Three Phase Motor Protection Relay Low Power Consumption For Power Distribution System
1. Products Description:
- WD series meter are direct acting indicating analogue electrical measuring instruments. Measuring DC/AC current, voltage, frequency, power, power factor, phase sequence, synchroscope, position indication, network insulation moniroting, hours fun meter and other non-electric measurement;
- Mainly used in various AC/DC transmission and distribution system, power control panel and electric equipment for various industries such as marine,rail, aviation, chemical and explosive-proof,nuclear power, hig/mid voltage equipment, power generator set and control engineering. It is high end meter, and suitable for complicated environment to measure electric/non-electric energy;
- Also used on low voltage equipment, construction/mechanical equipment, various AC/DC power distribution system, electrical control panel and equipment. It is mid/low end meter, and suitable for universal environmental to measure electric/non-electrical energy.
2. Using Instruction:
1). Used for protecting and controlling in generator system;
2). Power consumption: ≤3VA;
3). This relay is convent to use and install. Users should connect the wire at first in accordance with corresponding wiring scheme and provide auxiliary power supply for the relay moudle in line with the specification. Each realy is equipped with the function of time delay. When the signal input from the outside exceeds the preset value and effective, the timer start to work and signal light turns on. Relay start to work after reach preset time.
4). Parameters visible, users are able to set alarm value according to demands.
3. Technical Parameters:
| Item |
Technical Data |
Standards |
| Technical Standard |
GB/T7676-1998 |
IEC60092-50 |
| Environmental Standard |
GB8355-1987 |
IEC92-504-74 |
| Safety Standard |
GB4793-20 |
IEC61010 |
| Working Temperature |
-40-65℃ |
|
| Temperature Infulence |
-13-33℃, 100% comply with accuracy class |
|
| Indicating Angle |
240°-270º (Synchroscope meter: 360º) |
|
| Color of Shell |
Black/white,board frame, terminal plate: black |
|
| Color of Dial Plate |
Black/white(other colors are available) |
|
| Mounting |
Vertical Installation |
|
| Dimension |
110*110mm, 80*80mm |
|
| 96*96mm, 72*72mm, 48*48mm |
|
| Overshoot |
Less than 20% when scale reaches to 2/3 |
|
| Insulation Withstand |
Circuit& shell: AC2600V/1 min(Water area) |
|
| Vibration Resistance |
24.5m/s2 |
|
| Impact Resistance |
147m/s2 |
|
| Material |
Shell/terminal board: ABS; Cover: Transparent Glass |
5. Wiring Diagram

6. Our Advantage:
1). Guarantee of high quality
- Certification of ISO9001:2000, CE, CCS;
- Strict quality control to the whole producing process;
- We are manufacturer, to make sure the first hand materials;
- Semi-finished products check and overall inspection;
- Finished product check and overall inspection;
- Reliable packing
2). Customized Producing
Because of the source manufacturer, it is able for us to produce the items according to customers' requirements.
3). Reliable Team
- Excellent technical team, always ready for questions from customers' side;
- Professional sales team, could make good suggestion in model selection and any markets news sharing;
- Management team: A held meeting held each months, to discuss sales & technical problems, to promote each other;
- Afterservice: 7*24 hours to answer and face any questions.