The RC unit fixed on the transformer for protection from overvoltages--what kind of maintenace is done on it ? How can the healthiness of RC unit be checked for big transformers.
Same for the surge arrestors.Is there any test other than visual inspection ?Can the healthiness of checked that it is really supressing the surges?
Same for the surge arrestors.Is there any test other than visual inspection ?Can the healthiness of checked that it is really supressing the surges?