The fixed-value shunt is mainly used for the measurement of large current. Its working principle is similar to the measurement of resistance at the four ends of small resistance. The measured current is reflected by measuring the current pressure drop.Afl-t series constant value shunt is mainly made of manganese copper material and copper terminals with silver alloy after welding. Copper terminals on both sides have a group of current measuring ends and voltage sampling ends respectively. When rated current ≤10kA and structurally ≤50A, it is fixed and installed with plastic base; when >50A, it is fixed and installed directly with copper terminals.When the shunt is used with the pointer ammeter, because the ammeter is actually a millivoltmeter with a resistance value of approximately ohm, it must be connected with a pair of fixed value leads supplied with the ammeter.When a shunt is used with a digital voltmeter, any wire may be used.
Application: telecommunication equipment, electric vehicle, aerospace, charging station, electroplating power supply, instrumentation, dc transmission and transformation systems.
duction range: 1A~50A/ 10mV~800mV;51 a ~ 2500 a / 10 mv ~ 300 mv;2501A~12000A /10mV~100mV, conventional 75mV
2.Environmental conditions: -25 ~ +40℃, relative humidity: ≤80%.
3.Temperature rise: after the temperature rise of the rated current keeps stable for 2 hours, the rated current shall not exceed 80K below 100A;Rated current above 100A temperature rise shall not exceed 120K.
4.Overload performance: 120% rated current value, 2 hours.
thermoelectric effect: not more than 50% of the grade index. 5.precision grade: 0.2 level, 0.5 level.
