Description
The WVM Series provides protection against premature
equipment (motor) failure caused by voltage faults on the
3-phase line. The WVM’s microcontroller design provides reliable
protection even if regenerated voltages are present. It combines
dependable fault sensing with a 10 fault memory and a 6 LED
status display. Part instrument, part control, the WVM protects
your equipment when you’re not there and displays what
happened when you return. The WVM is fully adjustable and
includes time delays to prevent nuisance tripping and improve
system operation. Time delays include a 0.25 to 30s adjustable
trip delay, an adjustable 0.25 to 64m (in 3 ranges) restart delay,
plus a unique 3 to 15s true random start delay. The random start
delay prevents voltage sags caused by simultaneous restarting
of numerous motor loads after a power outage.

FEATURES BENEFITS
Proprietary
microcontroller
based circuitry
Constant monitoring to protect against phase loss,
phase reversal, over voltage, under voltage,
unbalance, and short cycling
Fault memory Stores the 10 most recent faults, which provides
diagnostics for troubleshooting
LED indication Provides visual indictation of existing relay/fault
status or faults stored in memory.
Switch selectable
automatic restart,
delayed automatic
restart, and manual reset
Allows user adjustment to handle unique
application requirements
Random start delay
Prevents voltage sags caused by simultaneous
restarting of multiple motor loads after a
power outage