FIELD: electricity.
SUBSTANCE: increase in current passing through the connection switch is fixed up to the value exceeding switching capacity of the switch, the connection is shunted, then the switch is switched off and the connection is deshunted. After the above fixation action of the relay protection on the switch is locked, its disconnection and deshunting of the connection is made after testing of shunting current availability and non-availability of current passing through the switch respectively.
EFFECT: reducing maximum current value in emergency connection, reducing time of short-circuit current existence and limiting transient recovery voltage values.
1 dwg
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