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
