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Circuit breaker testers
Circuit breaker tester. Trip voltage tester.
The circuit breaker tester POB30D and POB30AD are power supply units employing the latest power electronics technology. They are developed for use in switchyards, electric power and industrial environment. An important part of commissioning and maintenance testing is a circuit breaker testing.
Our circuit breaker testers POB30D and POB30AD have built-in capability to perform automatic test of minimal trip voltage. The minimum trip voltage test is described in a number of international and national standards such as IEC 62271-100, ANSI C37.09 etc. Many other important parameters are possible to test with a breaker analyser. The POD30 circuit breaker testers are in those cases used as a power supply units. They are compatible with breaker analysers from different vendors. POD units can also be used as general power supply units or temporary battery charger. Maximum load time for coil outputs is 1 second.
Typical applications of the POD circuit breaker testers:
- minimal-trip voltage-test of the circuit breaker's coils
- supplying spring-charging motors
- power supply at test with breaker analysers
The POB30D and POB30AD are powerful and versatile units, with possibility to generate at 230V mains supply, initial current of 35A as well as continuous current according to the table below:
| Load voltage | Curret | Max load interval |
| 48V | 26A | 20sec |
| 48V | 24A | 60sec |
| 110V | 24A | 20sec |
| 110V | 20A | 60sec |
| 220V | 12A | 20sec |
| 220V | 10A | 60sec |
The circuit breaker testers POB30D and POB30AD have very high ability to cancel electrostatic and electromagnetic interference in high HV electric fields. It is achieved by very efficient filtration. The filtration is made utilizing appropriate hardware and software. The set is equipped with thermal and overcurrent protection.
| POB30D | POB30AD | |
| Coils output DC voltage | 10-300V | 10-300V |
| Coils output AC voltage | 10-250V | |
| Motor output DC voltage | 10-250V | 10-250V |
| Maximum output current | 35A | 35A |
| Voltage resolution | 1V | 1V |
| Accuracy | 0,5% | 0,5% |
Accessories
Transport Case
We offer hard transport case as an optional accessory which improve mechanical protection of the circuit breaker testers in transport.
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Test shunt
We offer test shunt 50A/100mV. It could be used for accuracy checking of our circuit breaker testers
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