POB II series Coil Tester & Power Supply Units - Beijing Kanggaote Instruments and Equipment

Product introduction

POB30AD and POB40AD are unique devices in the market due to their dual purpose. POB II Series as a Power Supply Unit for Coils and Spring-Charging Motors POB30AD and POB40AD can be used as a DC and AC power supply units for circuit breakers during commissioning and regular maintenance testing. The typical application covers scenarios when substation battery is not connected or available. An advantage over substation battery is enabled testing in under-voltage and over-voltage conditions. Furthermore, the stable voltage outputs enable an analysis of the coil and motor current graphs recorded with circuit breaker analyzers from different vendors.

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▪ Lightweight – only 11 kg
▪ Powerful DC motor output – up to 40 A
▪ Separate opening and closing coil outputs:10 V – 300 V DC, 10 V – 250 V AC
▪ Minimum trip voltage test (fully automatic)
▪ External control for coils outputs

The Coil Tester & Power Supply Units POB II series are primarily designed for MV and HV
circuit breakers testing during manufacturing,commissioning and maintenance stages.
The testing process may encompass any or all of the following:
▪ Power supply for coils and motor while testing with circuit breaker analyzers from
different vendors:
- AC/DC power supply for circuit breaker breaking and closing coils actuation
- DC voltage for supplying the spring-charging motors
▪ Coils current value measurement
▪ Minimum trip voltage-test of the circuit breaker's coils (IEC 56, ANSI C37.09).

The Coil Tester & Power Supply Units POB II series can be used is used in factories and
laboratories, but also in high induction switchyards, power and industrial environments.

The DC motor output on POB can also be used as a general power supply unit or a temporary
battery charger.

POB II series Coil Tester & Power Supply Units