JO-OM400B transformer local on-line monitoring system-Jiangsu jotry Electric Technology Co., Ltd.

JO-OM400B transformer local on-line monitoring system

The JO-OM400B transformer partial on-line monitoring system uses an ultra-high frequency antenna to detect and receive ultra-high frequency (UHF) signals generated by the partial discharge of the transformer to realize on-line monitoring of the partial discharge of the transformer. This system can use lE061850 protocol to output signals, and can be directly connected to the integrated online detection platform of the substation.

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:

Smart transformer comprehensive monitoring

Free consultation telephone:

0519-85851518

Message

Related Products

Product Details

1. Based on UHF full frequency band dynamic sweep frequency partial discharge detection technology; 2. Provide built-in or plug-in UHF sensor, working frequency bandwidth, high sensitivity, UHF sensor signal output terminal and ground terminal are equipotential, and work with transformer The circuit does not have any electrical connection, which is safer and more reliable for both the test device and the operator, and can be overhauled electronically; 3. Four-channel high-speed synchronous sampling; 4. Composite noise removal technology and automatic threshold wavelet noise removal principle; 5. Neural network expert system based on discharge map library; 6. DL/T860 (lE061850) standard protocol can be adopted;

System composition:

1. The ultra-high frequency (UHF) sensor system can be equipped with a manhole (hand hole) sensor or an oil valve sensor according to different needs. The manhole (hand hole) sensor is installed in the transformer production process, and the oil valve sensor Install at the transformer installation site.

2. On-site data processor The on-site data processing unit is connected to the UHF sensor through a high-performance coaxial cable, and through anti-interference technologies such as hardware filter circuit, mixing amplification, high-speed sampling and wavelet threshold filtering, extracts effective internal office Amplify the signal, and report the extracted partial discharge signal to the central processing unit after analysis and processing.

3. Background processing system The background processing system summarizes the signals of the field data processing unit, builds a fault mode database, uses fingerprint recognition, dual neural network engines, and diagnoses the type of partial discharge faults in the transformer

Related Products

Maintenance-free intelligent transformer breather

The maintenance-free transformer breather is an air dehumidification and purification device used for oil-immersed transformers, instrument transformers, on-load tap changers, or other electrical equipment filled with insulating liquid. The maintenance-free transformer breather is installed at the air inlet of the instrument transformer's oil storage tank. When the transformer or instrument transformer operates, the oil volume changes due to temperature variations, causing the gas inside the oil storage tank to breathe through the desiccant. Air passes through the filter at the bottom of the desiccant and the glass jar filled with silica gel into the transformer, ensuring that the inhaled air is dry (moisture is adsorbed by the desiccant) and clean (dust and impurities are blocked by the filter), thereby maintaining the cleanliness and insulation strength of the transformer oil.

JC-OM700-EE Wireless Expansion Joint Sensor

The JC-OM700-EE wireless expansion joint sensor achieves online monitoring of expansion joint compensation by modifying the existing mechanical vernier caliper of GIS/GIL expansion joints or adding a digital expansion joint displacement sensor. The wireless expansion joint sensor uses a high-speed ARM chip as the main controller and a high-precision displacement sensor to sample and calculate the displacement data of the measured object in real time. It can upload data to the host computer via wireless LoRa and wired RS485.

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