About the SPM-PF
The SPM-PF Power Factor Regulation and Protection Relay featured here is definable as such as the PF letters are added on the back of the SPM moniker, indicating a non base-model product. While this is true, it is also true that this SPM-PF Power Factor Regulation and Protection Relay does not feature the conformal base PCB coating seen in the SPM-H model specifically. Some of the core functions of this SPM-PF Power Factor Regulation and Protection Relay are:
- Squirrel Cage Protection
- Reduced Voltage Starting
- DC Current Loss Protection
- Power Factor Regulation
In addition to the various protection features described above here, this SPM-PF Power Factor Regulation Relay additionally has control features and functions such as Power Factor (Pull-Out) Protection, Torque Reluctance Synchcronization and Starting and Synchronizing.
SPM-PF Relay Metering
This SPM-PF Relay, while not compatible with brushless motors or units, does have additional monitoring and metering resposibilities, as outlined in original GE Vernova literature. To start off, the SPM-PF offers SPM Displays and Messages which display on its built-in 40-character LED display. In addition to this, the SPM-PF Power Factor Regulation and Protection Relay offers several relevant diagnostic self-tests, such as its:
- Trip relay contacts diagnostics
- System testing
- Squirrel cage protection testing
- Power factor testing
- General synchronization diagnostics