Features

Some installations of the M-2001 series Tapchanger Control

may experience interposing relay buzzing, chatter (severe

buzzing), or in extreme cases, lock-up and runaway tap

changer operation.With sensitive coil configurations, even

though the pull-in current is usually in excess of 10 mA, the

“maintain” or “holding” current can be as low as 1-2 mA.

At that level, the leakage current from protective components

in the M-2001 series control, can cause the relay armature to

buzz or lock-up the interposing relay. Adding shunt resistance

to each of the output relay circuits will minimize the

interposing relay’s sensitivity to small leakage currents,

thereby eliminating the relay buzz, chatter, and lock-up.For

this reason, the B-2048 Resistor Assembly is provided with

some adapter panels.

Application

Distribution Protection

Specifications

Buy America(n) Qualified

Contact Manufacturer

Dimensions

Weight

.5 lb.

General

UPC

096359816379