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SU819747A1 - Device for measuring insulation resistance of three-phase electric network with insulated neutral - Google Patents

Device for measuring insulation resistance of three-phase electric network with insulated neutral Download PDF

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Publication number
SU819747A1
SU819747A1 SU772538280A SU2538280A SU819747A1 SU 819747 A1 SU819747 A1 SU 819747A1 SU 772538280 A SU772538280 A SU 772538280A SU 2538280 A SU2538280 A SU 2538280A SU 819747 A1 SU819747 A1 SU 819747A1
Authority
SU
USSR - Soviet Union
Prior art keywords
insulation resistance
phase electric
electric network
measuring insulation
insulated neutral
Prior art date
Application number
SU772538280A
Other languages
Russian (ru)
Inventor
Евгений Алексеевич Иванов
Евгений Андреевич Калязин
Владимир Давыдович Дудник
Леонид Иванович Гребенников
Георгий Иванович Китаенко
Анатолий Ионович Митников
Валентин Дмитриевич Рубинович
Юрий Аркадьевич Шестопалов
Original Assignee
Ленинградский Ордена Ленина Электро-Технический Институт Им. B.И.Ульянова (Ленина)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Ленинградский Ордена Ленина Электро-Технический Институт Им. B.И.Ульянова (Ленина) filed Critical Ленинградский Ордена Ленина Электро-Технический Институт Им. B.И.Ульянова (Ленина)
Priority to SU772538280A priority Critical patent/SU819747A1/en
Application granted granted Critical
Publication of SU819747A1 publication Critical patent/SU819747A1/en

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Description

54) УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ СОПРОТИВЛЕНИЯ ИЗОЛЯЦИИ ТРЕХФАЗНЫХ ЭЛЕКТРИЧЕСКИХ СЕТЕЙ С ИЗОЛИРОВАННОЙ НЕЙТРАЛЬЮ54) DEVICE FOR MEASURING THE RESISTANCE OF THE ISOLATION OF THREE-PHASE ELECTRIC NETWORKS WITH ISOLATED NEUTRAL

1one

Изобретение относитс  к электроизмерительной технике и предназначено дл  измерени  и контрол  сопротивлени  изол ций электрических се .тей переменного тока, изолированных от земли (корпуса) , и может быть использовано при измерении сопротивлени  изол ций сети, к которой подключены пот упроводниковые преобрагэователи (выпр .мители) дл  питани  силовых потребителей посто нного тока непосредственно от сети переменного тока (гребные электродвигате и и палубные механизмы на судах, т говые электродвигатели в горной промышленности).The invention relates to electrical measuring equipment and is designed to measure and monitor the insulation resistance of electrical ac networks, isolated from the ground (housing), and can be used to measure the insulation resistance of a network to which sweat conductor converters are connected. for powering direct current consumers directly from the AC network (propeller motors and deck mechanisms on ships, traction motors in the mining industry).

Известно устройство дл  измере-ни  сопротивлени  .избл ции трехфазных сетей переменного тока, со,держащее последовательно соединенные источник посто нного тока, измерительный прибор, добавочный резистор и индуктивный фильтр Щ.A device is known for measuring the resistance of three-phase ac networks, co-holding a series-connected direct current source, a measuring device, an additional resistor, and an inductive filter Š.

Величина посто нного тока (протекаоощего через измерительшлй прибор ) определ етс  как отношение напр жени  к сумме величин добавоч ,ного сопротивлени  и эквивалентного сопротивлени  изол ции сети,.The amount of direct current (flowing through a measuring device) is defined as the ratio of the voltage to the sum of the values of the additional resistance and equivalent resistance of the network insulation.

т.е. ток есть функци  сопротивлени  изол ции.those. the current is an insulation resistance function.

Однако в сет х переменного тока , содержащих полупроводниковые преобразователи напр жени , имеетс  гальваническа  св зь с цеп ми посто нного тока, что приводит к по влению между каждой фазой и землейHowever, in AC networks containing semiconductor voltage converters, there is a galvanic connection to the DC circuits, which results in appearance between each phase and ground

посто нного напр жени  и Дог,, величина которого дл  трехфазной сети определ етс  выраж;ениемconstant voltage and dog ,, the value of which for a three-phase network is determined by the expression;

3U«A R2-R. (..3U "A R2-R. (..

..

иand

 ЛL

АОП 2ft R.AOP 2ft R.

R,R,

амплитуда линейного напр . жени  сети переменного  linear amplitude ex. network alternating

тока;current;

Claims (2)

1.Цапенко Е, Ф. Контроль изол ции в сет х до 1000 ВтМ.: Энерги , 1972, с.85.1. Tsapenko E, F. Isolation control in networks up to 1000 WM: Energie, 1972, p.85. 2.Цапенко Е. Ф. Контроль изол ции в сет х до 1000 В.-М. Энерги , 1972, с. 57-58.2. Tsapenko EF. Isolation control in networks up to 1000 V.-M. Energy, 1972, p. 57-58. ШЁ1ШЁ1 ШРSR
SU772538280A 1977-10-28 1977-10-28 Device for measuring insulation resistance of three-phase electric network with insulated neutral SU819747A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772538280A SU819747A1 (en) 1977-10-28 1977-10-28 Device for measuring insulation resistance of three-phase electric network with insulated neutral

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772538280A SU819747A1 (en) 1977-10-28 1977-10-28 Device for measuring insulation resistance of three-phase electric network with insulated neutral

Publications (1)

Publication Number Publication Date
SU819747A1 true SU819747A1 (en) 1981-04-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU772538280A SU819747A1 (en) 1977-10-28 1977-10-28 Device for measuring insulation resistance of three-phase electric network with insulated neutral

Country Status (1)

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SU (1) SU819747A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2614187C1 (en) * 2015-12-17 2017-03-23 Общество с ограниченной ответственностью Научно-производственное предприятие "ЭКРА" Determination method of the circuit insulation resistance and insulation resistance of the joined alternating current circuit with insulated neutral

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2614187C1 (en) * 2015-12-17 2017-03-23 Общество с ограниченной ответственностью Научно-производственное предприятие "ЭКРА" Determination method of the circuit insulation resistance and insulation resistance of the joined alternating current circuit with insulated neutral

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