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SU540323A1 - Device for protection against earth faults in a three-phase network - Google Patents

Device for protection against earth faults in a three-phase network

Info

Publication number
SU540323A1
SU540323A1 SU1811573A SU1811573A SU540323A1 SU 540323 A1 SU540323 A1 SU 540323A1 SU 1811573 A SU1811573 A SU 1811573A SU 1811573 A SU1811573 A SU 1811573A SU 540323 A1 SU540323 A1 SU 540323A1
Authority
SU
USSR - Soviet Union
Prior art keywords
phase network
protection against
earth faults
against earth
transformer
Prior art date
Application number
SU1811573A
Other languages
Russian (ru)
Inventor
Георгий Андреевич Генрих
Леонид Алексеевич Никонец
Петр Романович Хрущ
Юрий Амброзиевич Кенс
Original Assignee
Львовский Ордена Ленина Политехнический Институт
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.)
Filing date
Publication date
Application filed by Львовский Ордена Ленина Политехнический Институт filed Critical Львовский Ордена Ленина Политехнический Институт
Priority to SU1811573A priority Critical patent/SU540323A1/en
Application granted granted Critical
Publication of SU540323A1 publication Critical patent/SU540323A1/en

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  • Emergency Protection Circuit Devices (AREA)

Description

При (внутренних повреждени х вьипр мител  И лр-и коротких замыкани х в цепи выпр мленного така сумма фа1зных TOIKOIB выПр м ител  равна нулю. Эти-м обеопечвваетс  селективность работы защиты.In case of internal faults in case of short circuits in a straightened circuit, such a sum of nominal TOIKOIB power meters is zero. This also ensures the selectivity of the protection operation.

Claims (1)

Формула изобретени Invention Formula УстроЙ1СТ1ВО дл  защиты от замыканий на землю IB трехфазной сети, содержащее трансформатор тока нулевой последовательности, к вторичной обмотке которого подключен реагирующий орган, отличающеес  тем, что, с целью по ВЫ1шенИ  его чувствительности при работе е сет х параллельно с высоковольтным неуправл емым выпр мителем, в .качестве трансформатора TOiKa применен магиитный усилитель, в выходную обмотку которого включен посторонний источник тока.Device for earth fault protection IB of a three-phase network, containing a zero-sequence current transformer, to the secondary winding of which a reacting element is connected, characterized in that with the aim of its sensitivity AND when it operates in parallel with a high-voltage uncontrolled rectifier, In the TOiKa transformer, a magnitude amplifier was applied, in the output winding of which an external current source is included. К распределительной сетиTo distribution network
SU1811573A 1972-07-17 1972-07-17 Device for protection against earth faults in a three-phase network SU540323A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1811573A SU540323A1 (en) 1972-07-17 1972-07-17 Device for protection against earth faults in a three-phase network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1811573A SU540323A1 (en) 1972-07-17 1972-07-17 Device for protection against earth faults in a three-phase network

Publications (1)

Publication Number Publication Date
SU540323A1 true SU540323A1 (en) 1976-12-25

Family

ID=20522194

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1811573A SU540323A1 (en) 1972-07-17 1972-07-17 Device for protection against earth faults in a three-phase network

Country Status (1)

Country Link
SU (1) SU540323A1 (en)

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