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)
An active voltage divider ensures constant gain up to a mean anode current of 100 µA, the maximum permitted in most photomultiplier types. Power consumption is typically 100 mW making them particularly suited to portable instrumentation.
An active divider consists of a string of high impedance resistors connected in parallel with a string of FETs. The resistors provide reference voltages for each stage of the active string to pick off and apply to the dynodes. An ideal active divider is one that can sense these voltages over the full dynamic range of anode currents without unwanted load effects.
Medium and high voltage electrical equipment
