Technical data

CHAP-04.10 ELECTRICAL POWER DISTRIBUTION, DRIVES, CONTROL &
ILLUMINATION ELECTRICAL
Page 25 of 50
pad. Weatherproof enclosures will be used for outdoor control
panels.
02. Constructional Features
 Non-Draw out type.
 All other features will be similar to Intelligent type indicated in
GTS
03 Incoming Feeder
The incoming feeder will have:
 MCCB
 Ammeter and voltmeter with selector switch.
 3 nos. current transformers
 3 nos. indicating LED type lamps (R, Y, B)
 3 nos. indicating LED type lamps (ON, OFF, TRIP)
04 Outgoing Feeders
Each outgoing motor feeder will have following:
 MCCB (above 45 kW motor) / Motor Protection Circuit Breaker
(up to 45 kW motor)
 Three pole contactor
 Ammeter with CT & Selector switch.
 Stop & Test Push Buttons
 ON/ OFF/ Trip indication LEDs
 Digital microprocessor based overload relay with SPP & manual
reset facility
 Motor Protection Relays for motors above 90 kW rating.
Each outgoing non motor feeders will have following:
 MCCB.
 ON/OFF indication LEDs.
05 All motors will be operable from Control desk, pendant or LCS.
Only the facilities for testing the control circuit by-passing the power
circuit will be provided.
06 Two number of DC power pack feeders complete in all respects
with change over scheme will be provided for DC power supply to
solenoid valves etc as required.
07. Ammeters for essential drive motors will be provided.
08. Major components will conform to General Technical Specification
(GTS).