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Shunt Sensors

Profile:Manufacturer - Producer|Ref:PSL105750YH | Country: China | Currency: | Export: No

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country : China

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. Electron Beam Welding shunt (E-B Shunt) is a new technology product. This technology has strict requirement for manganin and copper 99.9% materials, so it has excellent quality.
Reasonable design is toply important and will save a lot of cost for E-B shunt.
Type G looks like overpass and can avoid the barrier on the terminal block. It is also usually used for the connection between NO. 1 and NO. 4 terminals. It's changed from Type A, too.
Top 10 Advantages

· 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 30ppm from -40℃ +140℃, 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 20 years
· Resistant to lightning strike: It can pass test of 3000A 10ms lightning strike test.
· Smart size and low weight: Even thickness makes packing easily. Transport cost is lower for less weight.
· Lower cost: It is related with the structure. Reasonable design is important for low cost.

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