7/30/2019 Ge Swgear Det-324

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GE Power Switching & Controls

63 kA Power/Vac

Metalclad Switchgear

4.76 kV - 500 MVA8.25 kV - 900 MVA15.0 kV - 1500 MVA

An expanded offering fromGE PS&C Switchgear -exceeds the latest ANSI C37.06recommended ratings

Applications

Close/eliminate bus ties

Reduce/eliminate need forcurrent-limiting reactors orhigher impedance transformers

Simplify large motor startingrequirements

Provide protection for largergenerators and transformers

Retrofit/upgrade existingPower/Vac installations

7/30/2019 Ge Swgear Det-324

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gGE Power Switching & Controls

General Electric Company510 East Agency RoadWest Burlington, IA 52655

DET-324

63 kA Rated Power/Vac

Metalclad Switchgear

Product Description 63kA rated, 1kV to 15kV

Available as new metalclad switchgear equipment

and retrofit/upgrade equipment for existingPower/Vac installations

Based on the ML-17 breaker mechanism which has

more than 25 years of excellent field experience

Manufactured by GE PS&C Switchgear Operation

in Burlington, Iowa qualified as an ISO-9002

manufacturer since 1992

UL and CSA listings available as an option

BenefitsEXPANDED RATINGS

Expanded metalclad switchgear ratings provide greaterdesign flexibility by permitting alternative choices for system

configuration, equipment type and protection.

EASY UPGRADES on EXISTING POWER/VAC

Retrofit upgrades on most existing Power/Vac can be achieved

without total system redesign; simply replace the breakers with

this higher rating and modify the bus bracing. The physical size

of this breaker is the same as that of other Power/Vac breakers.

ENHANCED RELIABILITY

System reliability is enhanced by allowing system sourcesto remain on-line, eliminating source transfers, optimizing

processes and accomodating increased short circuit ratings

from motors.

COST and SPACE SAVINGS

Total system cost savings - including equipment, space,

installation and operating losses - cost reductions are

achievable through the reduction/elimination of mutliple

bus ties, current limiting reactors, high impedance

transformers and complex motor starting schemes.

IMPROVING POWER QUALITY

By simplifying system design, installation and operation,this higher rating allows the user to achieve more

consistant power quality.

SAFE OPERATION

Vacuum interrupters are housed in insulated support

barriers, providing a greater degree of isolation between

phases. Vertical insulation prevents ready adherence of

contaminants, which can cause tracking and flashover.

Technical Data Summary

Nominal Voltage Range 4.16kV 7.2kV 13.8kVRated Maximum Voltage 4.76kV 8.25kV 15.0kV

Rated Short Circuit Current 63kA

Nominal MVA Class 500MVA 900MVA 1500MVA

Voltage Range Factor (K) 1.0

Frequency 50/60 Hz

Continuous Current

@ 60 Hz Amps 1200, 2000, 3000, 3500 or 4000

Low Frequency Withstand

1 Minute Dry 19kV 36kV 36kV

Impulse Voltage B.L.L. 60kV 95kV 95kV

Duty Cycle CO + 15s + CO

Interrupting Time 5 Cycles

Assymetry Factor (S) 1.1

Close and Latch Capability 170kA

3 sec. Short TimeCurrent Capability 63kA

Transient Recovery Voltage 8.9kV 15.5kV 28.2kV

Reclosing Time < 10 Cycles

Reclosing Duty Factor (R) 100%

# of Operation - No Load 10,000

# of Op. - Between Servicing 2,000

Spare Auxiliary Switch Contacts 2a, 3b

Operator Designation ML-17H

Control Voltage Close Coil

and Monitor 48V, 125V, 250V DC;

120V, 240V AC

Trip Coil 48V, 125V, 250V DC;

240V AC requires separate

capacitor trip unit