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Electrical Network Protection-Current relay

Name:JT3 current relays

Electrical Network Protection-Current relay

Description

JT3 series DC electromagnetic relays used mainly for DC 440 V and below, power transmission control system, as a voltage (or middle), current and time relay purposes; derived double-coil relays, has a unique performance, the application of Electrical interlock variety of automatic control systems, enables system stability and reliable,therefore in the power transmission automatic control systems, widely selected as a relay between the time or intermediate.

Specification

	Current relay	Voltage relay	Time relay
Type	JT3-□□/A	JT3-□□L	JT3-□□/1/3/5
Setting value	1．5, 5, 10, 25, 50, 100, 150, 300, 600A	12, 24, 48, 110, 220, 440V	1:0.3~0.9s 2: 0.8~3s 3: 2.5~5s
Adjustable parameter range	Pull-in circuit 30~60%Ie Release circuit 10~20%Ie	Pull-in voltage 30~50%Ue Release voltage 7~20%Ue
Contact form	1H 1D 2H 2D 3H 1D (can free-combination)
Cousumed power(W)	20W 16W
Standrad error	±10%

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