Lead Power Factor Relay JRR 011

Additional Details

The R-Phase line current input to the relay is derived from the line CT. The R – B line voltage is scaled to relay rated voltage using transformers. The relay measures the phase angle between R-Current and R-B voltage. The output contact operates when PF reaches lead condition after fixed operating time of 60s. The output contact, release when PF reaches lag condition after fixed operating delay of 60s. The aux supply required for the operation of relay is derived from the voltage input hence no need of dedicated power source. The relay displays power factor, line frequency, phase angle between line current and voltage. 

Features:

Software based design

Display of Power factor, Phase angle and frequency

Dust proof enclosure

Draw out type.

Application:

JRR 011 is used to trip (dis-connect) the capacitor bank from the line during lead power factor in the system.

Over Load Ratings:

Current input :

2 times rated continuous

20 times rated for 3s.

40 times rated for 1s

Burden:

Current input :

Less than 0.05VA at rated 1A

Less than 0.2VA at Rated 5A