing for a while 9:4. ἦν προσδεχόμενος he was waiting for (the kgdm.) 15:43. ἦν συγκύπτουσα she was bent over Lk 13:11.

ⓕ to emphasize the adjectival idea inherent in the ptc. rather than the concept of action expressed by the finite verb ζῶν εἰμι I am alive Rv 1:18. ἦν ὑποτασσόμενος he was obedient Lk 2:51. ἦν ἔχων κτήματα πολλά he was very rich Mt 19:22; Mk 10:22. ἴσθι ἐξουσίαν ἔχων you shall have authority Lk 19:17 (Lucian, Tim. 35 ἴσθι εὐδαιμονῶν). ἦν καταλλάσσων (God) was reconciling 2 Cor 5:19 (cp. Mel., P. 83, 622 οὗτος ἦν ὁ ἐκλεξάμενός σε; Ath. 15, 2 οὗτός ἐστιν ὁ … καρπούμενος).—LMcGaughy, Toward a Descriptive Analysis of ΕΙΝΑΙ as a Linking Verb in the Gk. NT, diss. Vanderbilt, ’70 (s. esp. critique of treatment of εἰμί in previous edd. of this lexicon pp. 12–15).—Mlt. 228. B. 635. DELG. M-M. EDNT. TW. Sv.

 

НКУ с устройствами ограничения воздействия внутренней дуги
-
[Интент]

Параллельные тексты EN-RU

Assemblies equipped with devices limiting internal arc effects (active protection)

A design philosophy which is completely different from that just considered consists in guaranteeing the resistance to internal arcing by installing devices limiting the arc.

The approaches in that direction can be of two different types:
• limiting the destructive effects of the arc, once it has occured, by means of arc detectors
• limiting the destructive effects of the arc, once it has occured, by means of overpressure detectors.

The first possibility consists in installing in the assembly arc detectors which sense the light flux associated with the electric arc phenomenon.

Once the arc has been detected, these devices send an opening signal to the incoming circuit-breaker, thus guaranteeing tripping times of the order of 1-2 ms, therefore shorter than those proper of the circuit-breaker.

The operating logic of an arc detector is the following: the occurrence of an arc inside the switchboard is detected by the arc detector because an intense light radiation is associated with this phenomenon.

The arcing control system detects the event and sends a tripping signal to the circuit-breaker.

All the above with trip times of a few milliseconds and supplanting the tripping of the CB overcurrent relay which, for example, could be delayed due to current selectivity questions.

Figure 1 shows the possible positions where this device can be installed inside a switchboard.

The ideal solution is that which provides the installation of at least one detector for each column, with the consequent reduction to a minimum of the length of the optical fibers carrying the signal.

In order to prevent from an unwanted tripping caused by light sources indepent of the arc (lamps, solar radiation etc.), an additional current sensor is often positioned at the incoming of the main circuit-breaker.

Only in the event of an arc, both the incoming sensor which detects an “anomalous” current due to the arc fault as well as the sensor detecting the light radiation as sociated with the arc enable the system to intervene and allow the consequent opening of the circuit-breaker.

The second possibility consists in installing overpressure sensors inside the switchboard.

As previously described, the overpressure wave is one of the other effects occurring inside an assembly in case of arcing.

As a consequence it is possible to install some pressure sensors which are able to signal the pressure peak associated with the arc ignition with a delay of about 10-15 ms.

The signal operates on the supply circuit-breaker without waiting for the trip times of the selectivity protections to elapse, which are necessarily longer.

Such a system does not need any electronic processing device, since it acts directly on the tripping coil of the supply circuit-breaker.

Obviously it is essential that the device is set at fixed trip thresholds.

When an established internal overpressure is reached, the arc detector intervenes.

However, it is not easy to define in advance the value of overpressure generated by an arc fault inside a switchboard.

[ABB]

НКУ с устройствами ограничения воздействия внутренней дуги (активная защита)

Для решения этой задачи используются совершенно другие, отличающиеся от ранее рассмотренных, принципы, заключающиеся в том, что противодействие внутренней дуге обеспечивается применением устройств, ограничивающих саму дугу.

Существует два типа решения проблемы в этом направлении:
• ограничение разрушающего воздействия дуги после того, как ее обнаружат специальные устройства
• ограничение разрушающего воздействия дуги после того, как специальные устройства обнаружат возникновение избыточного давления.

В первом случае в НКУ устанавливают устройства обнаружения дуги, реагирующие на световой поток, сопровождающий явление электрической дуги.

При обнаружении дуги данные устройства посылают сигнал управления на размыкание вводного автоматического выключателя. Гарантируемое время реакции составляет 1-2 мс, что меньше времени срабатывания автоматического выключателя.

Логика работы устройства обнаружения дуги следующая: Дуга, возникшая внутри НКУ, обнаруживается датчиком, реагирующим на интенсивное световое излучение, которым сопровождается горение дуги.

Обнаружив дугу, система управления посылает сигнал автоматическому выключателю.

Время срабатывания датчика и системы управления составляет несколько миллисекунд, что меньше времени срабатывания автоматического выключателя, осуществляющего защиту от сверхтока, который обычно для обеспечения требуемой селективности срабатывает с задержкой.

На рис. 1 показаны места возможной установки устройства защиты внутри НКУ.

Идеальным решением является установка, по крайней мере, одного устройства защиты в каждый шкаф многошкафного НКУ.

Это позволит до минимума сократить длину оптоволоконных кабелей передачи сигнала.

Для предотвращения ложного срабатывания от других источников света (т. е. не от дуги), например, таких как лампы, солнечное излучение и т. п., дополнительно в главной цепи вводного автоматического выключателя устанавливают датчик тока.

Только при наличии двух событий, а именно: срабатывания датчика света и обнаружения аномального увеличения тока, система управления считает, что возникла электрическая дуга и подает команду на отключение вводного автоматического выключателя.

Второе решение заключается в установке внутри НКУ датчика избыточного давления.

Как было описано ранее, одним из характерных проявлений электрической дуги, возникшей внутри НКУ, является ударная волна.

Это означает, что можно установить несколько датчиков давления, задачей которых является обнаружение импульса давления (с задержкой 10…15 мс), обусловленного зажиганием дуги.

Сигнал от датчиков давления поступает на вводной автоматический выключатель, который срабатывает без задержки на обеспечение селективности.

Такая система не нуждается в электронном устройстве обработки информации, поскольку воздействует непосредственно на независимый расцепитель автоматического выключателя.

Вполне понятно, что такое устройство имеет фиксированный порог срабатывания.

Датчик-реле дуги сработает, как только будет достигнуто заданное значение избыточного давления.

Следует иметь в виду, что не так легко заранее определить значение избыточного давления, которое будет создано при зажигании дуги внутри НКУ.

[Перевод Интент]

Тематики

• НКУ (шкафы, пульты,...)

EN

• assembly equipped with devices limiting internal arc effects

 

НКУ с устройствами ограничения воздействия внутренней дуги
-
[Интент]

Параллельные тексты EN-RU

Assemblies equipped with devices limiting internal arc effects (active protection)

A design philosophy which is completely different from that just considered consists in guaranteeing the resistance to internal arcing by installing devices limiting the arc.

The approaches in that direction can be of two different types:
• limiting the destructive effects of the arc, once it has occured, by means of arc detectors
• limiting the destructive effects of the arc, once it has occured, by means of overpressure detectors.

The first possibility consists in installing in the assembly arc detectors which sense the light flux associated with the electric arc phenomenon.

Once the arc has been detected, these devices send an opening signal to the incoming circuit-breaker, thus guaranteeing tripping times of the order of 1-2 ms, therefore shorter than those proper of the circuit-breaker.

The operating logic of an arc detector is the following: the occurrence of an arc inside the switchboard is detected by the arc detector because an intense light radiation is associated with this phenomenon.

The arcing control system detects the event and sends a tripping signal to the circuit-breaker.

All the above with trip times of a few milliseconds and supplanting the tripping of the CB overcurrent relay which, for example, could be delayed due to current selectivity questions.

Figure 1 shows the possible positions where this device can be installed inside a switchboard.

The ideal solution is that which provides the installation of at least one detector for each column, with the consequent reduction to a minimum of the length of the optical fibers carrying the signal.

In order to prevent from an unwanted tripping caused by light sources indepent of the arc (lamps, solar radiation etc.), an additional current sensor is often positioned at the incoming of the main circuit-breaker.

Only in the event of an arc, both the incoming sensor which detects an “anomalous” current due to the arc fault as well as the sensor detecting the light radiation as sociated with the arc enable the system to intervene and allow the consequent opening of the circuit-breaker.

The second possibility consists in installing overpressure sensors inside the switchboard.

As previously described, the overpressure wave is one of the other effects occurring inside an assembly in case of arcing.

As a consequence it is possible to install some pressure sensors which are able to signal the pressure peak associated with the arc ignition with a delay of about 10-15 ms.

The signal operates on the supply circuit-breaker without waiting for the trip times of the selectivity protections to elapse, which are necessarily longer.

Such a system does not need any electronic processing device, since it acts directly on the tripping coil of the supply circuit-breaker.

Obviously it is essential that the device is set at fixed trip thresholds.

When an established internal overpressure is reached, the arc detector intervenes.

However, it is not easy to define in advance the value of overpressure generated by an arc fault inside a switchboard.

[ABB]

НКУ с устройствами ограничения воздействия внутренней дуги (активная защита)

Для решения этой задачи используются совершенно другие, отличающиеся от ранее рассмотренных, принципы, заключающиеся в том, что противодействие внутренней дуге обеспечивается применением устройств, ограничивающих саму дугу.

Существует два типа решения проблемы в этом направлении:
• ограничение разрушающего воздействия дуги после того, как ее обнаружат специальные устройства
• ограничение разрушающего воздействия дуги после того, как специальные устройства обнаружат возникновение избыточного давления.

В первом случае в НКУ устанавливают устройства обнаружения дуги, реагирующие на световой поток, сопровождающий явление электрической дуги.

При обнаружении дуги данные устройства посылают сигнал управления на размыкание вводного автоматического выключателя. Гарантируемое время реакции составляет 1-2 мс, что меньше времени срабатывания автоматического выключателя.

Логика работы устройства обнаружения дуги следующая: Дуга, возникшая внутри НКУ, обнаруживается датчиком, реагирующим на интенсивное световое излучение, которым сопровождается горение дуги.

Обнаружив дугу, система управления посылает сигнал автоматическому выключателю.

Время срабатывания датчика и системы управления составляет несколько миллисекунд, что меньше времени срабатывания автоматического выключателя, осуществляющего защиту от сверхтока, который обычно для обеспечения требуемой селективности срабатывает с задержкой.

На рис. 1 показаны места возможной установки устройства защиты внутри НКУ.

Идеальным решением является установка, по крайней мере, одного устройства защиты в каждый шкаф многошкафного НКУ.

Это позволит до минимума сократить длину оптоволоконных кабелей передачи сигнала.

Для предотвращения ложного срабатывания от других источников света (т. е. не от дуги), например, таких как лампы, солнечное излучение и т. п., дополнительно в главной цепи вводного автоматического выключателя устанавливают датчик тока.

Только при наличии двух событий, а именно: срабатывания датчика света и обнаружения аномального увеличения тока, система управления считает, что возникла электрическая дуга и подает команду на отключение вводного автоматического выключателя.

Второе решение заключается в установке внутри НКУ датчика избыточного давления.

Как было описано ранее, одним из характерных проявлений электрической дуги, возникшей внутри НКУ, является ударная волна.

Это означает, что можно установить несколько датчиков давления, задачей которых является обнаружение импульса давления (с задержкой 10…15 мс), обусловленного зажиганием дуги.

Сигнал от датчиков давления поступает на вводной автоматический выключатель, который срабатывает без задержки на обеспечение селективности.

Такая система не нуждается в электронном устройстве обработки информации, поскольку воздействует непосредственно на независимый расцепитель автоматического выключателя.

Вполне понятно, что такое устройство имеет фиксированный порог срабатывания.

Датчик-реле дуги сработает, как только будет достигнуто заданное значение избыточного давления.

Следует иметь в виду, что не так легко заранее определить значение избыточного давления, которое будет создано при зажигании дуги внутри НКУ.

[Перевод Интент]

Тематики

• НКУ (шкафы, пульты,...)

EN

• assembly equipped with devices limiting internal arc effects