Megger B10E Power Supply

• Reliable and stable power supply for circuit breaker testing  Continuously variable 24-250 V AC or  DC output
• Separate outputs for close coil, trip coil and spring charging motor voltage
• Direct triggering for minimum trip voltage testing
• Operate with a breaker analyzer for efficiency in testing sequence

 A variable DC voltage is needed to test a circuit breaker. Substation batteries should not be used since this entails considerable risk for testing personnel, testing equipment and also for the equipment being tested. The best way to ascertain whether or not solenoids and protective mechanisms are sluggish or working properly is to perform a test at minimum tripping voltage. The minimum trip voltage test is described in international and national standards such as IEC 62271-100, ANSI C37.09 etc. B10E can be used to test breaker coils in this manner. It provides a ripple-free variable DC voltage that can easily accommodate a high, variable load. Since there is a separate output for supplying spring-charging motors, the B10E is ideal for testing circuit breakers where auxiliary voltage is not connected or available.

The compact Power Supply Unit B10E provides reliable assistance to those who do maintenance on high-voltage breakers. The control panel’s intuitive layout makes it easy to operate, and the built-in thermal cutout and overload protector make it safe to use. The B10E has been developed in collaboration with breaker manufacturers and testing personnel.

Application:

The B10E is a portable self contained test set designed specifically for use in substations and industrial locations. The B10E is intended for testing medium and high-voltage power circuit breakers. Using the latest technology the B10E uses a ripple free variable DC voltage to operate breaker coils, and charging motors to ascertain the condition of these devices with respect to the manufacturer’s original specifications.