Cannot read voltage values on Sepam 20

Issue
Sepam 20 does not show voltage values on the front display or via communications

Product Line
Sepam series 20

Environment
Measurements

Resolution
Sepam 20 relays measure voltage OR current.

Sepam 20 models that use current transformer (CT) or low power current transformer (LPCT) sensors measure current and not voltage. Models that measure current only are S20, S24, T20, T24, and M20 (please refer to table below)
​Sepam 20 models that use voltage transformer (VT) sensors measure voltage and not current. Models that measure voltage only are B21 and B22 (please refer to table below)

Application	Type	Sensor
Substation	S20	CT or LPCT
	S24	CT or LPCT
Transformer	T20	CT or LPCT
	T24	CT or LPCT
Motor	M20	CT or LPCT
Busbar	B21	VT
	B22	VT

* Table is an excerpt from "Order Form Sepam 20", available from the Schneider Electric website: https://www.se.com/ww/en/download/document/order_form_sepam_series_20/

Publikováno pro:Schneider Electric Česká republika