Description
The stabilized direct current source for testing circuit breakers RIP-2 is designed to control the value of the minimum turn-on and turn-off voltage of high-voltage circuit breakers with an electromagnetic drive. The source provides a stabilized voltage in the range from 50 V to 215 V in steps of 1 V at a current of up to 400 A.
During periodic revision, as well as after repair of high-voltage circuit breakers in accordance with clause 15.4 of STO 34.01-23.1-001-2017 “Scope and norms testing of electrical equipment” it is necessary to check the minimum operating voltage of the circuit breakers in accordance with the standards of the manufacturers.
For example, the minimum operating voltage when the MKP-110 circuit breaker is turned on is defined as 68% of the nominal value, and when turned off, it is 55%. At the same time, the currents consumed from the storage battery (ACB) by the solenoids of electromagnetic drives during switching on can be hundreds of amperes, at a nominal voltage of 110 or 220 V.
At present, the RIP-2 source has no domestic analogues!
Category: Devices for diagnostics of station and substation equipment
Functions:
- Monitoring the value of the minimum voltage for switching on and off high-voltage circuit breakers with an electromagnetic drive
Distinctive features:
- High reliability with small dimensions – made on a modern element base
- Protection against reverse polarity of input voltage, against short circuit and against overheating
- Ability to calibrate the output voltage of the source during operation
