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Lead power factory relay - JRR 011
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) capacitor bank from
the line during lead power factor in the system.
Principle of Operation:
The R-Phase line current input to relay is derived from the line CT. The R – B line voltage 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.
ACCURACY:
| PF |
: |
± 0.02 or ± 2° |
| Frequency |
: |
± 0.05 Hz |
RATINGS:
| Voltage |
: |
110V or 415V AC |
| Current |
: |
1A or 5A |
| Frequency |
: |
50Hz ±5Hz |
CONTACT RATINGS:
| Contacts |
: |
5A at 24V DC / 230V AC
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CONTACT DURABILITY :
| Unloaded contact |
: |
1,000,000 Operations |
| Loaded contact |
: |
100,000 Operations |
MECHANICAL DESIGN :
| Weight |
: |
App. 2kg |
| Case size |
: |
144sq mm with depth 232mm |
| Installation |
: |
Flush mounting |
| Panel cutout |
: |
138mm x 138mm |
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OVER LOAD RATING: |
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| Current input |
: |
2 times Rated continuous |
| |
: |
20 times Rated for 3s |
| |
: |
40 times Rated for 1s |
| Voltage input |
: |
2 times Rated continuous |
BURDEN :
| Current input |
: |
Less than 0.05VA at rated 1A |
| |
: |
Less than 0.2VA at Rated 5A |
| Voltage input |
: |
Less than 10 VA |
ORDERING INFORMATION :
| Current rating |
: |
1A / 5A |
| Rated voltage |
: |
110V AC or 415V, 50Hz., AC |
| Relay type |
: |
JRR 011 |
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