FPSLHLH008M

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FPSLHLH008M is a high-performance relay for protecting both main and secondary power systems against typical overcurrent and overvoltage conditions. It is equipped with an intelligent built in power system protection functionality to ensure safety and reliable operation. The FPSLHLH008M relay can be broadly classified into 3 application fields: overcurrent, overvoltage, and phase unbalance.

Overcurrent Protection: This is one of the most popular protection applications for the FPSLHLH008M. The relay is designed to protect the power system from overcurrents, primarily by relaying a trip signal to the main circuit breaker in case of an overcurrent. The FPSLHLH008M is configured to set the maximum trip current, time delays, and the releasable contact position depending on the short circuit current and voltage ratings of the system.

Overvoltage Protection: This is also a popular protection application for the FPSLHLH008M. The relay is designed to trip the main circuit breaker in case of an excessively high voltage. It provides a precise, adjustable and reliable protection against overvoltages including those from lightning and load switching operations. The FPSLHLH008M’s adjustable time delays and adjustable trip current levels ensure safety and reliable operation during transient overvoltage events.

Phase Unbalance Protection: This is a relatively new application field for the FPSLHLH008M. By detecting phase unbalance, the relay triggers a trip signal to the main circuit breaker when the phase unbalance is above the set value. This ensures the proper distribution of power in the system. The FPSLHLH008M is equipped with adjustable time delays and adjustable phase unbalance settings for optimal protection.

The FPSLHLH008M relay works on an electromagnetic principle. When the overcurrent or overvoltage is detected in the power system, the relay’s electromagnetic core is energized and an electric trip signal is generated. The trip signal is then sent to the main circuit breaker which trips it to isolate the faulted part of the power system. In the case of unbalanced power, the phase unbalance settings are adjusted. The relay then monitors the phase unbalance and trips the main circuit breaker if the unbalance reaches a certain level.

The FPSLHLH008M is a highly reliable and efficient protection relay for both main and secondary power systems. It is simple to install, operate and maintain due to its advanced features and user-friendly design. It provides precise protection against overcurrents, overvoltages and phase unbalance. The adjustable time delays and adjustable trip current/voltage settings ensure safety and reliable operation.

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