Medium-Voltage Circuit Breakers

Reliable technology, ease of operation and economy with Siemens medium-voltage circuit breakes

Be it energy supply corporations, industry or power stations, any owner or user of primary distribution systems for medium voltage puts high demands on the switchgear. These include reliable technology, ease of operation and economy. With our complete range of circuit breaker and switchgear systems for medium-voltage, Siemens sets the standards when it comes to reliable and efficient solutions for special requirements.

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Type GM-SGY Cell Parts Kits Up to 50 kA

Siemens offers the following type GM-SGY cell parts kits up to 50 kA [1-6]:

test details

A-1,200 A circuit breaker cell parts kit

A-2,000 A circuit breaker cell parts kit

A-3,000 A circuit breaker cell parts kit

B-1,200 A circuit breaker cell parts kit

B-2,000 A circuit breaker cell parts kit

B-3,000 A circuit breaker cell parts kit

C-VT tray cell parts kit

D-CPT tray cell parts kit

D-VT tray cell parts kit

D-Fuse cell parts rollout tray cell parts kit

E-VT tray cell parts kit

F-Fuse cell rollout tray cell parts kit

F-VT tray cell parts kit

F-CPT tray cell parts kit

Type GM-SGY Rollout Trays Without Transformers or Fuses

Siemens offers the following type GM-SGY rollout trays without transformer or fuses [1],[2]:

test details

F-5 kV 3Ø fuse rollout tray

5 kV two VTs rollout tray

5 kV three VTs rollout tray

5 kVA CPT rollout tray for 5 kV fuses

10 kVA/15 kVA CPT rollout tray for 5 kV fuses

15 kV two VTs rollout tray

15 kV three VTs rollout tray

5 kVA CPT rollout tray for 15 kV fuses

15 kVA CPT rollout tray for 15 kV fuses

Type GMSG Circuit Breaker Ratings - Constant kA

Type GMSG circuit breaker ratings are in accordance with the following standards [3], [7], [8], [9]:

test details

ANSI/IEEE C37.04-1999 standard rating structure for AC high-voltage circuit breakers

ANSI/IEEE C37.06-2009 AC high-voltage circuit breakers rated on asymmetrical current basis - preferred ratings and related required capabilities

ANSI/IEEE C37.09-1999 standard test procedure for AC high-voltage circuit breakers rated on a symmetrical current basis

ANSI/IEEE C37.010-1999 application guide for AC high-voltage circuit breakers rated on a symmetrical current basis.

Type GMSG Circuit Breaker Ratings - Historic Constant MVA

Type GMSG circuit breaker ratings are in accordance with the following standards [2,3,11,12,13,14]:

test details

ANSI/IEEE C37.04-1979 standard rating structure for AC high-voltage circuit breakers rated on a symmetrical current basis

ANSI C37.06-1987 AC high-voltage circuit breakers rated on a symmetrical current basis - preferred ratings and related required capabilities

ANSI/IEEE C37.09-1979 standard test procedure for AC high-voltage circuit breakers rated on a symmetrical current basis

ANSI/IEEE C37.010-1979 application guide for AC high-voltage circuit breakers rated on a symmetrical current basis.