Product Profile of Over Current Earth Fault Relay

Larsen & Toubro Limited offers Over Current Earth Fault Relay, model PFC-14. Larsen & Toubro Limited is ISO 9001 certified. The Over Current Earth Fault Relay has been manufactured for maintenance of power factor under various loading conditions. The Over Current Earth Fault Relay displays power factor correctly even in the existence of harmonics. This Over Current Earth Fault Relay is capable of functioning with various capacitor configurations. This Over Current Earth Fault Relay provides hunt-free operation. This Over Current Earth Fault Relay increases the capacitor bank life. The Over Current Earth Fault Relay is user-friendly. The Over Current Earth Fault Relay rings an alarm in case of poor power correction. The Over Current Earth Fault Relay comes with the following features:

• Power factor display

• Microcontroller based.

• Under voltage lock-out.

• Over voltage protection

• Auto / Manual operation.

• Desired power factor settable.

• Desired number of banks settable.

• Rotational switching of capacitors.

• Maximum of 8 / 14 capacitor banks.

• Automatic capacitor bank switching

• Alarms for over compensation / under compensation.
Technical Specification of the Over Current Earth Fault Relay are as follows: Rating

• Current In: 1Amp or 5Amp

• Frequency:

• 50 Hz -2.5Hz

• 50 Hz +2.5Hz

• Aux. Power supply:

• 88V to 264V AC/DC

• 20V to 110V AC/DC or
Settings

• Current Is: One of the three ranges [user selectable]

• Applicable for MC12A:

• 20 percent to 80 percent of In in steps of 4 percent

• 10 percent to 40 percent of In in steps of 2 percent

• 50 percent to 200 percent of In in steps of 10 percent