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Over the past century, GE has designed and manufactured literally tens of thousands of medium and high voltage circuit breakers. Although many of the older designs are no longer manufactured, many units remain in service. GE can deliver solutions for these breakers without the cost and downtime associated with complete equipment replacement. If you have any of the following breakers in service, we can provide parts or engineered solutions to support your maintenance needs:
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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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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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The heart of the GE PowerVac® circuit breaker is the vacuum interrupter. 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.
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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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Lower operating costs and increase automation capabilities by replacing older electromechanical relay schemes, control switches, and metering devices in one device. Provides sensitive, secure combination of phase, negative-sequence, residual-ground, and neutral-ground overcurrent elements, including directional control, and programmable US and IEC time-current curves for complete distribution system protection. Large front-panel keyboard with local display panel and programmable operator control interface pushbuttons replaces control switches, indicating lamps, and wiring at the breaker control panel. Available with optional power elements, sensitive directional earth fault elements, voltage sag, swell, and interruption records.
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SIPROTEC 7SV600 is a numerical relay used for circuit-breaker failure protection. It is suitable for use at all voltage levels and in all applications.
Protection functions
• Circuit-breaker failure protection (single or three-pole with/without current)
• Independently settable delay times for operation with and without current
• Single or two-stage time delay of the busbar trip command
• Re-trip (cross trip) stage (1st stage of the 2-stage operation)
• Intertrip facility (via teleprotection interface)
• End-fault protection with intertrip
• “No current” control using the circuit-breaker auxiliary contacts
Features
• Highly sensitive current detection
• 2-out-of-4 check of the current detectors
• Short reset time, negligible overshoot time
• Can be initiated by phase-segregated or common-phase trip commands
• End-fault protection
• Assignable output relays, LEDs and binary inputs
Monitoring functions
• Monitoring of circuit-breaker auxiliary contacts
• Operational current measured values
• Self-supervision of the relay
• Event buffer
• Fault protocols
• Oscillographic fault recording
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7PA30 single phase is for the supervision of the trip circuit of a circuit breaker with one trip coil. While 7PA30 three phase is for the supervision of the trip circuit of a circuit breaker with three selective trip coils.
The trip circuit wiring is supervised from the positive supply to the negative supply whilst the circuit breaker is open or closed.
The design, quality and rugged construction of the relay make it suitable for applications requiring high levels of reliability/dependability.
The high degree of protection guarantees reliable operation over a wide temperature range, even under extreme environmental conditions. The relay has been tested in accordance with IEC, EN and IEEE standards. The relay is CE marked.
The supervision current is always less than 1,4mA thus avoiding unwanted operation of the trip coil. Correct operation is shown via a green LED.
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Tcs 1 - Tcs 2
The TCS is devoted to control the MCCB's disconnection circuits (trip) or the safety circuits. TCS1: circuits 24-48Vac/dc / esec. DIN rail 3 modules TCS2: circuits 110-230Vac/dc - 400Vac / esec. DIN rail 3 modules.
Modular Relay (3 modules DIN 17,5 mm) for permanent control of safety circuits, according with the Standard CEI 64-8/537.4.3, for 24÷400 V ac/dc.
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Circuit Breakers are one of the critical "safety-valves" of electrical systems and basic maintenance procedures are essential to maintain maximum reliability. As the leading producer of circuit breaker test sets, Megger sets the standards of quality and reliability. New technology is incorporated in the circuit breaker test equipment with the launch the DDA (Digital Data Acquisition) series of circuit breaker test sets. The DDA controller utilizes digital signal processing (DSP) technology along with variable firing angle and pulse duration control to bring improved accuracy and flexibility to the curcuit breaker testing arena. Megger test sets are available for every budget and test application.
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E-Ze TEST NON-TRIP EARTH LOOP IMPEDANCE TESTER - EZ2100 - £199.00
A revolutionary new 17th Edition tester with T-Safe™
non-trip earth loop impedance check.
The E-Ze Test performs:
• non-trip earth loop test
• voltage test
• socket test
Test readings scroll through in sequence on the clear,
back lit, 32 character display to show socket problems,
or high/low voltage conditions. Then the earth loop
impedance test result is displayed.
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Earth Leakage and its associated hazard can be prevented by residual current circuit breakers (RCCBs), also popularly known as Earth Leakage Circuit Breakers. RCCBs operate by comparing the current flowing into an appliance with the current flowing out. A discrepancy will cause the breaker to trip and disconnect the apliance from the main supply. They are used in both single phase and three phase applications.
The MIG0603CB is a specially designed generator for impulse test on circuit breakers. The following waveshapes can be generated:
8/20ìs up to 3000 A
0.5ìs 100 kHz up to 250 A
1.2/50ìs 500 Ohm up to 12 kV
The peak output voltage and current of the MIG0603CB are indicated on the front display. The two BNC monitor outputs (v,i) allow monitoring the voltage and current wave shapes on an oscilloscope.
A coupling and de-coupling network is included to superimpose the SURGE on a two wire power supply.
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Application: Quick Disconnect Ball Joints are used in applications where the housing needs to be easily disconnected from the ball stud. This is accomplished by pulling back the spring-loaded outer housing.
Plating: parts are plated zinc with a yellow dichromate finish.
Specials: Special sizes and configurations are available in volume.
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Patented, transparent rubber sealing boots for lever, toggle, rocker and pushbutton-actuated style circuit breakers. UL, CSA listed models. Ideal for NEMA & IEC electrical distribution & industrial controls, wherever hostile and unforgiving environments exist. IP66/68 rated.
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Relays
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