Drive Solutions for the Global Oil and Gas Industry ... - GE Energy

LCI Control Features:
• Load commutation above 10% base speed
• Sensorless speed control
• Speed control range: 10-150% of base speed
with logic to prevent reverse operation
• Built-in regeneration for smooth control of
loads
Cabinet Lineup:
Length - 158 in (4,000 mm) for 7,000 hp
version.
- 220 in (5,600 mm) for 18,000 hp
version.
Height - 100 in (2,500 mm) for all cabinets.
Depth - 55 in (1,400 mm) for all cabinets.
Cooling System
In the closed loop cooling system, coolant
circulates from the pump discharge, to the heat
exchanger, to the power conversion bridges, and
back to the pump. Pumps can be switched over
and changed without interrupting cooling.
1
N
AC
Voltage
Input
N +1 SCR
redundancy
Color Touch
Screen
Source Bridge
DC Link
Reactor
Main
Control
Module
VersaMax
I/O Modules
Load Bridge
AC
Voltage
Output
Optional
Transf ormer
Sy nchronous
Motor
Excitation
Voltage
Controller
Optional Tach Signal
LCI Source and Load Bridge Configuration
SCR water
cooling hoses
Source bridge
with series SCR
cells and heat
sinks
Cell replacement without
opening water cooling loop
Revised: 5-22-09 © 2009 TMEIC GE Automation Systems. All Rights Reserved.
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