Detail Alstom MVAX 11, 12, 21, 31, 91 Relay
MVAX 11, 12, 21, 31, 91 relay
The type MVAX 11 relay supervises the trip circuit of tripping relays such as the MVAJ or the interposing control relay type MVAW.
The MVAX 11 relay constantly monitors the trip circuit of tripping relays. It is compact and robust in design, has a positive action and no chatter.
Close circuit supervision and built-in alarm indicators
Simple and robustly built, this relay is an armature unit that has a positive action and no chatter. It is equipped with two dropping resistors ( R1 and R2) connected with the coil. If the supervised circuit opens or if the supply fails, the relay will be de-energised and an alarm or visual indication will be triggered.
Continuous monitoring and no false alarms
The compact, robust MVAX 11 provides continuous monitoring of trip circuits. It ensures that no false alarms are indicated during protection operations,
The MVAX relay supervises trip circuiting of circuit breakers and initiates audible alarms and visual indications if the trip circuit fails or the mechanism ceases to operate.
The MVAX trip circuit supervision relays can be applied to monitor circuit breaker tripping circuits. They are compact in design and have a user-friendly interface.
Optimum trip-circuit supervision
MVAX provides trip circuit supervision during breaker close or close and open. It avoids breaker mistripping by accidental short circuits and can ensure that no false alarms are indicated during protection operations.
User-friendly and flexible for maximum protection
Benefitting from a user-friendly interface and flexible operating logic, the MVAX relays are also compact and optimally designed. They ensure protection scheme integrity by closely supervising trip circuiting and signal alarms if mistripping occurs.
* other type will be available on special request
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