50-60hz Function Extensive Motor Protection Relay Reverse Power With Unload Function

50-60hz Function Extensive Motor Protection Relay Reverse Power With Unload Function

1. Summary:

NGJ-I/S revser relay (With unloading function) is function extensive relay, it has not only reverse power protective function, but also overload pre-alarming & unload secondary loading function, so it is more common, easy adjustment, light weight, small volume, quality is more stable.

2. Technical Functions:

1). When power system voltage change in ±10% rated voltage, frequency changes in ±5%, it is work normal;

2). Reverse relay power: Voltage: 100V (400V as option), 50/60Hz, A: two phase , power consumption: ＜2VA; Rated current input: 5A, A.C two phase, power consumption: ＜2VA;

3). When reverse power of parallel operation reach 3-15%(continuous adjustment) rated power, time delay 3-10s (continous adjustment), reverse power application start to work;

4). When generator reach to 90-100%(adjustbale), alarm signal instant output (negative power normal open contact), after time delay 10-30s(adjustable), unload signal output;

5). Contact output capacity: Alarming output contact, b: Reverse power output contact, unloading output contact; AC380V/3A, DC28V/10A (resistance load);

6). This equipment has the function of reverse power and un-load self-inspection;

7). Environment temperature: 0-55℃, relative humidy: 95%, slashing, vibrating, oil mist, smoke mist occur during vessel operating;

8). Dimension: 151*106*80mm, Mounting: 140*95mm.

3. Parameters:

4. Standards:

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.

Wei Dian Union(Hubei) Technology Co.,Ltd. Located in Optics Valley of China--- Wuhan East lake high-tech development Zone, established in 2008, with factory area of 5000² and 120 employees, We are the member of National Standardization Committee for Electric Meters & Instruments.

Wei Dian Union are specialized in manufacturing electric measuring instrument and current transformer with a concentration in R&D, Production, sales & after sales, which guarantee us strictly comply with standard of GB/T22264-2008 & GB/T7676-98 to operate. Now , we have ISO9001-2008 certificate, digital meter have passed CE, while marine meter approved by China Classification Society (CCS).

Our products are widely used in transmission & distribution power system of shipping, aviation, railway, oil, chemistry, metallurgy, electric, power station, intelligent building, industrial instrument, etc.

Weidian Union has a great team to service domestic & overseas customers. With the help of university, our technical department are able to share with the newest techonology to promote upgrade of products. Our sales team divided into domestic and international sales, which help customers on pre-selling, sales and after service, make sure to satisfy diversity demands from customers, the team always ready in 7*24 hours. Producing & QC department: Over 3 years' skilled workers,to fulfill the producing, assembling and adjusting works.

With the principle of “Pursuing for precision and perfection, unifying thinking and behavior ”, continuous exploration and innovation to meet customers’ demands. Reliable quality and good after-service receive more and more trust from users.