Powerful DC and AC power supply units for a circuit breaker test Print this page Print this page
POB30D, POB30AD, POB30DL, POB30ADL, POB40D and POB40AD 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 Coil Testers & Breaker Supply units POB30D, POB30AD, POB30DL and POB30ADL, POB40D and POB40AD 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 analyzer. Coil Tester & Breaker Supply units are in those cases used as a power supply units. They are compatible with breaker analyzers from different vendors. Coil Tester & Breaker Supply 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:
  • minimal-trip voltage-test of the circuit breaker's coils
  • supplying spring-charging motors
  • power supply at test with breaker analyzers
Breaker Supply Unit POB30 series

The POB30D and POB30AD are powerful and versatile units, with possibility to generate at 230 V mains supply, initial current of 30 A as well as continuous current according to the table below:

Load voltage Current Max load interval
110 V 24 A 20 sec
110 V 20 A 60 sec
220 V 12 A 20 sec
220 V 10 A 60 sec
The POB30DL and POB30ADL are powerful and versatile units, with possibility to generate at 230 V mains supply, initial current of 30 A as well as continuous current according to the table below:
Load voltage Current Max load interval
5 V 24 A 20 sec
5 V 20 A 60 sec
15 V 24 A 20 sec
15 V 20 A 60 sec
25 V 24 A 20 sec
25 V 20 A 60 sec

POB30D, POB30AD, POB30DL and POB30ADL 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 proprietary hardware and software. The set is equipped with thermal and overcurrent protection.

  POB30D POB30AD POB30DL POB30ADL
Coils output DC voltage 10 V - 300 V 10 V - 300 V 1 V - 50 V 1 V - 50 V
Coils output AC voltage   10 V - 250 V   1 V - 40 V
Motor output DC voltage 10 V - 250 V 10 V - 250 V 1 V - 50 V 1 V - 50 V
Voltage resolution 1 V 1 V 0,5 V 0,5 V
Accuracy 0,5 % 0,5 % 0,5 % 0,5 %
Breaker Supply Unit POB40 series

The POB40D and POB40AD are powerful and versatile units, with possibility to generate at 230 V mains supply, initial current of 40 A as well as continuous current according to the table below:

Load voltage Current Max load interval
110 V 30 A 20 sec
110 V 24 A 60 sec
220 V 15 A 20 sec
220 V 12 A 60 sec

POB40D and POB40AD 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 proprietary hardware and software. The set is equipped with thermal and overcurrent protection.

  POB40D POB40AD
Coils output DC voltage 10 V - 300 V 10 V - 300 V
Coils output AC voltage   10 V - 250 V
Motor output DC voltage 10 V - 250 V 10 V - 250 V
Voltage resolution 1 V 1 V
Accuracy 0,5 % 0,5 %
Accessories
Cable set
Test lead set 6 x 2 m 2,5 mm2
Transport Case
We offer hard transport case as an optional accessory which improve mechanical protection of devices in transport.