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LS2100e Static Starter fact sheetThe LS2100e Static Starter is used to start heavy-duty gasturbines. It is an ac drive known as a load-commutated inverteror static-frequency converter. The static starter is a moreeconomical starting device for a large turbine than a motor,diesel engine, or torque converter. As a member of the Mark*VIe Integrated Control System (ICS) family of turbine, generator,and plant controls, it communicates peer-to-peer on the samenetwork to reduce field wiring. Also, it uses a common controllerand ControlST* software suite as other Mark VIe-based controls,operator stations, and engineer workstations to simplify plantoperations and maintenance.

PerformanceStatic starters control the generator as a synchronous motorwithout the need of auxiliaries, which saves space around theturbine base. They provide high acceleration torque from turninggear speed (usually at a minimum of 3 rpm).

The start sequence is communicated between the turbineand the static starter controls on the network. It consists ofaccelerating the turbine to purge speed, maintaining speedduring purge, and then de-energizing to allow coast-down tofiring speed. Once at firing speed, the starter is re-energized forfiring, followed by warm-up and acceleration to a self-sustainingspeed. The following protection types can also be provided.

Internal Protection:• Instantaneous overcurrent• Bridge differential current• Generator overvoltage• Source bridge undervoltage and overvoltage• Ground fault• Bridge coolant over temperature, low resistivity, low pressure,

high or low level• Shorted thyristor• No generator field at startExternal Protection:• Transformer differential protection• Transformer overcurrent and overload protection• Transformer fault pressure and gas detection (oil-filled)• Faults on cable or bus work and switchgear connecting the

static starter to the generator• Generator neutral dc fault protection• Volts / Hertz 1

• Short circuit and ground faults Hertz 1

1 Coordination needed with generator protection

Static Starter One-line Diagram

OperabilityOperators control and monitor the turbine-generator set byusing the proprietary static starter control screens, which areintegrated with the rest of the control system. Alarms andevents are time-stamped at their source by the LS2100e, andthen integrated with the rest of the alarm management system(along with control parameters) in a common time-coherentdatabase. This enhances alarm resolution and analysis of theturbine-generator set as a single system.

Alarm management includes a full set of diagnostics with cellmonitoring. Cells can be quickly and individually removed toreduce mean-time-to-repair. No disconnecting of the coolant orcell stack is necessary.

Although static starters can only start one turbine at a time, theLS2100e can be configured as the control for more than oneturbine. This provides starting flexibility and choices betweenstarting redundancy and cost savings. Configuration optionsinclude:

• A static starter for each gas turbine• A static starter for multiple gas turbines (up to four)• Two static starters cross-linked to multiple gas turbines (up

to eight)

Cooling SystemDirect liquid cooling is used for thyristors and power componentsinstead of air cooling. This reduces noise and air conditioningrequirements. Heat is dissipated outside the room with aliquid-air or liquid-liquid heat exchanger. The closed-loop systemcirculates coolant from the pump discharge to the remote heatexchanger, then to the power conversion bridges, and thenreturns it to the pump. A portion of the coolant bypasses toa self-contained de-ionizer system to maintain the coolantresistivity. The de-ionizer and filter can be changed while thestatic starter is running, and redundant pumps are provided forreliability.

GEA-S1266

fact sheetSpecificationsGeneralCell type Thyristor

Bridge type 12 pulse source, 6 pulse load

Bridge construction Heat sink / thyristor, dual cell stack

Coolant type Liquid

Thyristor replacement Offline without water disconnectReplacement time Four hours average

Power InputSupply voltage 2080 V ac each bridge, ±10%

Supply frequency 50 or 60 Hz, ±5%

Supply phases 3-phase, ±2% unbalance

Power OutputOutput power 8.5 or 14 MVA

Output voltage 0 to 4160 V ac

Frequency 0 to 50, or 60 Hz

Control PowerPower, frequency 7 kVA, 50 or 60 Hz, ±5%Voltage at 50 Hz 400/415 V ac, ±10%Voltage at 60 Hz 480 V ac, ±10%EnclosureType NEMA-1, IP-20, IEC-60529

Dimensions – 8.5 MVA 2800 x 1400 x 2345 mm110.2 x 55.1 x 92.4 in

Dimensions – 14 MVA 4400 x 1400 x 2345 mm173.2 x 55.1 x 92.4 in

Weight – 8.5 MVA 2630 Kg (5800 lbs)Weight – 14 MVA 4082 Kg (9000 lbs)Paint ANSI-70 light gray

EnvironmentRelative humidity 0 to 95%, non-condensing

Operating temperature 0 to 40°C (32 to 104 °F)

Storage temperature -25 to 70°C (-13 to 158 °F)Dc Link ReactorType Dry-type, air core

Voltage class 5 kV

Winding conductors Aluminum

Insulation Class HBIL ratings 4160 V / 30 kV

Isolation Transformer

Type and installation Dry-type cast resin for indooror outdoor

Standard ANSI / IEEE or IEC

Rating Depends on gas turbineframe, from 3.25 to 8.75

Connection Delta / Delta-Wye, 12-pulse

PrimaryOne primary, voltagedepends on the site, from4.16 to 11 kV

Secondary Two secondary each 2.08 kV

Cooling and Class Mineral oil ONAN, Air AN

Basic Impulse Level (BIL) As per the standards,ANSI/IEEE or IEC

Benefits• Less cost and space than alternative starting means for

large gas turbines• High acceleration torque• Ease of operation and maintenance with a common

ControlST software suite• Flexible reliability and cost savings choices in static starter

control configuration• Less mean-time-to-repair with precision diagnostics and

convenient repair techniques• Reduced noise and air conditioning requirements with liquid

cooling

For further assistance or technical information, contact thenearest GE Sales or Service Office, or an authorized GE SalesRepresentative.

© 2010 General Electric Company, All rights reserved.* Trademark of General Electric Company

GEA-S1266 Issued: 2010–12–02