GDPCIT 500A to 15000A Circuit Breaker Maintenance Trip Test Primary Current Injection Test Set
Product Description
GDPCIT 500A to 15000A Circuit Breaker Maintenance Trip Test Primary Current Injection Test Set
Applications of GDPCIT Circuit Breaker Maintenance Trip Test Primary Current Injection Test Set
The main applications and functions of GDPCIT are as follow:
1)High current output injected to the main circuit of power line to simulate the fault current. And then check whether the protection system will be operated according to the design.
2) High current output injected to the primary of current transformer and then measure the inducted current from secondary by error measurement instrument to check the ratio error and phase displacement of CT.
3)High current output injected to the main circuit of circuit breaker to simulate the rated current in primary. And then check the stability of circuit breaker according to the temperature rise procedure.
4)Considered as a AC high current source in power equipment or cable test .
Technical Index
| Output Current | 500A to 15000A (The price will be different based on different output current) |
| Outpur capacity | 3KVA to 40KVA (The price will be different based on different output capacity). |
| Power Supply | As per customer requirements. Normally, the current lower than 2000A, the power supply is AC220v. The current higher than 2000A, the power supply is AC380V or higher. |
Current is measured from the secondary of current transformer which is installed in the internal of the current booster. The display unit is 4 and 1/2 digitals current meter. Maximum measurement error 0.5%RDG+5D. | |
1) Timer indication of test running is an optional configuration. The timer could be customized according to the requirement of customer from the follow list: 1) 4 digital timer from 0~9999s / 0~999.9s /0~99.99s, accuracy 0.5%RDG+5D. 2) 5 digital timer from 0~99999s / 0~9999.9s /0~999.99s, accuracy 0.2%RDG+2D. 3) 6 digital timer from 0~999999s/0~99999.9s /0~9999.99s, accuracy 0.1%RDG+1D. | |
Duty Cycle of Primary Current Injection Test Set
GDPCIT Primary current injection test set is designed for short term high current injection application. It should not be applied for the live equipment work for long time. The duty cycle of GDPCIT Primary current injection test set is depends on the output power of the test set. The detail description is as table 1.
Table 1 Duty Cycle of GDPCIT Primary Current Injection Test Set
| Load Status(Rating %) | Maximum duration of continuous operation(s) |
| 100 | 30s |
| 85 | 90s |
| 75 | 180s |
Test Procedure
1)Check the current injection test set. Confirm that the physical condition of the test set is ok.
2)Remove the original cables from the specimen circuit breaker.
3)Connect the high current test cable to the specimen circuit breaker.
4)Connect the aux contact to the stop signal circuit of time counter.
5)Turn on the power supply of test set.
6)Enable the output of high current by circuit breaker of panel.
7)Adjust the output current to the object value and read the current value of over current protection relay operate.
8)Stop the output current by circuit breaker from the panel of tester.
9)Enable Time counter and setup correct stop signal.
10)Reset the over current protection relay.
11)Enable the output current by the circuit breaker in the panel.
12)Decrease the output current and read the current value of over current protection relay runback.
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Contact Person: Christine Gou
Whatsapp/Wechat: +86 15123029885
Mobile: +86 15123029885
E-mail: gold05@hy-industry.com