Distributed fault location monitoring and pre-alarm system for transmission lines-Jiangsu jotry Electric Technology Co., Ltd.

Distributed fault location monitoring and pre-alarm system for transmission lines

The distributed fault diagnosis system of the transmission line obtains the traveling wave current at the time of the fault through the monitoring terminals installed on the conductors in a distributed manner, determines the fault location, and uses intelligent identification technology to analyze the fault waveform characteristics and identify the fault as a lightning fault or a non-lightning fault. In the case of a lightning failure, a lightning shielding or counter-strike failure will be further separately issued. The transmission line fault diagnosis method based on distributed monitoring overcomes the shortcomings of traditional methods that require the installation of monitoring equipment on the poles and towers one by one. You only need to install a set of monitoring devices every 20 to 30 kilometers across the entire line to achieve full line fault monitoring. The current technology is advanced and practical, lightning strike/non-lightning fault identification and location system.

Keyword:

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

Category:

Power transmission IoT sensor

Free consultation telephone:

0519-85851518

Message

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