Product Profile of Power Factor Relay

Larsen & Toubro Limited brings Power Factor Relay. Larsen & Toubro Limited is an ISO 9001 certified company. The Power Factor Relay is manufactured to control the capacitor banks automatically for maintaining the system power factor at a set value, under different load conditions. The Power Factor Relay works with the state-of-art microprocessor techniques for system power factor and measurement of reactive current. This Power Factor Relay provides hunt free operation. The Power Factor Relay is capable to control up to 8 capacitor banks. The Power Factor Relay comes with the following key features:

• Automatic c/k selection

• Multi parameter display

• Short time delay facility

• Protection against fault conditions

• PFR8 works in both 2-quadrant and 4 quadrant operation modes

• Accurate displays of power factor even in the presence of harmonies
Technical Specifications of the Power Factor Relay are:

• Input Current: 1A / 5A

• 5-90 Sec in steps of 10 sec

• PF Setting: 0.8 lag to 0.95 lead

• Rated Frequency: 50 Hz, + or -2.5 Hz

• Supply Voltage: 415V AC +or- 20 percent

• Capacitor step switching on delay:

• Or 100-1200 Sec in Steps of 50 Sec

• Over load capacity: 400 percent of Ib

• Capacitor bank selected for learning: 2 - 4 - 6 - 8

• Selection of operation: Two quadrant or Four quadrant operation

• Short switch ON delay: Enable / disable [30 sec +step switching on delay]

• Safety Lock Out Time: 60 secs + capacitor bank

• Switching delay selected +or-5 percent

• Accuracy of PF Display: 2percfent from 0.7 lag to 0.8 lead [under full load condition].

• Operation Indication:

• `Lag / Lead ` status

• Each capacitor bank.

• Alarm - AUTO / MANUAL