ABB AMVAC Technical Manual
Vacuum circuit breaker with magnetic actuator mechanism
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Also See for AMVAC:
- Installation and operation manual (50 pages) ,
- Manual (23 pages) ,
- Technical manual (16 pages)
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Summary of Contents for ABB AMVAC
- Page 1 AMVAC Vacuum Circuit Breaker with Magnetic Actuator Mechanism...
- Page 2 • Capacitor switching • Retrofit applications to replace existing circuit breakers in repetitive duty applications AMVAC circuit breakers have been fully tested to the most recent versions of ANSI C37.04, C37.06, and C37.09. Using "k" factor equals 1 as the test criteria.
- Page 3 The AMVAC is truly the next generation in medium voltage vacuum technology. With the AMVAC, ABB is the first to combine the unique requirements of vacuum interrupter technology to a stored energy mechanism designed to exploit these capabilities. Using a flux-shifting device with integral permanent magnets, the AMVAC mechanism has just seven moving parts.
- Page 4 Magnetic actuator inward to unlock the circuit break- er from the breaker compartment. Electronic controller The AMVAC circuit breaker is Auxiliary contacts designed to provide many years of trouble free service for the end Electrical energy storage user.
- Page 5 AMVAC. Qualities that convince. Maintenance free vacuum interrupter and current carrying parts in one embedded assembly. 27 kV 15 kV 5 kV Innovation extends to the vacuum interrupter assembly, as well. For the first time in any vacuum circuit breaker, the interrupter and the current carrying parts are completely embedded in a proprietary epoxy resin.
- Page 6 All operating mechanism functions are integrated in the magnetic actuator of the AMVAC circuit breaker. The actuator is a bi-stable magnet system, in which armature change-of-state is Magnetic latching in a accomplished by the magnetic field of two limit position.
- Page 7 AMVAC. Circuit-breaker of the high tech generation. Proximity sensors provide highly reliable armature position information to the electronic controller. The electronic controller uses robust components and circuit board con- forming coatings to prolong the life of the device. The electronic con- troller will operate on AC or DC control power because it utilizes an AC to DC converter internally.
- Page 8 AMVAC. Technical data. Table 1-Short Circuit Ratings: RATED NOMINAL RATED MAX LOW FREQ IMPULSE RATED SHORT SHORT TIME CLOSE & RATED VOLTAGE BREAKER CONTINUOUS VOLTAGE VOLTAGE WITHSTAND LEVEL (BIL) CIRCUIT CURRENT LATCH RANGE FACTOR TYPE CURRENT A CLASS kV rms...
- Page 9 • Trip on declining capacitor voltage The AMVAC circuit breaker is shipped with these standard features disabled; the end user may enable the features he chooses by moving the appropriate 'dip' switch to the 'on' position. The following electronic controller 'dry contact' (250 VAC and VDC, 200 mA) outputs wired to the circuit breaker secondary disconnects are optional at extra cost: •...
- Page 10 AMVAC. Circuit breaker specifier's guide. General The Circuit breaker shall be an ABB AMVAC or approved equal, three-pole, drawout (or stationary) type, electrically operated with stored energy magnetic actuator operating mechanism. The circuit breaker is intended for use as a general purpose device in accordance with the latest revisions of the following ANSI standards applying to 5, 7.5, 15, or 27 kV applications: ANSI C37.04, C37.06, and C37.09.
- Page 11 Dimensions for 5 kV & 15 kV Breakers Option: Two normally open 'a' and normally close 'b' contacts located on Contact factory for 27 kV Breakers the electronic controller shall be furnished. These 'dry' contacts change state as the circuit breaker main contacts change state. The circuit breaker shall have a flag to indicate open or closed position.
- Page 12 ABB Inc. MV Service 2300 Mechanicsville Road Florence, SC 29501 Tel: 1-800-HELP-365 option 7 or +1-407-732-2000 www.abb.us/mvservice...