---High Accuracy Secondary Current Injection Intelligent Testing Instrument,Power System Protection Relay Tester 

1. Testing of all individual components in the secondary dispatch (current, voltage, time, differential, balance, negative sequence, distance, power direction, inverse time limit, frequency, synchronization, Re-closing and other relays).

2. the entire group of transmissions can simulate various simple or complex transient, permanent, and transitional faults, and can superimpose transient DC components on the fundamental wave.

3. Various harmonics can be superimposed at will, and the superposition initial angle and content can be controlled online.

4. It can output different frequency alternating currents in phases, and can be used for both AC and DC.

5. Dedicated low-cycle unit, convenient to test the low-cycle low-voltage load shedding protection of the microcomputer.

6. Automatic scanning of various protection time characteristics. Scanning of power and impedance protection characteristic curves.

7. Automatic test of the differential ratio and harmonic restraint characteristics of the microcomputer main transformer protection.

8. the entire set of distance, zero sequence, and over-current protections are automatically tested.

9. the user can program the test unit to meet the special test purpose, such as the test of self-input device.

10. Various protection tests such as loss of excitation and synchronization, reverse excitation, reverse power and synchronization of the motor.

 

GDJB-PC Specification

     ---High Accuracy Secondary Current Injection Intelligent Testing Instrument,Power System Protection Relay Tester 

Items	Specifications
Alternating Current(AC) output
Output accuracy	0.5magnitude
Phase current output (effective value)	0~40A
Three parallel phase current output (effective value)	0~120A
Phase current value with long time under permission (effective value)	10A
Phase current maximum power output	420VA
Three parallel phase current maximum power output	900VA
Three parallel phase current maximum work time	10s
Frequency range (base wave)	20~1000Hz
Harmonic frequency number	1~20 time
Direct Current(DC) output
Output accuracy	0.5magnitude
Current output	0 ~ ± 10 A/each phase 0 ~ ± 30 A/every three parallel
Maximum output of load voltage	20v
Alternating Voltage output
Output accuracy	0.5magnitude
Phase voltage output (RMS)	0 ~ 120v
Line voltage output (RMS)	0 ~ 240v
Phase voltage/line voltage power output	80VA/100VA
Frequency range (base wave)	20 ~ 1000Hz
Harmonic frequency number	1 ~ 20 times
Direct voltage output
Output accuracy	0.5magnitude
Phase voltage output amplitude	0 ~ +160v
Line voltage output amplitude	0 ~ + 320v
Phase voltage/line voltage power output	70VA/140VA
the switch quantity and time measurement
Switch parameters input	7 ways; Empty contact: 1~20mA, 24v Power contact access: " 0":0~ +6V; " 1":+11 V ~ +250V
Switch parameters output	2 couples  DC:220V/0.2A;   AC:220V/0.5A
Time measurement	Measuring range: 0.1ms ~ 9999s / 0.1ms

 

GDJB-PC Dimensions and Accessories

     ---High Accuracy Secondary Current Injection Intelligent Testing Instrument,Power System Protection Relay Tester