Typical application areas of cat instruments are medium and high voltage substations at electric power generation transmission and factories of switchgear.
Circuit breaker timer test.
Very interesting are also new conceptions for testing of circuit breakers based on analysis of mechanical vibration signal 2.
Field portable instruments with standalone or pc controlled functionality allow performing various tests during circuit breaker manufacturing commissioning and maintenance stages.
All these features must be checked with the appropriate primary injection test set with the capacity to simulate the corresponding high current faults required and capture.
A circuit breaker timing test is the process of measuring the mechanical operating times with the goal of verifying analyzing and validating the correct function of the circuit breaker.
It is also evident that when testing circuit breakers with timer as they are usually installed in an open air environment the testing conditions are unfavorable.
How to test a circuit breaker of this type depends on its maximum rated current the trip protection settings and the inverse curve types which will define the overload and short circuit trip pickup levels and time delays.
The doble tdr900 is your entry level portable circuit breaker test set.
These circuit breaker testers are covered by united states patent number 9086447.
Second generation testing methods based on digital timers with time pulse conversion e g.
The types of timer circuit breaker on the market that have manual control are very difficult to configure and testing a circuit breaker using them is a very slow process.
With single instrument one can measure making breaking time of r y b arm of a breaker at a time.
Vlsi digital circuit breaker timer cbt is in lcd display type.
Circuit breaker timer incorporates digital timer 120vac 125vdc power supply for charging spring charged breakers outside cubicle switching to trip and close the breaker under test and includes unique cable sets which significantly simplify and speed connections to the breaker.
Use the tdr900 to verify control circuit check motion of moving parts validate time of operation and.
Mcbt p motwane s circuit breaker timer kit designed to measure close open close open timing with bounce of circuit breakers upto 220kv ratings.
It is used for substation breaker time measurement i.
It operates and records a circuit breaker s contact timing motion velocity main contact engagement synchronization trip and close coil initiation and currents.
About circuit breaker analyzers timers cat circuit breaker analyzers and timers are advanced standalone or a pc controlled instruments for circuit breaker maintenance.
About circuit breaker test equipment dv power has released a new generation of circuit breaker test equipment for condition assessment of medium and high voltage circuit breakers.
