RU2003107388A - DEVICE FOR PROTECTING AGAINST CIRCUIT TO EARTH AND MONITORING RESISTANCE OF AC ELECTRICAL INSTALLATION - Google Patents

DEVICE FOR PROTECTING AGAINST CIRCUIT TO EARTH AND MONITORING RESISTANCE OF AC ELECTRICAL INSTALLATION

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Publication number
RU2003107388A
RU2003107388A RU2003107388/28A RU2003107388A RU2003107388A RU 2003107388 A RU2003107388 A RU 2003107388A RU 2003107388/28 A RU2003107388/28 A RU 2003107388/28A RU 2003107388 A RU2003107388 A RU 2003107388A RU 2003107388 A RU2003107388 A RU 2003107388A
Authority
RU
Russia
Prior art keywords
transformer
isolation
winding
rectifier
protecting against
Prior art date
Application number
RU2003107388/28A
Other languages
Russian (ru)
Other versions
RU2239269C1 (en
Inventor
Роберт Александрович Вайнштейн
Вера Васильевна Шестакова
Святослав Михайлович Юдин
Original Assignee
Томский политехнический университет
Filing date
Publication date
Application filed by Томский политехнический университет filed Critical Томский политехнический университет
Priority to RU2003107388/28A priority Critical patent/RU2239269C1/en
Priority claimed from RU2003107388/28A external-priority patent/RU2239269C1/en
Publication of RU2003107388A publication Critical patent/RU2003107388A/en
Application granted granted Critical
Publication of RU2239269C1 publication Critical patent/RU2239269C1/en

Links

Claims (1)

Устройство для защиты от замыкания на землю и контроля сопротивления изоляции электроустановки переменного тока, содержащее источник переменного напряжения, разделительный трансформатор, последовательно соединенные измерительный орган защиты с исполнительным блоком и орган контроля изоляции, при этом орган блокировки своим выходом подключен к блокирующим входам измерительного органа защиты с исполнительным блоком и органа контроля изоляции, выпрямитель подключен ко вторичной обмотке разделительного трансформатора, а также шунтирующий конденсатор, параллельно которому включен разрядник, отличающееся тем, что в него дополнительно введен разделительный трансформатор тока, первичная обмотка которого включена в цепь между вторичной обмоткой разделительного трансформатора и выпрямителем, а последовательно соединенные измерительный орган защиты с исполнительным блоком и орган контроля изоляции подключены ко вторичной обмотке разделительного трансформатора тока, причем первичная обмотка разделительного трансформатора подключена к источнику переменного напряжения, орган блокировки подключен ко вторичной обмотке разделительного трансформатора, шунтирующий конденсатор подключен к выходу выпрямителя.A device for protecting against earth faults and monitoring the insulation resistance of an electrical installation of alternating current, containing an alternating voltage source, an isolation transformer, a measuring protection body connected in series with an actuating unit and an insulation monitoring body, while the locking body with its output is connected to the blocking inputs of the measuring protection body with the executive unit and the insulation control body, the rectifier is connected to the secondary winding of the isolation transformer, as well as the shunt a capacitor in parallel with which a surge arrester is connected, characterized in that an isolation current transformer is additionally introduced into it, the primary winding of which is connected to the circuit between the secondary winding of the isolation transformer and the rectifier, and the measuring protective organ in series with the actuator unit and the insulation monitoring organ are connected to the secondary a winding of an isolation current transformer, the primary winding of an isolation transformer connected to an AC voltage source eniya, the locking body is connected to the secondary winding of the isolating transformer, a shunt capacitor connected to the output rectifier.
RU2003107388/28A 2003-03-17 2003-03-17 Earth fault protection and ac electric power unit isolation resistance control device RU2239269C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2003107388/28A RU2239269C1 (en) 2003-03-17 2003-03-17 Earth fault protection and ac electric power unit isolation resistance control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2003107388/28A RU2239269C1 (en) 2003-03-17 2003-03-17 Earth fault protection and ac electric power unit isolation resistance control device

Publications (2)

Publication Number Publication Date
RU2003107388A true RU2003107388A (en) 2004-09-10
RU2239269C1 RU2239269C1 (en) 2004-10-27

Family

ID=33537735

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2003107388/28A RU2239269C1 (en) 2003-03-17 2003-03-17 Earth fault protection and ac electric power unit isolation resistance control device

Country Status (1)

Country Link
RU (1) RU2239269C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3007844B1 (en) * 2013-06-26 2015-07-17 Schneider Electric Ind Sas DEVICE FOR ESTIMATING THE IMPEDANCE OF AN EARTH ELECTRICAL CONNECTION, ESTIMATING METHOD AND POWER SUPPLY SYSTEM THEREFOR
RU2646219C1 (en) * 2016-11-17 2018-03-02 Общество с ограниченной ответственностью Научно-производственное предприятие "ЭКРА" Device for protecting against fault to ground and controlling insulation resistance of alternating current electric plant

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