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The CVB Series vacuum circuit breaker is the main electrical switch and protection device of AC locomotives and electric multiple units. Mode of operation: The energy required to switch on the CVB is stored by a spring. It takes only a small pulse energy to unlock the main spring release latch and set free the stored energy. As soon as the supply voltage is applied, the spring gets recharged in less than 10 s. When no control voltage is being applied, the vacuum circuit breaker is in switched off position and the spring remains charged and ready for the next switching operation.
Features:
- Electrically driven vacuum circuit breaker
- No secondary supply energy like pressurized air required
- Versions for 15 kV to UIC 550 available
- Following the fail safe principle
Application:
- AC main switch in electric locomotives and EMUs
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Indoor medium voltage switches
Vacuum circuit-breaker type V...
according to IEC 62271-100 + A1
• Rated voltage 12 kV, 24 kV, 36 kV and 38.5 kV
• Rated current 630 A, 1250 A, 1600 A and 2000 A
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Power/Vac® Vacuum Breakers
1200 to 4000A. GE pioneered this interrupter technology beginning with experimental work in the 1920's. Today, the vacuum design remains superior to other arc interruption technologies by providing a smaller footprint and simpler design.
Power/Vac® Replacement Vacuum Breakers
1200 to 3000A. GE Power/Vac® Vertical Lift (VL) breakers provide an economical and efficient way for customers to upgrade existing GE Magne-Blast Type AM (Air Magnetic) vertical lift circuit breakers.
Power/Vac® Vacuum Distribution Breakers
200 to 1120A. GE's outdoor distribution breaker uses the same proven vacuum interrupter technology as found in GE's Power/Vac breaker installed in metalclad, medium voltage switchgear.
Power/Vac® Vacuum Distribution Recloser Breakers
200 to 1120A. The GE Distribution Recloser helps customers maximize uptime and minimize outages by clearing non-persistent or temporary overhead faults.
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- For use on closed vessels and piping systems to
control induced vacuum within safe limits
- Adjustable from 1/4" - 20" (8-508mm) Hg vacuum - factory
set at 2" (51mm) Hg vacuum
- 3/4" NPT straight shank
- Maximum operating temperature 366°F(186°C)
- Maximum operating pressure 150 psig (10.3 bar)
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1. General
1) High reliability of the operating mechanism
- Separate design of the main circuit from the operating mechanism.
- Adopt the toggle link method.
- Improved the reliability of electric circuit.
- Adopt the rapid auto-reclosing method as a standard option. (O-0.3sec.-CO-3min.-CO)
2) High interrupting performance
- Make short of the interrupting time. (3cycles)
- Increase the rated short-circuit withstand characteristics. (1sec. to 3sec.)
3) Great operational safety
- Reinforce the insulation in the conduct, by adopting the molded housing in each phase.
- Built in the device making the contacts open first when draw in and out.
- Adopt the tulip-shape connection between the cradle and the VCB.
2. Type: LVB
3. Ratings
- Rated voltage: 7.2kV, 12kV, 17.5kV, 24kV
- Rated normal current: 630A, 1250A, 2000A, 2500A
- Rated short-time withstand current: Max. 40kA
4. Wide range of accessories (optional)
5. Applied standard: IEC 62271-100 (M2, E2(List1), C2 class)
6. Certification: KEMA, KERI
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DRIESCHER - Outdoor Switch-Disconnector
Type FLa 15/97
• Rated voltage 12 kV, 24 kV, 36 kV and 38.5 kV
• Rated current 400 A and 630 A
• 1-pole and 3-pole design
Contrary to former outdoor load-break switches in which it was common practice for the arc to be extinguished in oil, with the new developed outdoor switch-disconnector FLa 15/97 arc extinction takes place in a vacuum interrupter.
Based on a patented insulating system there is also no liquid or gaseous medium required for the external insulation strength of the vacuum interrupters.
The vacuum quenching device is embedded in a weather-proof insulating housing.
This switchgear is therefore also recommended for special applications (e.g. in water protection areas).
The outdoor switch-disconnector is capable of switching on its rated current as well as its rated short-circuit making current via the main contact system.
The disconnecting process is implemented via the shunt-connected vacuum interrupters, resulting in no external arcing phenomena.
A fully developed eccentric make-and-break mechanism operates the vacuum interrupters and ensures Class M2 with regard to the mechanical strength (corresponds to 5000 mechanical operating cycles).Fefer brochure 766e
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| ... products without technical information |
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The CVB Series vacuum circuit breaker is the main electrical switch and protection device of AC locomotives and electric multiple units. Mode of operation: The energy required to switch on the CVB is stored by a spring. It takes only a small pulse energy to unlock the main spring release latch and set free the stored energy. As soon as the supply voltage is applied, the spring gets recharged in less than 10 s. When no control voltage is being applied, the vacuum circuit breaker is in switched off position and the spring remains charged and ready for the next switching operation.
Features:
- Electrically driven vacuum circuit breaker
- No secondary supply energy like pressurized air required
- Versions for 15 kV to UIC 550 available
- Following the fail safe principle
Application:
- AC main switch in electric locomotives and EMUs
|
|
Indoor medium voltage switches
Vacuum circuit-breaker type V...
according to IEC 62271-100 + A1
• Rated voltage 12 kV, 24 kV, 36 kV and 38.5 kV
• Rated current 630 A, 1250 A, 1600 A and 2000 A
|
|
Power/Vac® Vacuum Breakers
1200 to 4000A. GE pioneered this interrupter technology beginning with experimental work in the 1920's. Today, the vacuum design remains superior to other arc interruption technologies by providing a smaller footprint and simpler design.
Power/Vac® Replacement Vacuum Breakers
1200 to 3000A. GE Power/Vac® Vertical Lift (VL) breakers provide an economical and efficient way for customers to upgrade existing GE Magne-Blast Type AM (Air Magnetic) vertical lift circuit breakers.
Power/Vac® Vacuum Distribution Breakers
200 to 1120A. GE's outdoor distribution breaker uses the same proven vacuum interrupter technology as found in GE's Power/Vac breaker installed in metalclad, medium voltage switchgear.
Power/Vac® Vacuum Distribution Recloser Breakers
200 to 1120A. The GE Distribution Recloser helps customers maximize uptime and minimize outages by clearing non-persistent or temporary overhead faults.
|
|
- For use on closed vessels and piping systems to
control induced vacuum within safe limits
- Adjustable from 1/4" - 20" (8-508mm) Hg vacuum - factory
set at 2" (51mm) Hg vacuum
- 3/4" NPT straight shank
- Maximum operating temperature 366°F(186°C)
- Maximum operating pressure 150 psig (10.3 bar)
|
|
|
|
|
|
1. General
1) High reliability of the operating mechanism
- Separate design of the main circuit from the operating mechanism.
- Adopt the toggle link method.
- Improved the reliability of electric circuit.
- Adopt the rapid auto-reclosing method as a standard option. (O-0.3sec.-CO-3min.-CO)
2) High interrupting performance
- Make short of the interrupting time. (3cycles)
- Increase the rated short-circuit withstand characteristics. (1sec. to 3sec.)
3) Great operational safety
- Reinforce the insulation in the conduct, by adopting the molded housing in each phase.
- Built in the device making the contacts open first when draw in and out.
- Adopt the tulip-shape connection between the cradle and the VCB.
2. Type: LVB
3. Ratings
- Rated voltage: 7.2kV, 12kV, 17.5kV, 24kV
- Rated normal current: 630A, 1250A, 2000A, 2500A
- Rated short-time withstand current: Max. 40kA
4. Wide range of accessories (optional)
5. Applied standard: IEC 62271-100 (M2, E2(List1), C2 class)
6. Certification: KEMA, KERI
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| ... products without technical information |
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|
|
DRIESCHER - Outdoor Switch-Disconnector
Type FLa 15/97
• Rated voltage 12 kV, 24 kV, 36 kV and 38.5 kV
• Rated current 400 A and 630 A
• 1-pole and 3-pole design
Contrary to former outdoor load-break switches in which it was common practice for the arc to be extinguished in oil, with the new developed outdoor switch-disconnector FLa 15/97 arc extinction takes place in a vacuum interrupter.
Based on a patented insulating system there is also no liquid or gaseous medium required for the external insulation strength of the vacuum interrupters.
The vacuum quenching device is embedded in a weather-proof insulating housing.
This switchgear is therefore also recommended for special applications (e.g. in water protection areas).
The outdoor switch-disconnector is capable of switching on its rated current as well as its rated short-circuit making current via the main contact system.
The disconnecting process is implemented via the shunt-connected vacuum interrupters, resulting in no external arcing phenomena.
A fully developed eccentric make-and-break mechanism operates the vacuum interrupters and ensures Class M2 with regard to the mechanical strength (corresponds to 5000 mechanical operating cycles).Fefer brochure 766e
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