| Customization: | Available |
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| Type: | Electromagnetic |
| Output Signal Type: | Analog Output |
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In recent years, the country's mandatory regulations on electrical fires in various industries have made the DC power supply system have a lot of room for development. The DC power supply system is widely used in various power plants, communication base stations, circuit breaker control power supplies in the field of fire protection, emergency power supplies, etc., In the DC system, the DC leakage current sensor is an indispensable and important component. It detects the DC leakage current of the equipment and is widely used in DC transmission, power storage detection, DC screens, power supplies, large medical and health equipment, photovoltaics, Wind power generation, communication base stations and other industrial equipment. The DC leakage current sensor is a measurement module that uses the principle of fluxgate to convert the measured DC current into a DC current or voltage signal that is output in proportion to the current.
DC leakage current sensor is a measuring module that converts the measured direct current into the proportional direct current or voltage signal according to the fluxgate theory and the input side is highly insulated from the output side. Typical outputs include 4-20mA, DC0-5V and DC0-10V signals. These standard signals can be acquired by various devices such as PLC, RTU, and DAS cards and used for different current monitoring applications.
Leakage current transformers surround the outlet + and - of the DC circuit. It detects output signals of sensors in circuit branches. If the insulation in circuit branches is normal, the current passing the sensor must be equal in the opposite direction. The output signal is zero. If a circuit branch is grounded, the differential current passes the leakage current transformer and the output of the sensor is not zero.
Therefore, it is possible to identify the grounded branch in the DC system by detecting output signals from circuit branches. The theory guarantees accurate line identification and prevents the influence of distributed capacitance.
| Specification | Rated current | Power supply | Rated output | Aperture | Precision |
| AHLC-LTA | DC 10mA~2A | ±15V | 5V | φ20mm | 1 |
| AHLC-EA | DC 10mA~2A | ±15V | 5V | φ40mm | 1 |
| AHLC-EB | DC 10mA~2A | ±15V | 5V | φ60mm | 1 |
Size Spec. |
Outline size(mm) | Through size(mm) | Mounting size(mm) | Figure | ||||
| W | H | D | Φ2 | Φ1 | M | N | ||
| AHLC-LTA | 68 | 57 | 20 | 50 | 20 | 52 | 52 | Fig.1 |
| AHLC-EA | 100 | 108 | 30 | 75 | 40 | 78 | / | Fig.2 |
| AHLC-EB | 120 | 112 | 30 | 94 | 60 | 98 | / | Fig.3 |
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