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Factors affecting selection of a protection relay test set
by Sunil Limaye MARKETER Protection relays are one of the critical components of the electrical power system.Although the technology has come to the level where the relay itself does selfcheck and it does not need external testing, many industrial customers continue to check the protection relays periodically.
In the market many reputed brands of relay test sets are available .
Following are some important technical criterion one should consider while buying a relay test set.
-Minimum and maximum current output limit per generator
-VA rating of current output through out the current range
-Time duration of maximum current output.
-Maximum and minimum voltage outout limit per voltage generator
-VA rating of voltage generator through out the voltage range
-protection provided for voltage and current generators against short circuit and open circuit
- Alarms for protection operation.
-Different types of fault simulations.
-Type of binary inputs to sense relay trip( dry/ wet/ auto )
-Binary contacts outputs for simulation of CB operation
-Number of Binary inputs
-Independent control of current generators
- Independent control of voltage generators
-Frequency variation of current and voltage generators.
Types of relays that can be tested.
Ease of maintenance
Ease of upgradation
Ease of calibration
These are some of the important technical paramaters to be looked at.
Find different types of protection relay test sets covering many of the above mentioned featurs at http://myriadindustrialsolutions.co.in
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About Sunil Limaye 
MARKETER
230 connections, 2 recommendations, 784 honor points.Joined APSense since, March 22nd, 2014, From Mumbai, India.
Created on Aug 30th 2018 04:35. Viewed 413 times.
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