CS235948B1

CS235948B1 - Equipment for electric motors' comparison phase protection

Info

Publication number: CS235948B1
Application number: CS815027A
Authority: CS
Inventors: Mark J Klacel; Valentin J Poljakov; Sergej N Simonov; Vjaceslav V Musin; Voldemar P Neljubin
Original assignee: Mark J Klacel; Valentin J Poljakov; Sergej N Simonov; Vjaceslav V Musin; Voldemar P Neljubin
Priority date: 1981-06-30
Filing date: 1981-06-30
Publication date: 1985-05-15
Also published as: CS502781A1

Abstract

Vynález se týká techniky reléové ochrany. Zařízení pro srovnávací fázovou ochranu elektromotoru obsahuje transformátory proudu připojené na blok měničů proudu, jehož výstupy jsou připojeny na vstupy bloku pro porovnáváni fázi, výstup tohoto bloku na vstup pracovního ústroji zapojeného do odpojovaoiho obvodu elektromotoru. Nově jsou zapojeny dva bloky měničů proudu připojené na první blok měniče proudu a na dva nově zapojené bloky pro porovnávání fázi, které jsou připojeny k jednomu ze tri nově zapojených bloků samokontroly bezporuchového stavu, jehož výstupy jsou připojeny na pracovní ústrojí.The invention relates to a relay protection technique. Comparative phase protection device electric motor contains transformers current connected to a block of power converters whose outputs are connected to inputs block for comparing phase, output of this block to the input of the working device connected to the electric motor disconnecting circuit. Two current inverter blocks are newly connected connected to the first power converter block and the two newly connected comparison blocks phase that are connected to one of the three newly connected self-checking blocks trouble-free condition whose outputs are attached to the working device.

Description

235948 2 Η3ο6ρετβΗΗβ othochtch κ oC/iacTH ajieKTpoTexHHKH, a ημθηηο k TexHHxe pejieňHOň 3ainHTUη Μοχβτ CbiTh ncnonbaoBaHO b xa^ecTBe EH<ř4>epeHUHajihHO-4>a3HOň aawHTU snexTpoflBHraTenH otMe*Ay4>a3Hux 3aMUxaHHft.235948 2 63ο6ρετβΗΗβ othochtch κ oC / iacTH ajieKTpoTexHHKH, and to TexHHxe pejieňHOň 3ainHTUη Μοχβτ CbiTh ncnonbaoBaHO b xa ^ ecTBe EH <ř4> epeHUHajihHO-4> a3HOn aawHTU snexTpoflBHraTenH otMe * Ay4> a3Hux 3aMUxaHHft.

HasecTHu ycTpoftcTBa ΑΗφφβρβΗΐχΗΒηΒΗθ-φΒ3ΗθΒ sasiHTU anexTOABHraTeneft /1/, coaepwainHeTpaHc0opMaTopu Toxa απη xa«AOfl <ta3u co ctopohu BBOfla h Hyneeux bnboaob, k kotopům noflKJDQwe-HU ČJ1OKH CpaBHeHHH SJíeXTpH^íeCXHX ΒβηΗΗΗΗ ΠΟ φβ3β , a ΠΟΟηβΑΗΗβ “ K HCnOJIHHTeJlbHOMy OpraHy.HasecTHu ycTpoftcTBa ΑΗφφβρβΗΐχΗΒηΒΗθ-φΒ3ΗθΒ sasiHTU anexTOABHraTeneft / 1 /, coaepwainHeTpaHc0opMaTopu Toxa απη x «AOfl <ta3u what ctopohu BBOfla h Hyneeux bnboaob to kotopům noflKJDQwe-HU ČJ1OKH CpaBHeHHH SJíeXTpH ^ íeCXHX ΒβηΗΗΗΗ ΠΟ φβ3β and ΠΟΟηβΑΗΗβ" K HCnOJIHHTeJlbHOMy Oprah.

MsBecTHO ycTpoňcTso ΑΗφφθρβΗϋΗβηΐιΗΟ-φδΉΗΟίϊ aainHTbi snexTpoABHraTenH, coAep*ainee Tpanc-φΟρΜΗΤΟρΒΙ TOxa ΑΠΛ Ka*AOft φ33Η CO CTOpOHU BBOflOB nHTaHHH H HyJIGBUX BfcJBOflOB, BTOpHMHUe O6-motkh xotopux noflKJiWHeHbí κ Bxoflaw ĎJioxa npeo6pa3OBaTeneft Toxa, buxoau κοτοροτο - κ BXOflaMφ33Ο0ρ3ΒΗΗΒΗΚ)ΉβΓΟ finOKa, BUXOAU ΠΟΟηβΑΗβΓΟ - K BXOfly ΗΟΠΟηΗΗΤβηΒΗΟΓΟ OpraHa, a BUXOA Hcnon-HHTejibHoro oprana - b uenb οτχηκΊβΗΗΗ 3JieKTpoflBnraTenH /2/» IIocjieflHee ycTpoňcTBO no TeXHH^eóxoMy peuieHHio h nocTasneHHOÉ 3ajia^e ΗΒηπβτοΗ HanÓonee6jih3kh κ npeflJiaraeMOMy η πρηηητο aBTopaMH 3a προτοτκπ. *MsBecTHO ycTpoňcTso ΑΗφφθρβΗϋΗβηΐιΗΟ-φδΉΗΟίϊ aainHTbi snexTpoABHraTenH, coAep * Aine Tpanc-φΟρΜΗΤΟρΒΙ TOXA ΑΠΛ Ka * AOft φ33Η CO CTOpOHU BBOflOB nHTaHHH H HyJIGBUX BfcJBOflOB, BTOpHMHUe O6-motkh xotopux noflKJiWHeHbí κ Bxoflaw ĎJioxa npeo6pa3OBaTeneft Toxa, buxoau κοτοροτο - κ BXOflaMφ33Ο0ρ3ΒΗΗΒΗΚ) ΉβΓΟ finOKa, BUXOAU ΠΟΟηβΑΗβΓΟ - The BXOfly ΗΟΠΟηΗΗΤβηΒΗΟΓΟ Oprah and Buxó Hcnon-HHTejibHoro OPRAN - b uenb οτχηκΊβΗΗΗ 3JieKTpoflBnraTenH / 2 / »IIocjieflHee ycTpoňcTBO no TeXHH eóxoMy peuieHHio ^ h ^ e nocTasneHHOÉ 3aR ΗΒηπβτοΗ HanÓonee6jih3kh npeflJiaraeMOMy κ η πρηηητο aBTopaMH προτοτκπ 3a. *

Ero HeAOcraTXOM ηβιιηθτόη bosmomhoctb ποχηογο cpaCaTUBaHHH h HecpaOaTUBaHHH npH oTxaaeΟΑΗΟΓΟ H3 eťo SJíeMeHTOB, a Taxxe OTCyTCTBHe BO3MOJKHOCTH ΚΟΗΤρΟΠΗρΟΒΒΤΒ 3TH OTXaabl.Ero HeAOcraTXOM ηβιιηθτόη bosmomhoctb ποχηογο cpaCaTUBaHHH h HecpaOaTUBaHHH npH oTxaaeΟΑΗΟΓΟ H3 eťo SJieMeHTOB, and Taxxe OTCyTCTBHe BO3MOJKHOCTH ΚΟΗΤρΟΠΗρΟΒΒΤΒ 3TH OTXaabl.

Uenb npennaraeMoro HsoCpeTeHHH - ycTpaHeHHe η33ββηηηχ HenocTaTKOB nyTeM oCecneneHHHcaMOKOHTpOJIJI HCnpaBHOCTH Η ΠΟΒΜΐΙβΗΗΗ HagettHOCTH. nocTaBJíeHHaH uenb nocTHraeTcn τθΜ, ίτο b ycTpoňcTBO απη ΑΗφφβρβΗΑΗβηΒΗΟ—Φβ3ηοΗ aanw-tn 3JiexTpoflBnraTeJiH, cogepMamee τρ3ΗθφορΜβτορΗ Toxa απη xaacAoň φα3Η co ctopohu bboaobnHTaHHH H HyjieBUX BUBOAOB, BTOpJMHUe OĎMOTKH KOTOptJX nOAKAJO^eHtl X BXOflaM 6noxa npeOÓpa3OBa-Teneň Toxa, buxoau κοτορογο - κ BXOflaM 0a3OcpaBHHBawmero 6noxa, buxoa nocneAHero cBHaaHc bxoaom HcnojiHHTe/ibHOro opraHa, a buxoa HcnonHHTenbHoro opraHa BKnw^eH b uent οτκιικιηθηηη3JiexTpoABHraTeji«, AonojiHHTejibHO ββθαθηη flBa Ďnoxa npeoCpasoBaTeneH Toxa, bxoau xotopuxBKJno^eHbí nocJieAOBaTenbHO c βχοαβμη BUtueynoMHHyTOro 6noxa npeoĎpasoBaTeneH Toxa, a buxoaunOflKJIICHeHb] x BXOflaM SByX ΑόΠΟΗΗΗΤβΗΒΗΟ BBefleHIMX ftaSOCpaBHHBaromfX ČnOKOB, BUXOAU XaMAOTOφ33Ο0ΡΒΒΗΗΒΒΗ}Ι4βΓΟ 6noxa nOAKJlW^eHfal X BXOAY OAHOrO H3 Tpex, BHOBb ΒΒβΑθΗΗΧ SJIOKOB caMOXOHTpOAHHCnpaBHOCTH, a BUXOAU ΠΟΟΠβΑΗΗΧ - K BXOAY ΗΟΠΟΠΗΗΤβΠΒΗΟΓΟ opraHa, ΠΡΗΗβΜ KajKfífalň H3 ČJIOKOBcaMOKOHTpoJiH HcnpaBHOcŤH coAep»HT TpexnosHijHOHHoe noJiHpnaoBaHHoe pene, Hanajio pačoveň oC-motxh κοτορογο úOAXJiKUíeHO κ buxoay cooTBeTCTBywiaero φβ3ocpaBHHBaKiiuoro Cnoxa, xOHeu paCo^eftOČMOTXH H HanaJlO TOpMOSHOň OCMOTKH - X MHHycy HCTOHHHKa ΠΗΤβΗΗΗ, XOHeU TOpMO3HOň OĎMOTKH -x jieBOMy xoHTaxTy τρθχπο3ηαηοηηογο nojiapH3OBaHHoro pene, hkopb xoToporo nepe3 pesHCToph cHrHajibHyto JiaMny - x nnrocy HCTOHHHxa nHTaHHH, npaeuň kohiskt Ίθρβ3 αηοα - κ bxoay Hcnon-HHTenbHoro opraHa η κ BXOAY Cnoxa caMOKOHTpojifl HCnpaBHOCTH, πρκΗβΜ HcnojiHHTejibHuR opraHcoflepwHT tph npoMeacyTO^iHfcax pene, oahh buboa oCmotkh xajKAoro H3 hhx ποΑκηιοΗβΗ yepe3 pás-MuxaioiaHe κοΗτβχτω pene nonoweHHH "OTxnro^eHO" BUxníoHaTenH. sneKTpoABHraTenn x nniocy HCTOHHHKanHTaHHH, a BTopoň buboa xajxAoro npoMe»yTOHHoro pene noAKJimeH xepea oahh hs τρβχ ΑοποπΗκτβπΒ-ΗΗΧ THpHCTOpOB K MHHycy HCTO^HHXa ΠΗΤβΗΗΗ, ynpaBnHKMUHB BUBOA KáXAOrO THpHCTOpa ΟΟβΑΚΗβΗ Η·-pe3 pe3HCT.op c bhxoaom 6noxa caMOKOHTponn HCnpaBHOCTH, ποσηβΑΟΒ^τβηΒΗΟ coeAHHeHHue xoHTaxranepBoro h BTOporo npoMeKyTOtíHoro pene, a Taxace βτορογο h TpeTbero npoMeKyTo^Horo pene noA”κηκίΉθΗΜ b uenb οτχηιο^βΗΗΗ BuxnxrcaTenH snexTpoABHraTenH, npHweM Me«ny tohxoH coeAHHeHHHKOHTaxTós nepBoro η βτορογο npoMeíxyTo^íHoro pene η τοίκοΗ coeAHHeHHH βτορογο η τπβτΒβτοΠρΟΜβΗγΤΟΊΗΟΓΟ pene ΠΟΑΧΑΜΗβΗ ΑΗΟΑ.Uenb npennaraeMoro HsoCpeTeHHH - ycTpaHeHHe η33ββηηηχ HenocTaTKOB nyTeM oCecneneHHHcaMOKOHTpOJIJI HCnpaBHOCTH Η ΠΟΒΜΐΙβΗΗΗ HagettHOCTH. nocTaBJíeHHaH uenb nocTHraeTcn τθΜ, ίτο b ycTpoňcTBO απη ΑΗφφβρβΗΑΗβηΒΗΟ-Φβ3ηοΗ aanw-tn 3JiexTpoflBnraTeJiH, cogepMamee τρ3ΗθφορΜβτορΗ Toxa απη xaacAoň φα3Η what ctopohu bboaobnHTaHHH H HyjieBUX BUBOAOB, BTOpJMHUe OĎMOTKH KOTOptJX nOAKAJO ^ eHtl X BXOflaM 6noxa npeOÓpa3OBa-tenente Toxa, buxoau κοτορογο - κ BXOflaM 0a3OcpaBHHBawmero 6noxa, Buxó nocneAHero cBHaaHc bxoaom HcnojiHHTe / ibHOro Oprah and Buxó HcnonHHTenbHoro Oprah BKnw ^ eH b of eluent οτκιικιηθηηη3JiexTpoABHraTeji «AonojiHHTejibHO ββθαθηη FLBA Ďnoxa npeoCpasoBaTeneH Toxa, bxoau xotopuxBKJno ^ eHbí nocJieAOBaTenbHO c βχοαβμη BUtueynoMHHyTOro 6noxa npeoĎpasoBaTeneH Toxa and buxoaunOflKJIICHeHb] x BXOflaM SByX ΑόΠΟΗΗΗΤβΗΒΗΟ BBefleHIMX ftaSOCpaBHHBaromfX CNOKOB, BUXOAU XaMAOTOφ33Ο0ΡΒΒΗΗΒΒΗ} Ι4βΓΟ 6noxa nOAKJlW ^ eHfal X BXOAY OAHOrO H3 Tpex, BHOBb ΒΒβΑθΗΗΧ SJIOKOB caMOXOHTpOAHHCnpaBHOCTH, and BUXOAU ΠΟΟΠβΑΗΗΧ - The BXOAY ΗΟΠΟΠΗΗΤβΠΒΗΟΓΟ Oprah ΠΡΗΗβΜ KajKfífalň H3 ČJIOKOBcaMOKOHTpoJiH HcnpaBHOcŤH coAep »HT TpexnosHijHOHHoe noJiHpnaoBaHHoe foam, Hanajio pačoveň alpha-motxh κοτορογο úOAXJiKUíeHO κ buxoay cooTBeTCTBywiaero φβ3ocpaBHHBaKiiuoro Cnoxa, Paco xOHeu eftOČMOTXH ^ H HanaJlO TOpMOSHOň OCMOTKH - X MHHycy HCTOHHHKa ΠΗΤβΗΗΗ, XOHeU TOpMO3HOň OĎMOTKH -x jieBOMy xoHTaxTy τρθχπο3ηαηοηηογο nojiapH3OBaHHoro foam, hkopb xoToporo nepe3 pesHCToph cHrHajibHyto JiaMny - x nnrocy HCTOHHHxa nHTaHHH, npaeuň kohiskt Ίθρβ3 αηοα - κ bxoay Hcnon-HHTenbHoro Oprah η κ bXOAY Cnoxa caMOKOHTpojifl HCnpaBHOCTH, πρκΗβΜ HcnojiHHTejibHuR opraHcoflepwHT tph npoMeacyTO ^ iHfcax foam, oahh Bubo oCmotkh xajKAoro H3 hhx ποΑκηιοΗβΗ yepe3 band-MuxaioiaHe κοΗτβχτω pene nonoweHHH "OTxnro ^ eHO" BUxnioHaTenH. sneKTpoABHraTenn x nniocy HCTOHHHKanHTaHHH and BTopoň Bubo xajxAoro npoMe »yTOHHoro foam noAKJimeH xepea oahh τρβχ ΑοποπΗκτβπΒ HS-ΗΗΧ THpHCTOpOB MHHycy HCTO K ^ HHXa ΠΗΤβΗΗΗ, ynpaBnHKMUHB Bubo KáXAOrO THpHCTOpa ΟΟβΑΚΗβΗ Η · -pe3 pe3HCT.op c bhxoaom 6noxa caMOKOHTponn HCnpaBHOCTH, ποσηβΑΟΒ ^ τβηΒΗΟ coeAHHeHHue xoHTaxranepBoro h BTOporo npoMeKyTOtíHoro foam and Taxation βτορογο h TpeTbero npoMeKyTo ^ Horo foam NOA "κηκίΉθΗΜ b uenb οτχηιο ^ βΗΗΗ BuxnxrcaTenH snexTpoABHraTenH, npHweM Me" ny tohxoH coeAHHeHHHKOHTaxTós nepBoro η βτορογο npoMeíxyTo ^ Ihor foam η τοίκοΗ coeAHHeHHH βτορογο η τπβτΒβτοΠρΟΜβΗγΤΟΊΗΟΓΟ foam ΠΟΑΧΑΜΗβΗ ΑΗΟΑ.

Ha Φηγ. 1 noxa3ana cxeMa npennaraeMoro ycTpoňcTBa, conepacaman anfexTpOflBHraTenb i/τραΗαφορΜΑτορω Toxa 2-7, buboau btoph^hux oďmotox 8-19 τρ3ΗσφορΜ3τοροΒ Toxa 2-7, bxoau 20-31δηοκοΒ npeo6pa3OBaTeneň Toxa 32, buxoahi 33-44 čnoxoB npeoópaaoBaTenefl: Toxa 32, noAxmoweHHUeX OAHOHMeHHUM BXOflaM 0a3OCpaBHHBβΚΗίξΗΧ 6AOKOB BUXOAH 46 0a3OCpaBHHBaiOIHHX enoxOB 45, BXOAta 46 φββοαρβΒΗΗΒβίΟΉΗχ βηοκοΒ 45., bxoáu 47 óhokob caMOKOHTponn HCnpaBHOCTH 48, buxoau 496noxa caMOxoHTponH HCnpaBHOCTH .48, ahoabi 5Ό, 51 , bxoah 52 HcnonHHTenbHoro Cnoxa 5_3, AeňcTBy-raiuero Ha οτκηιοΗβΗΗβ sneKTpOABHraTenH 1. 3 235948Ha Φηγ. 1 noxa3ana cxeMa npennaraeMoro ycTpoňcTBa, conepacaman anfexTpOflBHraTenb and / τραΗαφορΜΑτορω Toxa 2-7 buboau btoph ^ Hux oďmotox 8-19 τρ3ΗσφορΜ3τοροΒ Toxa 2-7 bxoau 20-31δηοκοΒ npeo6pa3OBaTeneň Toxa 32 buxoahi 33-44 čnoxoB npeoópaaoBaTenefl: Toxa 32 noAxmoweHHUeX OAHOHMeHHUM BXOflaM 0a3OCpaBHHBβΚΗίξΗΧ 6AOKOB BUXOAH 0a3OCpaBHHBaiOIHHX enoxOB 46 45 46 BXOAta φββοαρβΒΗΗΒβίΟΉΗχ βηοκοΒ 45th, bxoáu 47 óhokob caMOKOHTponn HCnpaBHOCTH 48 buxoau 496noxa caMOxoHTponH HCnpaBHOCTH .48, ahoabi 5Ό, 51, 52 bxoah HcnonHHTenbHoro Cnoxa 53, AeňcTBy raiuero-Ha οτκηιοΗβΗΗβ sneKTpOABHraTenH 1. 3 235948

Ha Φηγ. 2 nOKa3aHH cxeMH οληογο H3 Ďjiokob npeoepa30BaTeneB lOKa 32, οληογο H3 $a3O-CpaBHHBatOIlUtX 0ΛΟΚΟΒ 45 1 Η ΟΛΗΟΓΟ H3 ÓJIOKOB caMOKOHTpOJIH HcnpaBHOCTH 48, Βλοκ npeoepa3OBaTe.neft Tona 32 coflepatHT TpaHcpeaKToptj 54-59, pe3HOTOpu 60-77. Φβ3θ-cpaBHHBaninHň 6ηοκ 45 οοΛβρκκτ ληολη 78-95, pe3ncTOpu 96-101. Ejiok caMOKOHTpOJIH HcnpaBHOCTH48 coflepwHT HByxoSMOTOHHoe Tpexno3HUHOHHoe nonapHSOBaHOe pene 102, pa6onyio oOMOTKy 103ΠΟΠΗρΗ30ΒβΗΗΟΓΟ ρβΠβ 102 , TOpMO3HyK> OCMOTKy 104 ΠΟΛΗρΗ30Β3ΗΗΟΓΟ pene 102 , JieBtjň KOHTaKT 105η /npaBUň κοΗτβκτ 106 ποληρη3οβ3ηηογο pene 102, pe3HCTop 107, cHrHam>Hyio naMny 108.Ha Φηγ. 2 nOKa3aHH cxeMH οληογο H3 Ďjiokob npeoepa30BaTeneB Loka 32 οληογο H3 $ a3O-CpaBHHBatOIlUtX 0ΛΟΚΟΒ 45 1 Η ΟΛΗΟΓΟ H3 ÓJIOKOB caMOKOHTpOJIH HcnpaBHOCTH 48 Βλοκ npeoepa3OBaTe.neft Tona 32 coflepatHT TpaHcpeaKToptj 54-59, 60-77 pe3HOTOpu. 3β3θ-cpaBHHBaninHn 6ηοκ 45 οοΛβρκκτ ληολη 78-95, pe3ncTOpu 96-101. Ejiok caMOKOHTpOJIH HcnpaBHOCTH48 coflepwHT HByxoSMOTOHHoe Tpexno3HUHOHHoe nonapHSOBaHOe foam 102 pa6onyio oOMOTKy 103ΠΟΠΗρΗ30ΒβΗΗΟΓΟ ρβΠβ 102 TOpMO3HyK> OCMOTKy 104 ΠΟΛΗρΗ30Β3ΗΗΟΓΟ foam 102 JieBtjň KOHTaKT 105η / npaBUň κοΗτβκτ 106 ποληρη3οβ3ηηογο foam 102 pe3HCTop 107 cHrHam> Hyio nāmnā 108th

Ha Φηγ. 3 noxaaaHa cxeMa ηοποπηητθπβηογο 6noKa 53, conepxtaniaH pa3MHKaiomHe KOHTara 109pane nojioweHHH "OTKrnoneHO" ΒηεκτροηΒΗΓβτβηΗ 1, 3aMKHyTtae πρκ BKjnoneHHOM nonoaíeHHH BKJitona-TenH sneKTpoflBHraTeJix 1, βμχοληηθ npOMejKyTOHHae pene 110-112 o hx κοητθκτθμη 113, 114, 115cooTBeTCTBeHHO, THpHCTOpa 116-118, pe3HCTopa 119-121, ληολ 122. ycTpoňcTBO paóoTaeT cnenytoulHM o6pa3OM. B HopManBHOM peiKHMe paGOTta 3neKTpoflBnraTenn 1 πρκ προτβκβΗΗΗ lOKa Harpy3KH J. h J . — b o coBnaflaroinnx no φβ3θ b Kawflbie nonnepnona npOMHanieHHOň qacTOTH, npn nono»HTenbHOň nonyBonne,HanpHMep TOKa 0asbi C, nnoflEj 78 h 80 Kaxnoro H3 6jiokob 45 3aKpHTti, no uenoHKaMH 100, 79, 61 h 101, 81, 65 npoTeKaeT tok, η nnoflta 79 h 81 otkputu. Očmotkh 103 Kaxfloro pene 102uiyHTHpytóTCH ^epe3 nonapno οτκρωτΗβ ηΗοηω 78, 80 hjih 79, 81 κ pene 10,2 He cpaĎaTHBaiOT /conpo-THBneHHe pe3HCTopoB 60-77 βο μηογο pa3 MeHbiue conpoTHBneHHH oČmotkh pene 102/. lípu Μβ»^φδ3ΗΗΙΧ ΚΟΡΟΤΚΗΧ 3aMHKaHHHX BHyTpH SJíeKTpOflBHraTeJIH Í TOK CO CTOpOHbl HyneBhúXBHBOflOB Η3ΜβΗΗβΤ φa3y ΠΟ CpaBHeHHIO C TOKOM BBOEa. Ecnn 3TH TOKH HaxOfiHTCH B npOTHBO0a3e,το πρκ nonOHCHTenbHOtt nonyBonHe TOKa, HanpHMep φβ33 C, b KaxmoM 0a3OcpaBHHBaioineM ónoKe nnoflbí78 h 81 6ynyT 3βκρωτΗ, a ηηολη 79 h 80 οτκρωτω. Πο neno^xaM 100, 79., 61 h 100, 80, 646y.neT προτβκθΤΒ tok h myHTHpoBaTb nnona 94, ho TaK KaK ηηοηκι 78 h 81 3aKpHTH, to no ixerin 101,95, 46, 47 103 npoTeKaeT tok.Ha Φηγ. 3 noxaaaHa cxeMa ηοποπηητθπβηογο 6noKa 53 conepxtaniaH pa3MHKaiomHe KOHTara 109pane nojioweHHH "OTKrnoneHO" ΒηεκτροηΒΗΓβτβηΗ 1 3aMKHyTtae πρκ BKjnoneHHOM nonoaíeHHH BKJitona-Tenha sneKTpoflBHraTeJix 1 βμχοληηθ npOMejKyTOHHae foam 110-112 κοητθκτθμη hx of 113, 114, 115cooTBeTCTBeHHO, THpHCTOpa 116-118, 119 pe3HCTopa -121, ληολ 122. ycT least cTBO paoTaeT cnenytoulHM o6pa3OM. B HopManBHOM peiKHMe paGOTta 3neKTpoflBnraTenn 1 πρκ προτβκβΗΗΗ lOKa Harpy3KH J. h J. - bo coBnaflaroinnx no φ 3 3 f f f f n f f f f f »ac ac ac ac h h h h h h h h h h h h h h h h h h h h, 79 h 81 otkputu. The 103 Kaxfloro pene 102uiHHTHpytCH ^ epe3 nonapno 78%, 80 hjih 79, 81 κ pene 10,2 He cpaDaTHBaiOT / conpo-THBneHHe pe3HCTopoB 60-77 pa ο pa 3 H H MeHbiue conpoTHBneHHH kh kh pene 102 /. lime tree Μβ »^ φδ3ΗΗΙΧ ΚΟΡΟΤΚΗΧ 3aMHKaHHHX BHyTpH í KT KT p BH BH BH T K K K K K K CO CO pa pa CpaBHeHHIO C FLOW BBOEa. Ecnn 3TH TOKH HaxOfiHTCH B npOTHBO0a3e, ο 33 33 OH OH OH ony ony ony ony 33 33 33,, 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6. Πο neno ^ xaM 100, 79., 61 h 100, 80, 646y.neT ροτβκθΤΒ flow h myHTHpoBaTb nnona 94, ho TaK KaK ηηοηκι 78 h 81 3aKpHTH, to no ixerin 101,95, 46, 47 103 npoTeKaeT flow.

Pene 102 Kaacnoro θηοκβ 48 cpačaTHBaeT, saMHKaeT cboh npaBtae κοητ3κτη 106 h nepes nnon50 cTaHOBHTcn Ha caMononxBaT, a nepe3 nnon 51 nonaeT nnroc na ynpaBnHwmne ΒΗΒοηω thphctopob116-118, npoMe«yTOHHoe pene 110-112 cpačaTHBawT h cbohmh κοητθκτβμη 113-115 co3naioT nenbHa οτκηκίΗβΗΗβ sneKTponBuraTenn 1. npH ΤρβΧφΒ3ΗΟΜ KOpOTKOM 3aMHKaHHH Ha BHBOnaX 3ηβΚΤρθηΒΗΓβΤβηΗ ΠΡΗ nyCKe, Koma nBHraTenbeme He BpamaeTCH, xoth tok co ctopohh HyneBHx βηβοηοβ sneKTponBHraTenn JL OTcyTCTByeT, HaTpaHcpeaKTopH 55, 57, 59 Ka»noro ónona 32 nonaeTCH nepe3 pesHCTOpH 62, £3, 68, 69, 74, 75HanpH»eHHe c oópaTHHM 3hskom ot TpaHcOopMaTopoB 54, 56, 58 h cpaóaTMBaHne προκοχοηκτ ana-ηΟΓΗΊΗΜΜ o6pa3OM. Πρκ noBpewneHHH onnoro H3 sneMeHTOB 6nOKa npeo6pa3OBaTeneň TOKa 32 hjih φa3OcpaBHHBaI0—mero 6noKa 45 cpa6aTHBaeT 6ηοκ caMOKOHTponn HcnpaBHOCTH 48, ποηκηιοηβΗΗΗΗ Ha Βωχοη HecnpaBHoro6nOKa. CpaóaTtJBaHne 3aiUHTH Ha OTKnro^eHHe sneKTponBHraTenn npii stom He προκσχοηκτ, TaK ksk nnncpaóaTbiBaHHH HcnonHHTenbHOro 6noKa TpeOyeTCH cpaĎaTHBaHHe KaK MHHHMyw nByx φ33θορ3ΒΗΗΒ8ίοΐ4ΗΧϋηοκοΒ 45.Pene 102 Kaacnoro θηοκβ 48 cpačaTHBaeT, saMHKaeT cboh npaBtae κοητ3κτη 106 h nepes nnon50 cTaHOBHTcn Ha caMononxBaT and nepe3 NNoN 51 nonaeT nnroc to ynpaBnHwmne ΒΗΒοηω thphctopob116-118, npoMe «yTOHHoe foam cpačaTHBawT h 110-112 113-115 cbohmh κοητθκτβμη co3naioT nenbHa οτκηκίΗβΗΗβ sneKTponBuraTenn NPH first ΤρβΧφΒ3ΗΟΜ KOpOTKOM 3aMHKaHHH Ha BHBOnaX 3ηβΚΤρθηΒΗΓβΤβηΗ ΠΡΗ nyCKe, coma nBHraTenbeme He BpamaeTCH, XOTH flux as ctopohh HyneBHx βηβοηοβ sneKTponBHraTenn JL OTcyTCTByeT, HaTpaHcpeaKTopH 55, 57, 59 Ka »Noro Onon 32 nonaeTCH nepe3 pesHCTOpH 62, £ 3, 68, 69, 74, 75HanpH »eHHe c oópaTHHM 3hskom ot TpaHcOopMaTopoB 54, 56, 58 h cpaóaTMBaHne προκοχοηκτ ana-ηΟΓΗΊΗΜΜ o6pa3OM. Π κ B B 3 3 n 3 s 3 3 6 3 3 3 h h h h h h h h h h h h — c c c c c Β Β Β Β Β Β Β CpaóaTtJBaHne 3aiUHTH Ha OTKnro ^ eHHe sneKTponBHraTenn npii stom He προκσχοηκτ, TaK knncpaóaTbiBaHHH HcnonHHTenbHOro 6noKa TpeOyeTCH cpaĎaTHBaHHe KaK MHHHMyw nByx φ33θορ3ΒΗΗΒ8ίοΐ4ΗΧϋηοκοΒ 45.

HanpnMep> πρκ OTKa3e Tuna "προϋοΗ" n^ona 78 BHxon 33 ónoxa 32., ΗΒηηιοιηκίίση oflHOBpeMeHHOBHBonoM ΒΤορκ^ΗΟίί oCmotkh TpaHcpeaKTopa 54./ OKaauBaeTcfl HenocpencTBeHHO ποηκηιο^ίβΗΗΗΐΜ b no-nojKHTenbHyw nonyBonHy TOKa ^epe3 nnon 95 κ Bbixony 46 6noKa £5. Πρκ stom οβΜοτκβ 103 čnoKacaMOKOHTponn HcnpaBHOCTH 48 oóTeKaeTCH tokom, pene 102' cpačaTHBaeT h 3aMHKaeT npaBHíi koh~t3kt 106 h ^epea ηκοη 50 cTaHOBHTcn na caMononxBaT, a ^epe3 nnofl 51 iuuoc Ha ynpaBjíHKiiHHft bu-Bon 119 THpHCTopa 116 ncnonHHTenhHoro 6noKa 5£. Πρκ stom 3aropaeTCH CKrHanhHaH nawna 108,cnrHanH3HpyH o no»HOň paóOTe ónona 45, HcnonHHTenbHtaň 6ηοκ 53 He cpačaTbiBaeT. v 235948 4 AHajlOrHHHO npOHCXOflHT ΒΜΗΒΠβΗΗβ nXJĎOfl H3 HeHCnpaBHOCTeft ĎnOXOB 32 HHH £5, BbI3blBaMIHHXnoHBneHHe "nnioca" Ha BHxofle 46. Πρκ ποηβηθηηη Ha Bbixofle 46 cHrnana OTpHuaTenbHOft ποπηρηοοτη, qio cooiBeTciByet, Ha-πρΗΜβρ, "npoĎoxi" HHOaa 95, pane 102 cpaOaTUBaeT, aaMHxaeT cbob neBtaft xoHTaxT 105, η πρκπομοικη oďmotxh 104 CTaHOBHTCH Ha caMonoflXBai, a najma 108 cnrHanH3npyeT o HecnpaBHOMcoctohhhh Ďnoxa 45, 32. BO3BpaT pene 102 προηββοηητοη πγτβΜ BbieMKH HeHcnpaBHoro Ďnoxa 48, xoHCTpyxTHBHO cob-MemeHHoro c ĎnoxoM £5, Hnu OTxmoHeHHeM nHTaHHH ycTpoňCTBa nocne οτχηωηβΗΗΗ nOBpewfleHHOrosneKTpOABHraTenn. Πρκ saMeHe HeHcnpaBHoro Ďnoxa saiuHTa H3 neftcTBHH He bhbobhtch. ΠρΗ HeonpaBHOCTH ĎnoxoB 32 Hnn 45 saiUHTa ocTaeTCH paĎOTOcnocoĎHOft.HanpnMep> πρκ OTKa3e Tuna "προϋοΗ" n ^ she BHxon 78 33 32. ónoxa, ΗΒηηιοιηκίίση oflHOBpeMeHHOBHBonoM ΒΤορκ ^ ΗΟίί oCmotkh TpaHcpeaKTopa 54./ OKaauBaeTcfl HenocpencTBeHHO ποηκηιο ίβΗΗΗΐΜ b ^ no-nojKHTenbHyw nonyBonHy Tokai-epe3 NNoN 95 κ 46 Bbixony 6noKa £ fifth Πρκ one hundred meters οβΜοτκβ 103 čnoKacaMOKOHTponn HcnpaBHOCTH 48 oóTeKaeTCH flow, the foam 102 'cpačaTHBaeT h 3aMHKaeT npaBHíi Koh t3kt ~ 106 h ^ EPEA ηκοη cTaHOBHTcn on caMononxBaT 50, and 51 ^ epe3 nnofl iuuoc Ha ynpaBjíHKiiHHft butyl-Bon 119 116 THpHCTopa ncnonHHTenhHoro 6noKa £ 5. Πρκ stom 3aropaeTCH CKrHanhHaH nawna 108, cnrHanH3HpyH o no »Hoň paóote ónona 45, HcnonHHTenbHtaň 6ηοκ 53 He cpačaTbiBaeT. 4 235 948 in AHajlOrHHHO npOHCXOflHT ΒΜΗΒΠβΗΗβ nXJĎOfl H3 HeHCnpaBHOCTeft ĎnOXOB 32 HHH £ 5 BbI3blBaMIHHXnoHBneHHe "nnioca" BHxofle Ha Ha 46. Πρκ ποηβηθηηη Bbixofle 46 cHrnana OTpHuaTenbHOft ποπηρηοοτη, qio cooiBeTciByet, Ha-πρΗΜβρ "npoĎoxi" HHOaa 95, Mr 102 cpaOaTUBaeT, aaMHxaeT cbob neBtaft xoHTaxT 105 104 η πρκπομοικη oďmotxh CTaHOBHTCH caMonoflXBai Ha, and in particular about 108 cnrHanH3npyeT HecnpaBHOMcoctohhhh Ďnoxa 45, 32. BO3BpaT foam 102 προηββοηητοη πγτβΜ BbieMKH HeHcnpaBHoro Ďnoxa 48 xoHCTpyxTHBHO cob-c MemeHHoro ĎnoxoM £ 5 HNU OTxmoHeHHeM nHTaHHH ycTpoňCTBa nocne οτχηωηβΗΗΗ nOBpewfleHHOrosneKTpOABHraTenn . Πρκ saMeHe HeHcnpaBHoro Dnoxa saiuHTa H3 neftcTBHH He bhbobhtch. ΠρΗ HeonpaBHOCTH ĎnoxoB 32 Hnn 45 saiUHTa ocTaeTCH paĎOTOcnocoĎHOft.

TaxHM oĎpa3OM, npejpiaraeMoe ycTpoňcTBO očnanaeT Ďonee Bbicoxofl HanejKHOcTbfo, tom ana-norHHHHe, Tax xax HMeeT caMoxoHTponb HcnpaBHOCTH, npocioe oĎcnywHBaHHe h peannsyeTCH HaBneMeHTax, BHnycxaeMHX npoMunineHHOcThio.TaxHM β 1, p ara c BO BO BO BO BO BO BO BO b b b b b b b b b b b b b b b b b b b b b b b b b b b ee ee,,,, B B B B B B B B B B B B B B B B B B B.

OOPMyjIA H3OEPETEHHH 1. yoTpoňcTBO ηπη nH$®epeHUHantHO-®a3HOB 3amHTH snexTpoflBHraTenH, coflepxtainee τρβΗσφορ-MaToptj Toxa nnn Kaxppň φ33α co ctopohh ββοαοβ πητβηηη h HyneBHX bubobob, βτορηηηηθ oďmotxhxotophx nonxnraneHH x BxonaM 6noxa npeoĎpaaoBaTeneft Toxa, bhxosh χοτοροΓο - x BXOflaM φθ3θ-cpaBHHBaxnuero 6noxa, bhxoh nocneflHero οβηβθη c βχοπομ HcnonHHTenbHoro opraHa, a BHXOflHcnonHHTenbHoro opraHa BxnmneH b flenb οτχηιοηβΗΗΗ anexŤpoflBHraTenH, OTnHHawineecH τβΜ, hto, c Henaio odecneneHHH caMoxoHTponn HcnpaBHOCTH η ποβηβιθηηη sane«Hocra, b Hero flononHHTenbHOBBeneHH flBa Ďnoxa npeoĎpasosaTeneft Toxa, bxohh xotophx BxmoneHH nocnenoBaTenbHO c βχοαβμηBbniieynoMHHyToro Ďnoxa npeoĎpa3osaTeneft Toxa, a bhxoah nonxníoHeHH x BxonaM flByx flononHH-TenbHO bBenehhx íaaocpaBHHBaiotUHX ĎnoxoB, ββιχοπηι xaxfloro ®a3ocpaBHHBai0inero Ďnoxa noflxníoye-Hbi x Bxony onHoro H3 Tpex bhobb BBefleHtix ĎnoxoB caMoxoHTponn ηοπρθβηοοτη, a staxoflu nocnefl-hhx - x Bxony HcnonHHTenbHoro oprana. 2. ycTpoňcTBO no π. 1, oTflHnaxnueecH ιθΜ, hto xaxnbift H3 ĎnoxoB caMoxoHTponn HcnpaBHOCTHcoflepwHT TpexnoaHUHOHHOe nonnpn30EaHHoe pene, Hanano paĎoneň oďmotxh χοτοροΓο noflxnwneHo x bmxony cooTBeTCTByxnaero Φββοορηβηηββιοιιιθγο Ďnoxa, xoHeu paĎoneft oďmotxh h Hanano topmoshoB oďmotxh - x MHHycy HCTOHHHxa πητβηηη, xoHeu topmoshoB oďmotxh - x neBOMy xoHTaKTy TpexnoaHUHOHHorononnpH3OBaHHoro pene, Hxopb χοτοροΓο nepe3 pesncTOp h cHrHanbHyxi naMny - x nnx>cy HCTOHHHxanHTaHHH, npaBHit xoHTaxT nepea ahoa - x Bxony HcnonHHTenbHoro opraHa h x sxony Ďnoxa caMO-xOHTponn HcnpaBHOCTH. 3. ycTpoňcTBO no π. 1, OTHHHammeecH ιθμ, ητο HcnonHHTenbHHň opraH conepjKHT ίρκ npoMewy-tohhhx pene, oj»ih βηβοπ oďmotxh xawfloro H3 hhx nonxmoneH nepe3 pa3MHxax>mHe χοητθχτη penenonojneHHH "OTxníoyeHo" BHxmoHaTenH anexTpoflBHraTenH x nniocy HCTOHHHxa nHTaHHH, a Biopoftβηβοπ xaJKfloro npoMewyToiHoro pene nonxnxmeH nepea οπηη H3 ipex flononHHTentHax ΤΗρΗοτορΟΒ x MHHycy HCTOHHHxa ňHTaHHH, ynpaBnHxnnHň βηβοπ xaxcfloro THpHCTOpa coeflHHeH yepea pesHCTopc βηχοπομ Ďnoxa caMOxoHTponH ηοπρθβηοοτη, nocnenoBaTenbHO coenHHeHHHe xoHiaxm nepBOro h bto-poro npOMeníyTOHHOro pene, a Tane βτορογο h TpeTbero npoMencyTOHHoro pene nonxnxmeHH b uenbοτχηκιΗεΗΗΗ BHxníoHaTenH snexTpoflBHraTena, npnneM MeiKfly tohxoH coeflHHeHHH KOHiaxioB nepsoroη βτορογο npoMeiKyTOHHoro pene H tohxoB coeflHHeHHH BTOporo h TpeTbero npoMewyTOHHoro penenoflxníoHeH πηοπ.OOPMyjIA H3OEPETEHHH first $ nH yoTpoňcTBO ηπη ®epeHUHantHO-®a3HOB 3amHTH snexTpoflBHraTenH, coflepxtainee τρβΗσφορ-MaToptj Toxa nnn Kaxppň φ33α what ctopohh ββοαοβ πητβηηη h HyneBHX bubobob, βτορηηηηθ oďmotxhxotophx nonxnraneHH x BxonaM 6noxa npeoĎpaaoBaTeneft Toxa, bhxosh χοτοροΓο - x-BXOflaM φθ3θ cpaBHHBaxnuero 6noxa , bhxoh nocneflHero οβηβθη c βχοπομ HcnonHHTenbHoro Oprah and BHXOflHcnonHHTenbHoro Oprah BxnmneH b flenb οτχηιοηβΗΗΗ anexŤpoflBHraTenH, OTnHHawineecH τβΜ, HTO c Henaio odecneneHHH caMoxoHTponn HcnpaBHOCTH η ποβηβιθηηη san "HOCR b Hero flononHHTenbHOBBeneHH FLBA Ďnoxa npeoĎpasosaTeneft Toxa, bxohh xotophx BxmoneHH nocnenoBaTenbHO c βχοαβμηBbniieynoMHHyToro Ďnoxa npeoĎpa3osaTeneft BxonaM flByx flononHH-TenbHO bBenehhx aaaocpaBHHBaiotUHX xo xo, ax ax ax ax ax ax ax ax ax ax ax x x x x x x x x x x BefleHtix DnoxoB caMoxoHTponn ηοπρθβηοοτη, and staxofl nocnefl-hhx - x Bxony HcnonHHTenbHoro support. 2. ycT leastcBO no π. 1 oTflHnaxnueecH ιθΜ, HTO xaxnbift H3 ĎnoxoB caMoxoHTponn HcnpaBHOCTHcoflepwHT TpexnoaHUHOHHOe nonnpn30EaHHoe foam, Hanano paĎoneň oďmotxh χοτοροΓο noflxnwneHo x bmxony cooTBeTCTByxnaero Φββοορηβηηββιοιιιθγο Ďnoxa, xoHeu paĎoneft oďmotxh h Hanano topmoshoB oďmotxh - x MHHycy HCTOHHHxa πητβηηη, xoHeu topmoshoB oďmotxh - x neBOMy xoHTaKTy TpexnoaHUHOHHorononnpH3OBaHHoro foam, Hxopb CTOHτbρxi nep nepxixixixixixixixixixixixixixixixixinynynynynynynynynynynyny nyοH xxixi x x x x x x x x x x x x x x x x xx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx. 3. ycT leastcBO no π. 1 OTHHHammeecH ιθμ, ητο HcnonHHTenbHHň Oprah conepjKHT ίρκ npoMewy-tohhhx foam, oj »ih βηβοπ oďmotxh xawfloro H3 HHX nonxmoneH nepe3 pa3MHxax> MHE χοητθχτη penenonojneHHH" OTxníoyeHo "BHxmoHaTenH anexTpoflBHraTenH x nniocy HCTOHHHxa nHTaHHH and Biopoftβηβοπ xaJKfloro npoMewyToiHoro foam nonxnxmeH NEP οπηη H3 IPEX flononHHTentHax ΤΗρΗοτορΟΒ x MHHycy HCTOHHHxa ňHTaHHH, ynpaBnHxnnHň βηβοπ xaxcfloro THpHCTOpa coeflHHeH yepea pesHCTopc βηχοπομ Ďnoxa caMOxoHTponH ηοπρθβηοοτη, nocnenoBaTenbHO coenHHeHHHe xoHiaxm nepBOro h BTO-poro npOMeníyTOHHOro foam and Tane βτορογο h TpeTbero npoMencyTOHHoro foam nonxnxmeHH b uenbοτχηκιΗεΗΗΗ BHxníoHaTenH snexTpoflBHraTena, npnneM MeiKfly tohxoH coeflHHeHHH KOHiaxioB nepsoroη βτορογο npoMeiKyTOHHoro pene H toxB coefHHeHHH BTOporo h TpeTbero npoMewyTOHHoro penenoflxniHeH πηοπ.

Claims

5 235948 UCTO ^ HHKH HH <í> OpMaUHH, npHHHTHe BO ΒΗΗΜβΗΜβ ΠρΗ ΠρΟΒβΒβΗΗΗ 3Κ0ΠβρΤΗ3Η!

1. Ποληκοβ Β. Ε., Knenenb Μ. £. "JIorHVecxiííí cnHTe3 cxeM ueHTpann30BaHHHX ycTpoucTBaamHTbi sneKTpoBBHraTejin", β3βθοτηη BV3ob CCCP, "3jieKTpOMexaHHKa", line 7, 1976.

2. ABTOpcKOe cbhxegtGJibCTBO CCCP W 599 309, H02H 7/08, 1976. AHHOTAltfifl KaoPpeTeHHe othochtchek peneňHOfl 3auuiTH. c poň BO jih jih jih jih jih 0 0 0 0 0 0 0 0 jih jih jih jih 0 0 0 x «« «« 30 30 30 30 30 30 30 30 30 30 30 «Noene« Hero cBHsau cbxo ~ flOM HCnOJIHHTenbHOrO abandoned, SKJIW ^ eHHOrO B «βΠΒ ΟΤΧΗΙΟΊβΗΗΗ 3JieKTpO« BHraTeJIH. Hobh3H3 3aKJ7fO <2aeTCH bto, ^ BBe «eHhi« Ba 6 «oxaPeFaTaTaTaTaTaCaTaHHHHHhieCHbHbH BB6« £ HHbIMH $ a3OCpaBHHBai0IHHMH DJIOKaMK, nO «K« K) HeHHfcOMH KO «HOMs H3 6ρβΧ BB6 «6HHt3X CjIOKOB σβBHρΟΛΗ HCnpaBHOCTH, BHXOflhl KOTOpWX ΠΟ« ~ Kjno ^ íeHfcj κ HcnojiHHTejibHOMy opraHy. SUMMARY OF THE INVENTION

1. An electromotor comparative phase protection device comprising a current transformer for each phase on the power input side and zero terminals, the secondary windings of which are connected to the inputs of the current converter block, its outputs to the block equalization inputs, output of the block to the input of the work gear and the output of the working mouth to the electric motor shut-off circuit is characterized in that in order to ensure self-supervision and to increase reliability, two current exchanger blocks are connected in the device, the inputs of which are connected in series with the inputs of the aforementioned converter block and the outputs are connected to the inputs the two additionally connected phase comparison blocks, the outputs of each phase comparison block to the input of one of the three newly connected fault-free self-monitoring blocks and the outputs of the blocks to the input of the working device.

2. Apparatus according to claim 1, wherein each of the self-test blocks comprises a three-position polarized relay whose start winding is connected to the output of the respective phase comparison block, the end of the working winding and the start of the brake winding to the left contact. a three-position polarized relay, the anchor of which is a surge suppressor and a signal lamp connected to the positive pole of the power supply, right-hand contact to the input of the working gear and to the input of the self-check block of the faultless state.

3. The device according to item 1, characterized in that the working device comprises three inserts, one of each of them is connected to the positive terminal of the power supply via the disconnecting contacts of the relay in the position "Disconnected" of the electric motor switch and the second terminal of each inserted the relay through one of the three additional thyristors connected to the negative pole of the power supply, the control terminal of each thyristor via the resistor 8 through the output of the self-check block of the fail-safe, the series-connected contacts of the first and second intermediate relays as well as the second and third relays on the disconnector circuit of the electric motor switch, the point of contact connection between the first and second intermediate relays and the junction point of the second and third intermediate relays is a wired diode Recognized by the invention based on the results of the expert review by the State Committee for Inventions and Discoveries of the USSR, Moscow, SU 3 drawings