Transformer temperature, oil level, and pressure monitoring device

To ensure the safe and stable operation of oil immersed transformers, data such as oil temperature, oil level, current, and voltage are often monitored. A transformer status online monitoring system is needed, which can monitor various key parameters of the equipment operation status at any time, timely understand the equipment status and quickly alarm in case of abnormal faults, manage and control in a timely manner, and effectively improve the reliability of transformer operation.
Based on the requirements and relevant technical standards for online monitoring of intelligent distribution transformers and combined substations, we have independently developed a three in one monitoring device for oil temperature, oil level, and pressure. This device has the advantages of high safety, low cost, good real-time performance, convenient installation, and easy maintenance. It can be used for oil immersed transformers and combined substations, providing a good solution for online monitoring of oil temperature, oil level, and pressure of power equipment. The monitoring device can achieve precise monitoring of transformer oil temperature oil level pressure and upload it to the intelligent fusion terminal in the substation area through RS-485.

Installation method of oil temperature oil level oil pressure three in one monitoring device The monitoring device is installed in the traditional oil level gauge mounting hole, near the side edge of the transformer, as shown in Figure 3-3. Installation tool: 68-72 crescent wrench. (1)Monitoring device; (2)Communication cable; (3) Fusion terminal+power adapter (placed in the distribution cabinet); (4)transformer

(1)Pressure relief valve cover   (2)Force release  cover   (3)upper   (4)Nameplate   (5)Aviation socket   (6)Oil level observation window   (7)Casing (8)M52x2   (9)Oil float   (10)Temperature sensor

	Wire number	color	wiring instructions
	Oil-485A	red	Connected to Fusion Terminal: 9
	Oil-485B	blue	Connected to fusion terminals: 10
	+24V	Brown	Connect power adapter:+
	-24V	black	Connect power adapter:-
	Note: 1. The default standard configuration for the cable is a 5-meter-long 4-core shielded cable with a stainless steel bendable corrugated tube. 2. Other requirements can be customized.

Standard:

1. Production standard: Enterprise standard Q/IB 0001-2024
2. Certification Standard: ISO9001:2015 International Quality Management System Certification
ISO14001:2015 Environmental Management System Certification
ISO45001:2018 Occupational Health and Safety Management System Certification
3. Experimental standard: IEC61000-4:2005 international standard
GB/T17626-2008 “Electromagnetic Compatibility Testing and Measurement Techniques” standard
According to the standard: DL/T 1498.1-2016; Q/GDW 1535-2015； DL/T 1432.1-2015