JC-I200 Tunnel Cable Fault Location System

The system is mainly composed of an online monitoring device for cable insulation and an online monitoring device for cable sheath circulation. The cable insulation online monitoring device is mainly based on the improved dielectric loss factor method + DC component method, which gives an early warning to the insulation of the cable so that the cable can be replaced in time. When the cable line fails, the device can identify the faulty branch online. After determining the faulty branch, the cable fault tester is used to accurately locate the fault point in offline mode. The cable sheath circulating current monitoring device monitors the insulation performance of the high-voltage cable in real time based on the cable sheath ground current monitoring data to prevent cable faults caused by the formation of multi-point grounding, cable breakdown, cable aging, and damage.

Keyword:

Power IoT sensors Smart power distribution Internet of Things Smart cable tunnel gallery Smart power generation Internet of Things Smart Internet of Things

Free consultation telephone:

Product Details

The system is mainly composed of an online monitoring device for cable insulation and an online monitoring device for cable sheath circulation. The cable insulation online monitoring device is mainly based on the improved dielectric loss factor method + DC component method, which gives an early warning to the insulation of the cable so that the cable can be replaced in time. When the cable line fails, the device can identify the faulty branch online. After determining the faulty branch, the cable fault tester is used to accurately locate the fault point in offline mode. The cable sheath circulating current monitoring device monitors the insulation performance of the high-voltage cable in real time based on the cable sheath ground current monitoring data to prevent cable faults caused by the formation of multi-point grounding, cable breakdown, cable aging, and damage.

Current signal sampling frequency: 10MHz×16 channels

Voltage signal sampling frequency: 40MHz×4 channels +40KHz×1 channels

Circulating current signal sampling frequency (for single-core cable): 15 channels 10KHz power frequency sampling

Current single-ended fault location range: ≤17km

System positioning accuracy: 2.125m

Test blind area: ≤5m

Failure early warning accuracy rate: ≥95%

Accuracy of fault line selection: ≥99%

Communication with cloud: wireless 4G communication

System device communication method: RJ45

Cloud server: self-built method to ensure security

System host computer: Advantech ECU-4784

System expansion: can support up to 253 monitoring units in networking

System power supply mode: AC/DC 220V ±20%

System working environment temperature: -25℃~+70℃

Online safe operation of the system:> 80,000 hours

Related Products

Current monitoring sensor of arrester in switchgear


Full current measurement range: 0.050 ~ 5.000mA Full current measurement error: ± (standard reading ×1%+5μA) Record the cumulative discharge times :0 ~ 99 times Power supply: DC24V Communication interface: RS-485

Ground resistance sensor


Power supply: dc6 ~ 12V Range: 0.01 Ω- two hundred Ω  Accuracy: ± 2%rdg ± 3dgt(20℃ ± 5 ℃, below 70% RH) Communication mode: RS485 Protection grade: IP54

High frequency current sensor


Sensitivity: 5pc Detection frequency band: 50KHz ~ 100MHz Signal output: RS485 Installation position: cable connector ground wire Installation mode: clamp type, clamping

Tilt sensor


Range: ± thirty °  Voltage: 9-35v Output mode: RS485 IP67 protection level

Infrared thermal imaging camera of switch cabinet


Thermal imaging resolution: 160 * 120 Visible light resolution: 200W Power supply: dc12-24 V Temperature range: - 20 ℃ ~ 150 ℃ Accuracy: ± 2 ℃ or 2% of the reading (take the maximum absolute value)

Space UHF PD sensor


Detection frequency band: 300 ~ 1500mhz Protection grade: IP65 Collect the discharge amplitude and phase The service life is more than 8 years

Micro weather sensor


Temperature: measuring range - 40 ~ 60 ℃ ° C Accuracy ± zero point one ° C; two Temperature: measurement range 0 ~ 100% RH Air pressure: measuring range: 10 ~ 1300 Wind speed measurement range: 0-75 M / S

Switch cabinet partial discharge sensor (UHF)


The system adopts UHF principle to conduct local discharge monitoring of high voltage switchgear to ensure the effective monitoring data, and increase system reliability. Ultra low power consumption and 485 bus communication mode are adopted. It is applicable to switch cabinet and ring network cabinet. Each cabinet is equipped with one set to realize the power / qualitative measurement of local discharge. It can be directly connected to the system host without the limitation of host channel.)

Switch cabinet partial discharge sensor (UHF + AE two in one)


The system adopts UHF + AE principle Ultra low power consumption and 485 bus communication mode are adopted, It is suitable for switch cabinet and ring main unit to realize the quantity / qualitative measurement of partial discharge

Intelligent air conditioning / dehumidification linkage device


AC / dc220v power supply is adopted Allowable deviation - 20% ~ + 20% Control output node capacity: AC / dc220v, ≥ 8A Support 2-4 independent node output capability

Intelligent light control unit


Output mode: switch type, realize local and remote control of lighting Wall mounted / 2U rack mounted Using brand devices to ensure reliability Size (mm): 480mm long × 85mm wide × 340mm deep

Intelligent water pump control unit


Output mode: switch type, realize the linkage control of water pump Wall mounted / 2U rack mounted, Using brand devices to ensure reliability Size (mm): 480mm long × 85mm wide × 340mm deep

Welcome your message consultation

Our staff will contact you within 24 hours (weekdays), if you need other services, please call the service hotline:0519-85851518