Transformer online monitoring equipment

Date: September 16, 2025 08:05:10

  1. Transformer online monitoring equipment is a key infrastructure to ensure the stable operation of the power system, can capture all kinds of parameter changes in the process of equipment operation in real time, to provide accurate fault early warning basis for operation and maintenance personnel, effectively reduce the probability of sudden transformer failure, and extend the service life of the equipment.
  2. Transformer oil gas (including micro water) online monitoring deviceIt is one of the core monitoring devices, which detects the composition and content of hydrogen, carbon monoxide, methane, ethane and other gases dissolved in the transformer oil through specific technical means, and at the same time monitors the micro-water content in the oil. When overheating, partial discharge and other faults occur inside the transformer, the gas composition and content in the oil will change abnormally, and the device can capture these changes in time and provide data support for fault judgment.
  3. Transformer partial discharge online monitoring deviceFocuses on capturing local discharge signals inside the transformer, which is an early and typical sign of transformer insulation deterioration. The device uses high-precision sensors to collect the electrical signals and ultrasonic signals generated by partial discharges. After signal processing and analysis, it accurately determines the location, intensity and type of partial discharges, helping operation and maintenance personnel to take intervention measures at the budding stage of faults.
  4. Transformer bushing dielectric loss online monitoring deviceIt mainly monitors the insulation performance of the casing on the high-voltage side, and evaluates the insulation status of the casing through real-time collection of key parameters such as leakage current, dielectric loss factor and relative capacitance of the casing. When casing insulation aging, moisture and other problems, these parameters will deviate from the normal range, the device can issue a timely warning to avoid casing failure caused by a larger power accident.
  5. Transformer core grounding current online monitoring deviceDedicated to monitoring the base wave current and full current values of core grounding current, core multi-point grounding is one of the common transformer faults, which will lead to localized overheating of the core and accelerate insulation aging. The device continuously monitors the change of grounding current to determine whether there is a multi-point grounding fault in the core, providing accurate guidelines for core maintenance.
  6. Transformer vibration online monitoring deviceWith the help of vibration accelerometers and other sensors, multi-point vibration amplitude signals of the transformer case, windings and other parts are collected. Transformer internal core loosening, winding deformation, parts off and other mechanical failures will lead to changes in vibration characteristics, through the vibration signal spectrum analysis and feature extraction, can identify these potential mechanical failures, to protect the structural stability of the transformer.
  7. Online monitoring device for on-load regulator switchesThe device is specially designed to monitor the operating status of the on-load regulator switch, and collects parameters such as operating current, operating time, vibration signals and the number of actions in real time. On-load voltage regulator switch is an important part of transformer voltage regulation, and its operation status directly affects the voltage regulation performance and overall reliability of the transformer. This device can detect abnormal switch action, poor contact and other problems in a timely manner to ensure normal operation of the switch.
  8. Transformer Intelligent Monitoring TerminalIt is a highly integrated monitoring device with modularized design, which can synchronously collect a variety of key monitoring indicators such as oil temperature, winding vibration, partial discharge, gas in oil, and so on. The terminal has a built-in intelligent diagnostic engine, which can comprehensively analyze the collected multi-dimensional data, establish the equipment health index model, predict the remaining service life of the equipment, and provide scientific operation and maintenance decision-making suggestions for the operation and maintenance personnel.
  9. Transformer winding temperature online monitoring deviceIt is an important part of the temperature monitoring system. The winding temperature is a key indicator reflecting the load capacity and insulation status of the transformer. The device measures the hot spot temperature of the winding directly or indirectly through special temperature sensing technology to avoid accelerated aging of the insulation material due to overheating of the winding and to ensure the safe operation of the transformer within a reasonable temperature range. Transformer oil temperature monitoring device based on fluorescent sensing technology utilizes the sensitivity of fluorescent substances to temperature changes to realize the monitoring function. When the transformer oil temperature changes, the fluorescent material life characteristics will change accordingly, the device through the detection of these fluorescent characteristics change, accurate access to oil temperature status information, and has a high sensitivity and stability. Transformer wireless temperature monitoring device adopts wireless communication technology, free from the traditional wired monitoring method of wiring restrictions, flexible and convenient installation. The sensor nodes of the device can be installed in the key heat generating parts of the transformer, such as windings, cores, bushings, etc. After real-time collection of temperature data, the data will be sent to the backstage monitoring system through the wireless transmission module, which is suitable for the transformation of the old transformer or the monitoring scenarios where wiring is difficult. Transformer infrared temperature online monitoring device utilizes the principle of infrared temperature measurement, capturing the infrared radiation signals on the surface of the transformer and key components through infrared sensors and converting them into temperature data. The device can realize non-contact temperature monitoring, avoiding the safety risks that may be brought by direct contact between the sensor and the equipment, and at the same time, it can monitor the overall temperature distribution of the transformer, and discover the local overheating area in time.
  10. Transformer oil flow rate online monitoring deviceUsed to monitor the oil flow rate in the transformer cooling system, the oil flow rate directly affects the cooling effect of the transformer. When the oil flow speed is too slow, the transformer heat dissipation is not timely, easy to cause the temperature to rise; oil flow speed abnormally fast may mean that the cooling system is faulty. The device through real-time monitoring of the oil flow rate, to ensure the normal operation of the cooling system, to maintain the temperature stability of the transformer.
  11. Transformer insulation resistance online monitoring deviceThe insulation performance of the transformer is assessed by measuring the insulation resistance value between the transformer windings and the core, and between the windings and the windings on a regular basis or in real time. Insulation resistance value is an important index reflecting the insulation ability of insulating materials, when the insulating materials are aging, damp or damaged, the insulation resistance value will drop significantly, the device can detect these problems in time and provide a basis for insulation maintenance.
  12. Transformer noise online monitoring deviceThe noise signal generated during the operation of the transformer is collected by the sound sensor. The noise has stable spectral characteristics during normal operation of the transformer, and the intensity and frequency distribution of the noise will change when there is an internal mechanical failure (e.g., core loosening, wear and tear of parts) or an electrical failure (e.g., partial discharge). The device analyzes the change of noise signal to assist in determining whether the transformer is faulty.
  13. Transformer tank pressure online monitoring deviceIt is used to monitor the pressure changes inside the transformer tank, and the tank pressure is kept within a stable range during normal operation. When a short circuit, arc discharge and other faults occur inside the transformer, a large amount of gas will be generated, resulting in a sharp rise in tank pressure, which may cause tank rupture in severe cases. The device can monitor the pressure change in real time, and alarm in time when the pressure is abnormal to prevent the accident from expanding.
  14. Transformer cooler condition online monitoring deviceIt monitors the operation status of the coolers (such as fans and oil pumps) in the transformer cooling system, and collects parameters such as working current, rotational speed, and inlet and outlet oil temperatures of the coolers in real time. Failure of the cooler will lead to a decline in the heat dissipation capacity of the transformer, triggering an increase in temperature. The device can promptly detect abnormal start-stop and insufficient rotation speed of the cooler to ensure the efficient operation of the cooling system.
  15. Multi-parameter cooperative monitoring device for transformer based on wireless sensor networkThe device integrates temperature, vibration, gas in oil, partial discharge and other monitoring functions, and builds a monitoring network through multiple wireless sensor nodes to realize all-round and three-dimensional monitoring of transformer operation status. Each sensor node can realize data interaction and collaborative analysis to improve the accuracy and timeliness of fault judgment.
  16. Transformer bushing infrared thermal imaging online monitoring deviceCombined with infrared thermal imaging technology, it can generate real-time thermal imaging map of the transformer bushing, visualizing the temperature distribution of the bushing surface. Compared with the traditional single-point infrared temperature measurement, thermal imaging technology can more comprehensively find the local overheating area caused by casing insulation defects, especially suitable for the assessment of the overall insulation state of the casing and fault location.
  17. Online monitoring device for particle size in transformer oilIt is used to monitor the number and size distribution of solid particles in transformer oil. Exceeding the standard of particle degree in the oil will aggravate the wear and aging of insulating materials, affecting the insulating performance and service life of the transformer. The device through high-precision particle detection technology, real-time monitoring of oil particle size changes, for the transformer oil filtration and purification treatment to provide data support, to protect the cleanliness of oil.