WVM中文资料力特数据手册PDF规格书

描述 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