Introduction: | | It is a 3 Phase 3 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 3 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/3 W, 110/240/380/415 V AC ±20%; 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; Mounting (L x W) 67 x 46 |
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