DC Leakage Current Sensor

• Type: Electromagnetic
• Output Signal Type: Analog Output
• Production Process: Integration
• Material: Metal
• Accuracy Grade: 1.0G
• Application: Ad, DSP, PLC, Energy Meter
• Model NO.: AHLC
• IP Rating: IP30
• Certification: IEC, RoHS
• Customized: Customized
• Input: 10mA-2A
• Output: 5V
• Auxiliary Power: +15V, -15V
• Transport Package: Carton
• Specification: AHLC
• Trademark: Acrel
• Origin: China
• HS Code: 9030339000
• Production Capacity: 200000

Product Description

Product Description

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.

The leakage current sensor is installed around the positive and negative outgoing lines of the photovoltaic DC circuit. When the device is running, the signal output by each branch sensor is detected in real-time. When the branch insulation is normal, the current flowing through the sensor is equal in magnitude and opposite in direction. The output signal is zero; when the branch is grounded, the leakage current sensor has a differential current flowing, and the output of the sensor is not zero. Therefore, by detecting the output signal of each branch sensor, the grounding branch of the photovoltaic DC system can be judged. This principle has high precision in line selection and is not affected by the distributed capacitance of the line.

Specification

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

 

Dimension

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

Notes:

1. When the hall sensor is used, in order to obtain better dynamic characteristics and sensitivity, attention must be paid to the coupling between the primary side coil and the secondary side coil. It is recommended to use a single wire and the wire completely fills the hall sensor module wire hole;

2. When the hall sensor is used, the best measurement accuracy can be obtained under the rated input current value. When the measured current is far lower than the rated current To obtain the best accuracy, multiple turns can be used for the primary side, i.e. IPNP = rated ampere-turns. In addition, the temperature of the primary side feeder shall not exceed 80 ºC;

3. The auxiliary power supply of the Hall current sensor shall not exceed ± 20% of the calibrated value when it works normally;

4. Hall current sensor shall not fall from a high place (≥ 1m) during installation and use;

5. It is unable to adjust the zero point and full degree adjustment potentiometer;

6. Auxiliary power supply needs to be configured by itself;

7. The positive and negative poles of the power supply cannot be reversed

Wiring

 

Installation Instructions

After Sales Service

Certifications

 

Company Profile

Acrel Co., Ltd.[stock code: 300286.SZ] is a high-tech enterprise that integrates R&D, production, sales, and service, since its establishment, is committed to providing users with energy efficiency management and powerful security system solutions. Acrel Electric has a complete production line from cloud platform software to sensors.

Acrel energy efficiency management system including substation operations and maintenance cloud platform, electricity safety management cloud platform, Environmental equipment power consumption monitoring cloud platform, prepaid management (system) cloud platform, intelligent power distribution monitoring system, power quality management system, building energy consumption management system, industrial energy control platform, leakage power monitor and control system, fire-fighting device power monitoring system, fire-proof door monitoring system, emergency lighting and evacuation indicating system, EV charger management system, data center power&environment monitoring system, smart lighting control system, IT isolation power supply system and related products.

The company attaches great importance to product quality and innovation. By the end of 2018, the company has 5 trademarks, 18 invention patents, 72 utility model patents, 94 appearance patents, and 147 computer software Copyrights, and has participated in the formulation of national or industrial standards.