BENDER over-voltage monitoring relays

... Undervoltage, overvoltage and frequency monitoring of AC/DC systems 0…300 V Various monitoring functions selectable U, f Adjustable start-up delay, response delay and delay on release Password protection ...

... Undervoltage, overvoltage and frequency monitoring of AC/DC systems 9.6…150 V (VME421H-D-1), 70…300 V (VME421H-D-2) Integrated energy storage, is supplied by the system being monitored Various monitoring ...

... Undervoltage, overvoltage and frequency monitoring in 3(N)AC systems 0…500 V Various monitoring functions selectable U, f Asymmetry, phase failure and phase sequence monitoring Adjustable ...

... Undervoltage, overvoltage and frequency monitoring in 3(N)AC systems 0…500 V Integrated energy backup Asymmetry, phase failure and phase sequence monitoring Adjustable start-up delay, response delay ...

... transformers (100 V). An alarm relay is activated within ≤ 80 ms when limit values are reached (response values according to VDEW guideline “Private electricity generation systems at the medium voltage grid”). An overvoltage ...

... measured value required to trigger the alarm relay is stored. The VMD461 features additional measuring functions for: ROCOF df/dt Vector shift monitoring Unbalance monitoring Phase sequence monitoring The ...

... undervoltage and overvoltage as well as the response delays are continuously adjustable. Features Undervoltage and overvoltage monitoring for 3AC systems No separate supply voltage required Separate ...

... The energy backup of the ES258 series is a supplementary device for the undervoltage/ overvoltage relay VMD258. It provides the electronics of the connected VMD258 with the necessary energy, to cover the duration of the ...