JYW-KK type fault indicator automatic warning Solar powered ISO IEC
CB 6～35kV IPX7 made by KNKONG-ELECTRIC
Product Introduction
Advantages
Be the first to apply Roche coils into this type of indicator, It
has great linearity of test data and is not affected by wire
diameter, thus guarantee test accuracy;
The "energy module" which use the anti-corrosion and
high-permeability material with low-power system design enables the
battery-free full-function operation at a primary current of 2A;
The three-level power architecture (CT power supply,
supercapacitor, and disposable lithium battery) constitutes the
power supply system let the equipment operates 24/7;
High-protection level "collection unit", withstands temperature
shocks and long-term blisters, ensuring long-term outdoor working
reliability;
Both the collection unit and the acquisition unit can be controlled
remotely and wirelessly;
Company
Responsibility: Production research and development MV& LV switch ,
outdoor&indoor VCB, power distribution terminals (DTU, FTU).
Year of establish: 10th-June-2009
Registered capital:RMB102,000,000 (USD 15,000,000 )
Company License: 91410104689749184A
Manufacturing workshop area:20,000 square meters
Company nature:private enterprise
Number of Employees:180
Senior engineer:20-30
Annual sales volume on 2019:RMB200,000,000 (USD 26,000,000)
Technical Parameter
| Item | Parameter |
Applications | Voltage | 6～35kV |
| Neutral grounding method | Various grounding methods are available |
| Wiring type | Overhead insulation and bare wires 35mm²～240mm² |
Collection unit power supply | Main power | Solar power supply (the rated output voltage of the solar panel is
18V, and the capacity is based on necessary) |
| Backup power | Rechargeable battery: Lithium iron phosphate or lead-acid colloid
battery is dependent on necessary. All hardware design is compatible for them both. |
Acquisition unit power supply | Main power | Line self-powered (5A full-function operation) |
| Backup power | Disposable lithium battery 3.6V, 8.5Ah |
| Time of duration of the supercapacitor battery> 12 hours |
| Static power dissipation | Acquisition unit | ≤40uA |
| Collection unit | ≤0.2VA |
| Telemetry accuracy | Current | 0～100A, measurement accuracy:±3A 100A～600A,measurement accuracy:±2% |
| Fault detection | Recognizable fault type | Short circuit between phases, various single-phase grounding |
| Instantaneous faults and permanent faults |
| Recognition minimum recognition time | 0.2s |
Line status indication | Indication | 360° omnidirectional bright LED |
| Flashing time after an outage | ＞2000h |
| Fault reset method | A timed automatic reset can be set from 1 to 48 hours |
| Power-on automatic reset and remote manual reset |
Local communication | Frequency band | 430～480MHz |
| Communication distance | ＞50m |
| Transmit power consumption | ＜25mA@+10dBm |
| Receive power consumption | ＜3mA |
| Communication frequency | 150kbps |
| Mechanical properties | Weight | ＜1kg |
| Protection level | Acquisition unit IPX7；Collection unit IPX5 |
| Working environment | Temperature | -40℃～70℃ |
| Humidity | 10%～100% |
| Service life | Operating | ＞8 years |
| Failure-free time (average) | MTBF≥70000h |
