General Introduction
TPJB-III Relaying protection tester is applied to test protection replay based on voltage and current operation. The main function of the tester include calibration of voltage and current operation relays, secondary circuit inspection, trip value of circuit breaker test, switch on and off time measurement of circuit breaker and so on. It’s a low cost, simple operation and reliable performance device for secondary circuit test.
Technical Index
1.DC voltage output: 0—350(V)continuity , maximum capacity output:960VA
2.AC voltage output: 0—350(V)continuity , maximum capacity output: 400VA
3.The voltage and current characteristic test for relay coil
Maximum voltage output is 240V and maximum current output is 5A.The duration time at maximum current is not more than 3 minutes.
4.DC current output:0-10A continuity, maximum capacity output:80VA
5.AC current output: 0-10A (at maximum voltage 40V) 0-100A((at maximum voltage 14V) capacity:1000VA Continuity Output time≤35S
6. AC voltage circuit short connection simulation: voltage output setting≤120V,range15~80%.
7.DC constant voltage alternating output(can be used as operating power of static relay)
Output Voltage: 24V、48V、110V、220V，output current: 0.4A
8. Tester Overload protection
1)DC/AC voltage output circuit:5A fuse
2)DC constant voltage output circuit:0.5A fuse
3) 6A fuse for tester power supply
9. DC/AC voltmeter and ammeter adopt 4-1/2 digit to transfer,accuracy:0.5 grade
10. Digital timer: 0.000~9999s error: mantissa ±2 digit
11.Symbol definition for time measurement
close operation for open contact from open state
close operation for close contact from open state
open operation for open contact from close state
open operation for close contact from close state
D relay operation value test
12.Others
1) Power supply: 220V±10%，50Hz
2) Temprature: -20°C~+40°C
3) Humidity:≤85%(15~25°C)
