LCD Display Motor Voltage Protection Relay With Multi Protective Function
Our Electronic motor Voltage protective Relay Product Feature
1, Built-in high-performance micro controller with high reliability and Strong resistance to interference.
2, Voltage value and fault message displayed through LCD.
3, Protection against over-voltage, under-voltage, phase failure, Unbalance and phase sequence is available.
4, Protection parameters are set through keys, and the protection Function can be turned on and off freely.
5, True RMS value measurement, voltage measurement accuracy ≤ 1%.
6, Measurement frequency 45Hz~65Hz.
7, Three-phase voltage value query through keys.
8, Testing and manual reset can be conducted through keys.
9, Three-phase four-wire system features N-phase failure protective
| Parameters |
Setting range |
Step |
Factory default |
Remarks |
| Over-voltage operation value |
0FF-381V~500V |
1V |
437V |
M415 |
| 0FF-221V~300V |
1V |
253V |
M240 |
| Over-voltage delay time |
0.1~20s |
0.1s |
2s |
|
| Under-voltage operation value |
260V~379V off |
1V |
323V |
M415 |
| 150V~219V off |
1V |
187V |
M240 |
| Under-voltage delay time |
0.1~20s |
0.1s |
2S |
|
| Unbalance Ratio |
OFF-5%~20% |
1% |
8% |
|
| Unbalance Delay time |
0.1~20s |
0.1s |
2S |
|
| Phase sequence protection |
ON-OFF |
|
ON |
|
| Start-reset delay time |
0.3-30S |
0.1S |
0.3S |
|
| Automatic |
ON-OFF |
|
ON |
|
| Note: " ON" means activating protection function, and " OFF" means inactivating protection function. |
Phase failure and phase equence function diagram
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Q1.Are you a factory or trading company ?
A:We are a factory founded in 2010 and have over 10 years'OEM and international trading experience .
Q2.What's your main product?
A:Our main products are time Relay, voltage Relay, motor protector, current relay,solid state relay
Q3.Do you accept OEM or ODM?
A:Of course.
Q4.What's your main payment term?
A:T/T ,LC ,D/P.
Q5.Any quality guarantee or after-sales service?
A:All the products have 2 years' Guarantee. If any quality complaint , we will give out solution within 5 days
Q6.Can sample fee be returned back to me ?
A:Sample amount can be deducted from your bulk order payment when order quantity is over 1000 pieces at the first time.
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