Wholesell shunt resistor

Description

E-B shunt has many advantages comparing with ordinary brazing shunt: 

·High accuracy:  Resistance value is very stable, error **5%. It's easy to work out class 1.0 meter with E-B shunt

· Good linerarity: The linerarity is very good so the resistance value changes in a narrow range. Production cost can be reduced because the meter calibration is easier and quicker.

· Long-term reliability:  The manganin and copper are melted to be in one body by high temperature electron beam, so the copper and manganin will never depart in  the operation of the meter.

· Small self-heating: No solder between copper and manganin, so there isn't additional heating on the shunt. Even thickness make the contact resistance smallest. Enough section area and surface area will dissipate the slef-heating quickly.

· Low temperature coinfidence: temperature coinfidence is smaller than *0ppm from **0°C*-***0°C, there is very minor resistance value change at different temperature conditions.

· Resistant to oxidation: Special material is coated on the copper to protect from the oxidation

· Long term stability: The good performance is stable within *0 years

· Resistant to lightning strike: It can pass test of ***0A *0ms lightning strike test.

·Smart size and low weight: Even thickness makes packing easily. Transport cost is lower for less weight.

· Lower cost:  Itis related with the structure. Reasonable design is important for low cost.

Application:

E-B shunt is one of the main current sensor used in kWh meter, especially in single phase kWh meter. It's much more economical than current transformer.