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LV D3 多功能相故障繼電器
| Introduction: |
| It is a Negative Sequence Voltage Sensing Phase Failure Relay with Under & Over Voltage Relay. It is best suitable for protection of unbalanced 3 phase loads or for monitoring 3 phase supply of UPS or Invertor. It offers protection against Phase Failure, Phase Unbalance, Phase Sequence Reversal, Under Voltage & Over Voltage faults. It is useful for incoming side, Mains Supply monitoring, General voltage faults, AMF/Transfer Switch Panels & Pump Control Panels. It is available in DIN Rail mounting enclosure. | |
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| Features: |
· Under & Over Voltage (Adjustable).
· Monitors Aux.Voltage for Under & Over Voltage.
· Monitors all 3 phases Voltage for severe unbalanced & phase loss.
· Selectable Aux.Voltage.
· Auto Reset.
· Sleek DIN Rail mounted enclosure.
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| Application Areas: |
| Measures 3-Phase supply for Unbalance Voltage, Loss of Phase, Phase Sequence, Under Voltage & Over Voltage. Best suitable for balance 3 phase loads or motor loads only. Phase failure &UV/OV Relays can be best used for a host of Auxiliary Systems & Plant control panels & machinery. | |
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| Technical Specifications: |
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Specifications |
| 1 |
Supply Voltage |
System 240 / 380 / 415 / 440 V AC ±20%; Auxiliary 220 / 230 / 240 / 380 / 415 / 440 V AC ±20% |
| 2 |
Output Contacts |
1 CO (2 CO) |
| 3 |
Trip Setting (Volts) |
Phase unbalance 40 V ±6 V (fixed); Under Voltage 80% to 95% (adjustable); Over Voltage 105% to 120% (adjustable); Water Level N.A. |
| 4 |
Trip Time Delay |
On Phase Failure 3.5 secs. ± 1.5 sec; On UV/OV Less than 2 secs. |
| 5 |
Resetting Mode |
Auto |
| 6 |
Weight |
400 gms. |
| 7 |
Dimensions (mm) |
Overall (L x W x D) 76x 56.5 x 117.5; Mounting (L x W) 67 x 46 | |
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