SU28951A1

SU28951A1 - Device to protect the synchronous generator from improper inclusion when synchronizing it with the network

Info

Publication number: SU28951A1
Application number: SU83687A
Authority: SU
Inventors: В.А. Кержакович
Original assignee: В.А. Кержакович
Filing date: 1931-02-18
Publication date: 1933-01-31

Description

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щита будет вновь подготовлена .к действию ,the shield will be re-prepared. to action,

. Недостатка вторичной подачи импульса на включающую катушку р}бильника, при повторном включении генератора, также не будет, ибо контакты / будут разомкнуты .. There is also no lack of a secondary impulse supply to the switching coil p} of the switch, when the generator is turned on again, because the contacts / will be open.

Если же генератор оказалс правильно включенным на параллельную работу, то вес защитное устройство автоматически выводитс из действи .If the generator turned out to be correctly turned on for parallel operation, then the weight of the protective device is automatically taken out of action.

По включении масл носо выключател контакты Е на его валу замыкаютс и цепь катушки реле времени РВ при посредстве дополнительных контактов С оказываетс замкнутой.When the oil switch is turned on, the contacts E on its shaft close and the coil circuit of the time relay RV by means of additional contacts C is closed.

Если генератор приключен к сети неправильно , то максимальное мпгопенное реле выбьет масл ный выключатель, чем цепь катушкп реле времени будет разорппна .If the generator is adventurous to the network incorrectly, then the maximum relay will knock out the oil switch, than the circuit of the time relay coil will be untapped.

В случае правильного приключени генератора катушка реле времени обтекаетс током в течение того времени, на которое оно установлено, например, на 0,5-f-1,0 сек, по истечении которого реле времени замкнет свои контакты, отчего выключающа обмотка О/. разомкнет рубильник АIn the case of the correct advent of the generator, the time relay coil flows around the current during the time it is set to, for example, 0.5-f-1.0 sec, after which the time relay will close its contacts, causing the O / off winding. opens switch A

Предмет изобретени .The subject matter of the invention.

Claims

1. Device to protect the synchronous generator from improper switching on when synchronizing it with the network using the maximum current relay, characterized in that in order to switch on the maximum relay before turning off the oil switch and turn off the specified relay when the generator is properly connected to the network, a relay with two Bp and Opt windings, of which Bp winding serves to turn on the maximum PMM relay when the operating circuit of the oil switch is closed, which has a larger I1 hertznnep than the Bp, Op relay, and the winding Op It is intended to switch off the RMM relay after a set period of time with the help of the RV relay with a time delay that is switched on simultaneously with the RMM relay with the help of the winding BP.

2. In the device according to claim 1, applied to the maximum PMM relay, operating at a current value constituting some part of the normal operating current of the Generator.