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Hello everyone, I am in need of some help with regards to a relay. In the attached drawing, I am not sure of all the requirements of the the two relays between the power supply and the transformer. Must these two specific relays have a dielectric strength of 4800VAC? The power source is not in...

Thank you for the responses everyone. The relays would only close once the hi-pot has been turned off. The relays will never pass 4800VAC. I am just wondering if 4800VAC is applied to those two relays (when open), what would the requirements of the relays have to be to ensure that breakdown does...

Haha, definitely not kidding. What exactly do you mean by too much? I wanted to be as specific as possible.

I have attached a picture of a circuit where a hi-pot is applying 4800VAC to a transformer. Also in parallel with that 4800VAC rms are two wires heading into a 600VAC rms multiplexer. I have one relay on each line. The 4800VAC is only applied when the relays are both open. I am not sure of the...

Hey everyone. Thank you for the replies. I was advised to use a 300V DMM and a 300V multiplexer and to build a circuit between the device under test (which can have measurements up to 600V) and the multiplexer. This option was presented as the cheaper option. There is a 600V DMM available but I...

Thank you Skogsgurra for the reply. Right now I am thinking of inserting a low voltage potential transformer between the device under test and the voltmeter (which in this case is a Digital Multimeter). The transformers I would be testing range between 25VA and 7.5KVA. I would like to have it...

If I have a voltmeter that measures voltages up to 300 Volts, how can I use that same voltmeter to measure a signal between 300 volts and 600 volts? Specifically, this is for measuring the no load secondary voltage of a transformer. Thanks