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Electrical Network Protection-Current relay

Name:JT3 current relays

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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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