| Introduction: |
| It is a 3 Phase 4 Wire Reverse Power Relay. It is best suitable for monitoring the reverse flow of power from the 1 Phase or 3 Phase Generators or Emergency Power Supplies or when motors act as Generators. It senses the direction of power (current) by sensing the reverse Current. The power is calculated as V x I (Reverse Current) x COS f. It is measured by considering 5 Amps as the maximum Reverse Current for 100% Reverse Power. It can be preset from 2% - 20% reverse power. If the current from the Generator becomes reversed and it exceed the setting then the relay trips. | |
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| Features: |
· Adjustable Reverse Power (Current) setting (2% - 20%)
· Suitable for 3 Phase 4 Wire or single phase system.
· Direct Current sensing or through 5A external CT.
· Built in Auxiliary Supply.
· Adjustable Power ON Delay : 1-10 Sec.
· Adjustable Trip Time Delay – 1-10 Sec.
· 1 CO (2 CO) Relay output rated 5A at 230V AC (Resistive)
· Auto / Manual Reset.
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| Application Areas: |
| General panels Motor starter panels HT motor starter panels Power distribution panels 3 phase UPS panels Centrifugal machine control panels | |
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| Technical Specifications: |
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Specifications |
| 1 |
Supply Voltage |
System 3 Ph/4 W, 110/240/380/415 V AC; Auxiliary — |
| 2 |
Ext. Input |
Built-in |
| 3 |
Output contact |
1 CO (2 CO) |
| 4 |
Trip setting |
Under Current —; Over Current —; Under Frequency —; Over Frequency —; Under Power —; Over Power —; Cos-Ø —; Reverse Power 2% - 20% (adjustable) |
| 5 |
Input Current Range |
— |
| 6 |
Power On Delay |
1 - 10 secs. (adjustable) |
| 7 |
Trip Time Delay |
1 - 10 secs. (adjustable) |
| 8 |
Resetting |
Auto / Manual |
| 9 |
Weight |
460 gms. |
| 10 |
Dimensions (mm) |
Overall (L x W x D) 76 x 56.5 x 117.5 x 27; Mounting (L x W) 67 x 46 | |
