this sensing resistor ER-15kV/ER-25kV is used for voltage monitoring of neutral grounding resistor. Our question is :
- can we use this sensor to monitor the voltage across Neutral Grounding Reactor instead of neutral grounding resistor?
- What is the out put of this sensor?
- Application with any other manufacturer relay (GE/SEL/ABB) instead of this STARTCO SE-330?
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- Physical dimension and picture
Hello Sjafri and welcome to the forum,
The sensor is itself a resistor, we wouldn’t recommend its use outside of Littelfuse’s SE-330 and SE-325 assemblies.
Physical dimensions/drawings can be found here:
ER-15KV Series - Sensing Resistors from Accessories - Littelfuse
ER-25KV Series - Sensing Resistors from Accessories - Littelfuse
Thanks for quick reply, can I used this with Neutral grounding Reactor instead of resistor?
I’m not sure, the SE-330 is itself a grounding resistor monitor assembly. In my review of the product brief, I saw nothing that would lend itself to measuring inductance as a function of a fault.