April 29, 2011

ACB (Air Circuit Breaker)

ACB Is Air Circuit Breaker.
 
Masterpact, reliability
Merlin Gerin latest technology has produced a new concept for the Power Circuit Breaker. With all the advantages of modular construction in polyester enclosure, Masterpact offers performance that is more than just meeting international standards. Masterpact has a high thermal resistance to enable the workings of the so-called Total Discrimination. This is to ensure continuity of service due to a power source in the event of disruption (short circuit), Masterpact would "suspend" disconnection, before all the circuit breaker on the bottom side cut off (trip). Thus, if such interference can only occur at one point, then the circuit breaker in that area alone is disconnected.
Masterpact, without treatment
Without treatment, Masterpact can be operated as many as 10,000 times on the 1600A.
If it happens 2 times a day trip, then Masterpact to serve the plant for 13.7 years without treatment. Only by changing the contact point and the arc chutenya, Masterpact to operate 20,000 times on the 1600A.

Masterpact, withdrawable

- Circuit breaker can be removed and inserted quickly without removing the power circuit, thus simplifying the treatment
- Can be conducted test / test trip unit

- Position the circuit breaker can be known ("connected", "test", "disconnected")

- By adding the buffer can be formed into a fixed type


 Masterpact NT & NW

 
630 s / d 6300 A
Ics = 100% ICU

5 levels of performance
N1: standard performance

H1: high performance

H2: very high performance

H3: very high performance + high level of discrimination

L1: current limiter
 
Optimal dimensions
- 1 frame size for Masterpact NT, power circuit breaker in the world's smallest

- 2 frame size for Masterpact NW

Arc chute with a new design that is equipped with stainless steel filter

- Absorb the energy generated during disconnection so as to limit the stress that arises in the installation

- Filter and cool the gas produced and reduce splashing out particles that arise at short circuit.


Micrologic, intelligent trip unit

- The function of protection and an integrated measurement

- Display LCDdigital

- Protection system can be set using the dial or keypad (double setting)

- Choice of communication to integrate the circuit breaker into the supervision system, so that the function of protection, control and monitoring can be done remotely


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