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Voltage measurement

The UMG507 is suitable for measuring alter-

nating voltages of up to 500VAC to earth and

870VAC phase-to-phase. The wiring cables

for the measured voltages must be suitabel for

voltages up to 500VAC to earth and 870VAC

phase-to-phase.

Attention!

The UMG507 is not suitable for mea-

surement of direct voltages.

Voltages over 500VAC to earth must

be connected through a voltage trans-

former .

The supply conductors for voltage

measurement in UMG507 must be

protected by an overcurrent protective

device.



Installation

Fig.6 Three-phase measurement without PEN

conductor with three current transformers.

(three-wire measurement)

Fig.7 Three-phase measurement without PEN

conductor with two voltage transformers and

three current transformers. (three-wire mea-

surement)

Fig.8 Three-phase measurement without PEN

conductor with two voltage transformers and

two current transformers. (three-wire mea-

surement)

janitza UMG507 User Manual

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