Current sensors have a wide range of applications in rail transit systems. It can not only be used to monitor the current situation in the power supply system, ensuring the stability and safety of power supply; It can also be used to monitor the current situation of various circuits in vehicles, such as the current of traction motors and the current of vehicle lighting circuits. This helps to detect faults in a timely manner and carry out repairs and maintenance to ensure the safety and operational efficiency of subway vehicles. In addition, current sensors provide critical data for the control and protection of subway systems。
Current sensors play an indispensable role in traction, auxiliary, chopper, subway and other aspects, providing strong support for the safe and efficient operation of rail transit systems.
Traction Inverter
In the traction system of rail transit, current sensors are used to monitor the current of traction motors. By monitoring the working current of the motor in real-time, the current sensor can achieve precise control of the motor, thereby improving its operational efficiency and reliability. At the same time, it can also detect the fault current of the motor, such as overcurrent, short circuit, etc., and timely trigger the protection device to effectively prevent motor damage and ensure the safe operation of the train. The current sensors from Chipsense could be used in the traction system field,, we’ve got a positive feedback from our customers in this field.
Brake Chopper
In energy management systems such as brake choppers, current sensors also play a critical role. It can help achieve efficient utilization of energy and ensure the safe and stable operation of the system. By accurately measuring the current, the current sensor provides critical data for the control and protection of the chopper, thereby ensuring the reliability and safety of the entire system.
| Product No | Primary nominal RMS current(A) | Measuring range(A) | Supply voltage (V) | Secondary output | Accuracy(%) | Output bandwidth | Operating Temp.(°C) | Copper busbar(mm) | PCB | Others |
|---|---|---|---|---|---|---|---|---|---|---|
| CM3A 500 H00 | 500 | ±800 | ±15...24 | ±100...160mA | ±0.5 | 100 | -40~85 | Ø30 | Molex 6410 | |
 CM3A 500 H00
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| CM3A 500 H01 | 500 | ±800 | ±15...24 | ±100...160mA | ±0.5 | 100 | -40~85 | Ø30 | JST B3P VH | |
 CM3A 500 H01
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| CM4A 1000 H00 | 1000 | ±2100 | ±15...24 | ±200...420mA | ±0.3 | 150 | -40~85 | Ø38 | Molex 6410 | |
 CM4A 1000 H00
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| CM4A 1000 H03 | 1200 | ±1800 | ±24 | ±300...450mA | ±0.4 | 150 | -40~85 | Ø38 | JST B3P VH | |
 CM4A 1000 H03
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| CM4A 1000 H05 | 1000 | ±2100 | ±15...24 | ±200...420mA | ±0.3 | 150 | -40~85 | Ø38 | JST B3P VH | |
 CM4A 1000 H05
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| CM6A 1000 B00 | 1000 | ±2000 | ±24 | ±200...400mA | ±0.4 | 150 | -40~85 | Primary copper busbar | 4×M5 threaded bolts | |
 CM6A 1000 B00
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| VN2A 25 P01 | 5mA | 7mA | 24 | ±25mA | ±0.8 | -40~85 | NA | + | ||
 VN2A 25 P01
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| VN2A 25 P00 | 10mA | ±14mA | ±15 | ±25mA | ±0.6 | -40~85 | NA | + | ||
 VN2A 25 P00
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| VN2A 25 P02 | 10mA | ±14mA | 24 | ±25mA | ±0.8 | -40~85 | NA | + | ||
 VN2A 25 P02
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| VN2A 400 PB02 | 400V | ±400V | ±12 | ±5V | ±0.6 | -40~85 | NA | 3 Faston 6.3 x 0.8mm | ||
 VN2A 400 PB02
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| VN2A 800 PB00 | 800V | ±1400V | ±12...15 | ±25mA | ±0.6 | -40~85 | NA | 3 Faston 6.3 x 0.8mm | ||
 VN2A 800 PB00
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| VN2A 800 PB01 | 800V | ±1400V | 24 | 4V | ±0.6 | -40~85 | NA | 3 Faston 6.3 x 0.8mm | ||
 VN2A 800 PB01
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| VN2A 1100 PB00 | 1100V | ±1500V | ±12...15 | ±25mA | ±0.6 | -40~85 | NA | 3 Faston 6.3 x 0.8mm | ||
 VN2A 1100 PB00
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| VN2A 1100 PB03 | 1100V | ±1500V | ±15 | ±4V | ±0.6 | -40~85 | NA | 3 Faston 6.3 x 0.8mm | ||
 VN2A 1100 PB03
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| VN2A 1100 PB20 | 1100V | ±1100V | ±12 | ±4V | ±0.6 | -40~85 | NA | XH-3A | ||
 VN2A 1100 PB20
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| VN3A 6400 M00 | 6400V | ±9600V | ±15...24 | ±80mA | ±1.0 | -20~70 | NA | M5 threaded bolts | ||
 VN3A 6400 M00
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Relying on the CHIPSENSE Electronic technology team and collaborating with Institute of Intelligent Sensing Technology Innovation and Application at North China Electric Power University (NCEPU), we efficiently complete the forward research and development of sensors.
