
I. System overview
Transformer is an important power equipment, its safe and stable operation will directly affect the normal production and life. At present, the power system from the previous manual inspection outage maintenance to online monitoring state maintenance development. The transformer comprehensive monitoring system includes transformer inlet and outlet joint temperature and oil temperature online monitoring, iron core grounding current online monitoring, cable grounding current online monitoring, load side voltage and current monitoring, light and heavy gas monitoring, video monitoring. It provides data support for the safe and stable operation of transformers, and provides favorable guarantee for the normal production of enterprises.
2. System topology
The system collects transformer inlet and outlet line temperature, operating oil temperature, iron core grounding current, cable sheath grounding current and other data by monitoring the host, and uploads the collected data to the cloud platform through GPRS. The collected data can be viewed in real time via a computer or mobile phone.
Three, technical parameters
Temperature sensor
Working environment: -25~125℃
Temperature range: -20 ~ +120℃
Measurement accuracy: ±0.5℃
Iron core grounded current transmitter
Range 1 ma - 10 a
Resolution of 1 ma
Accuracy ± (5%+1 word)
Protection class IP66
Cable sheath grounding current transmitter
Range 1MA-100A (customizable)
Resolution of 1 ma
Accuracy ± (5%+1 word)
Protection class IP66
Iv. Installation scheme
1. Six wireless temperature sensors are installed at the inlet and outlet of the transformer, and the oil temperature measurement sensor is installed in the oil temperature measurement hole. As shown below:
2, in the transformer core, clip grounding line is equipped with iron core, clip grounding current transmitter
3. Install 3 cable cover grounding current transmitters in the cable grounding box
4. Install video monitoring system
5. Equipment list
Serial number | Name | Quantity | Unit | Price (yuan) | Remarks |
1 | Industrial computer | 1 | Taiwan | Selection | |
2 | Monitoring host | 1 | Taiwan | ||
3 | Wireless temperature sensor | 6 | Only | ||
4 | Wireless oil temperature sensor | 1 | Only | ||
5 | Grounded current transmitter with iron core and clamp | 2 | Only | ||
6 | Cable sheath grounding current transmitter | 1 | Only | ||
7 | Load voltage monitoring (lack of phase monitoring) | 3 | Only | ||
8 | Load current monitoring (three-phase unbalance monitoring) | 3 | Only | ||
9 | Network pan-tilt camera | 1 | Only |
Contact: HD TigerService telephone: 0312-3136236 13932238372
http://www.bdzydq.com
Email address: bdzydq@126.com
Baoding Excellence Electric Co. LTD
In April 2021