| Customization: | Available |
|---|---|
| After-sales Service: | Warranty Certificate |
| Warranty: | Warranty Certificate |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
XHJK531 Overhead cable fault detector
XHJK531 is suitable for overhead lines of small current grounding systems. After the single-phase ground fault occurs on the line and stops, the equipment can be used to accurately locate the grounding point.
The complete set consists of a transmitter, sensor, receiver and accessories. After fault cable stop work, the transmitter applies an ultra-low frequency and high voltage signal to the line to reproduce the fault. The sensor is connected to the line detection signal with an insulating rod along the line, and wirelessly transmits data to the receiver on the ground, and receives the data. The machine displays the measurement results. Before the fault point, the current continues to exist, and after the fault point, the current disappears. You can make a rough test and then pinpointing to quickly find fault point.
Main Features:
1. Applicable to the distribution network of small current grounding system, detecting single-phase metallic grounding of overhead lines, grounding through arc, grounding through transition resistance and so on.
2. Positioning after the line is out of service, especially suitable for faulty lines with cable branches.
3. Apply a high voltage signal to reproduce the fault, the current signal is stable, and easy to detect.
4. The ultra-low frequency signal avoids the influence of the distributed capacitance of the system and can locate the high resistance fault.
5. Transmitter safety features: high voltage start blocking function, output allows direct short circuit.
6. The sensor uses a high-sensitivity sensor with an open design that eliminates the need for closure and facilitates hooking on the line.
7. Sensor and receiver wireless communication transmission, safe and reliable.
8. The transmitter can be powered by utility power, generators, and sensors and receivers.
9. The transmitter is small in size and light in weight; the sensor is designed to minimize the volumetric weight and is easy to be attached along the line; the receiver is a hand-held design.
10. The receiver uses a large-screen LCD display that displays sensor status, current waveforms, and current values.
Technical Specifications:
| Detection method | Clamp CT, integral method |
| Transfer method | 433MHz wireless RF transmission, the transmission distance is about 30m |
| LCD size | 62mm×44mm |
| Device size | Length100mm×Thickness35mm×Height204mm |
| Jaw size | Ф50mm |
| Measuring range | 0.1mA~1200A(50Hz) 0.1 mA~200 mA(22Hz) |
| Sampling frequency | 2 times/sec |
| Resolution | 0.1mA |
| Test accuracy | ±2%±5dgt (23ºC±5ºC,below80%RH) |
| Data storage | 99 groups, the "MEM" symbol indicates during the storage process, and the "FULL" symbol flashes to indicate that the storage is full |
| Line voltage | The line is charged not more than 35kV (operated with insulating rod) |
| Data retention | In detection mode, press the HOLD key to hold the data, the "HOLD" symbol will be displayed, and then press the HOLD key to cancel the hold |
| Data access | "MR" symbol indicates that the stored data can be paged up and down |
| Over-range overflow display | "OL A" symbol display |
| No signal indication | Dynamically display the "no- -" symbol when the hand copy device does not receive the transmitted signal |
| Automatic shut-down | If not detected, the device will automatically shut down after about 15 minutes |
| power supply | DC6V 4 AA alkaline batteries, wireless reception: 5 1.5V AA alkaline batteries |
| Battery voltage | When the battery voltage is lower than 5.4V, the low battery voltage symbol will be displayed to remind you to replace the battery |
| Device weight | The total weight of clamp meter and hand copy machine is 2.5Kg (including insulating rod and battery) |
| Working environment temperature and humidity | -10ºC~40ºC; below 80%Rh |
| Storage environment temperature and humidity | -10ºC~60ºC; below 70%Rh |
| Interfere | No interference from 433MHz co-channel signals |
| Insulation rod size | Telescopic insulating rod 4 meters/section (4 sections) |
| Dielectric strength | AC 40kV/rms (Between the insulating rod and the clamp core) |
| Structure | Anti-drip type II |
){kind=link}