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MOTOR
STARTERS TYPE GK-1 D.O.L / GK-1 STAR - DELTA
GK-1 "GANGA" Direct-On-Line
& Star-Delta Motor Starters have robust construction & offers smooth and
reliable performance. They are designed to meet the most stringent needs in both
agricultural & industrial fields.
D.O.L
Starters; Range: 0.5 to 7.5Hp.
Direct-On-Line starters
consists of one GK-1 Relay & GK-1 Contractor. Contactor protects the motor
against under voltage where as the relay protects the same against
overloads.
Star-Delta Starters Range: 1 to 15Hp
These starters are provided
with a star contactor, delta contactor & line contactor with overload relay.
In these starters the motor draws 1/3rd of the normal starting current and hence
other loads connected to the same line are unaffected. They are of 2
types.
Semi Automatic
Star-Delta Starter
In this type of motor
starter the 'START" button is pressed till the motor picks up to 80-85% speed in
Star connection & by releasing the 'START' button the switching from Star to
Delta takes place.
Fully Automatic
Star-Delta Starter
In this type of starter
switching from Star to Delta is performed automatically in 10-15 sec by a
precise thermal timer.
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