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Intelligent Power Monitoring Device Fault Indicator Fault Backtracking JYL-60

Minimum Order Quantity : 100 Price : 5000 CNY (Negotiable)
Packaging Details : Carton Packaging Delivery Time : 30 days
Payment Terms : T/T Supply Ability : 2000 per day (based on the number of the order)
Place of Origin: Changsha, Hunan Brand Name: Willfar Information Techonology Co., Ltd.
Certification: DL/T 721-2013 Model Number: JYL-60

Detail Information

Line Current: 3kV~35kV Load Current: 0.5A~630A
Short-circuit Current: 20kA/2s Wire Diameter: 8mm~41mm
Normal Operating Temperature: -40℃~+70℃ Maximum Operating Temperature: -45℃~+75℃
Relative Humidity: 10~100% Pressure: 63.0kPa~108.0kPa
High Light:

fault indicator


faulty sensor

Product Description

Power Monitoring Device Fault Indicator JYL-60



-                Company Profile

Willfar Information Technology Co., Ltd.

- Established in 2004;
- Listed on the STAR Market of the Shanghai Stock Exchange in December 2019;
- Leading supplier of meter reading (AMI) equipment and operation service;
- The first company to develop "One DCU Reading Multi-meter" solution in China;
- The first company to have large-scale application of technologies and systems like "CPU smart-card Charge and Control", "One DCU Reading Multi-meter", LoRa-based RF Communication and "District Metering Area (DMA)”




- Fault Indicator JYL-60 could help users (including commercial or personal users) to realize fault backtracking and support big data analysis.


- JYL-60 enables the users to intelligently manage and locate the incidents happening among power lines. 


- The highlight function of JYL-60 is "Advance Alarming" to prevent disasters. 



Technical Parameter


Item Parameters
Working Voltage I3kV~35kV.
Load Current 0.5A~630A
Maximum Short-circuit Current 20kA/2s
Wire Diameter 8mm~41mm (refer to insulated wire, bare conductor)
Normal Working Temperature -40 ℃ ~ + 70 ℃
Limit Working Temperature -45 ℃ ~ + 75 ℃.
Relative Humidity 10~100%
Atmospheric Pressure 63.0kPa~108.0kPa
Reset Time 1h~48h (default 24 hours), intelligent resetting (resetting immediately after power supply is restored)
No. of Actions 3000
Protection Level IP67
Weight ≤ 1000g
Service Lifespan 10 years
Wireless Communication Distance ≥ 100m
Event Recording Current, electric field recording
Zero-sequence Current Synthetizing Applicable
Telemetry Accuracy 0A~20A, the measurement error: ±0.5A
20A~100A, the measurement error: ±1A
100A~600A, the measurement error: ±1%
Accuracy of Three-phase Synchronization ≤50 μ s
Static Current ≤ 80uA
Dimension 117*117*181.7mm
Case Design

Sealed design

Waterproof and UV-proof, fire-retardant material





DL/T 721-2013




1. Local communication:

- The acquisition unit and the remote transmission collection unit on the line can communicate wirelessly, and the communication distance is more than 100 meters.


2.Ways to detect short circuit faults:

- The over-current catastrophe method: automatically tracks the load current without setting the operation parameters.

- The over-flow break method: can prevent the misoperation of reclosing inrush current and the sudden change of small current.


3. Detect grounding fault:

- Detect transient current at the moment of grounding and identify grounding fault.


4 Double CT structure:

- The electronic current transformer is used for measurement; the electromagnetic transformer is used for power collection, which increases the measurement accuracy and operation stability.


5. Three-phase time recording function:

- The synchronization progress of three-phase recording ≤50uS.

6. Zero-sequence current synthesis:

- The zero sequence current criterion is introduced into the grounding detection criterion to increase the accuracy of grounding detection.


7. Low battery voltage alarm.


8. Full-function 4A operation when battery free:

- For the data acquisition unit with battery failure, as long as the line current is greater than 4A, data acquisition unit will run with full function.


9. Bulk backup capacitance:

- When battery is full, the backup capacitance could maintain the full function data acquisition unit for 12 hours.


10. Auto-reset:
- 1min~48h optional for factory-setting, or intelligent restore (restore immediately after power supply resumed). 


11. Hot-line handling:

- Not requiring special tools, standard insulated operating rods.


12. Display mode:

- LED light, flashing light.




Applicable to the power distribution automation renovation of the overhead line of 10kV distribution network, it can realize the function of judging short circuit and grounding fault, and has the function of recording wave, to realize fault backtracking and support big data analysis.


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