BEF-KHZPZ1MPA

BEF-KHZPZ1MPA, also known as Busbar Protection Relay, are accessories used in medium voltage distribution networks. Depending on the application field, they can be used for protection against faults such as short circuit and overloads. By using their advanced technolgoy, they are designed to protect the cables, consisting of power copper bars and other feeds, against direct and indirect short circuit damage.

Application Field

The BEF-KHZPZ1MPA protection relay typically serves on three-wire and multi-arm networks designed for single-chip-controlled series operation. It is suitable for the protection of medium voltage distribution networks operating in both the radial and mesh configuration. In addition, it can be used to feed a variety of loads, including motors, transformers, capacitors, and other generators.

The Busbar protection relays are designed to protect busways and overhead lines from short-circuits and overloads. The relay monitors all components of the busway to provide protection for the conductor, the interconnections within the busway, and all loads connected to the busway. It also provides metering of current and voltage on all phases in each busway.

Working Principle

The BEF-KHZPZ1MPA protection relay is based on a differential protection principle. This means that the relay measures current differences between two points on the busbar system—one being the point of origin, the other being the point of termination. When a fault occurs, the currents at the two points, called differential currents, will no longer be equal.

When a fault is detected, the relay will trip a circuit breaker, interrupting the flow of current and disconnecting the faulted area from the rest of the system. The protection relays are designed to operate quickly and reliably, minimizing the duration of a fault and ensuring minimal damage.

In addition to overcurrent protection, many BEF-KHZPZ1MPA models also provide reverse power protection, reverse voltage protection, and phase unbalance protection. Other models are designed to monitor the temperature of the busway, providing safety by automatically disconnecting the network if the temperature rises too high.

Conclusion

The BEF-KHZPZ1MPA protection relays provide important functions in medium voltage distribution networks, providing protection against short circuits, overloads, reverse power, reverse voltage, and phase unbalance. With its advanced technology, theBusbarprotection relay provides reliable protection for all components of the busway, minimizing the impact of power outages.