A Transformer Testing Equipment that Improves Transformer Maintenance Efficiency—Transformer Comprehensive Tester

Transformer preventive testing, a crucial component of power equipment operation and maintenance, has long been given priority by the state. Practical experience suggests that following inspection regulations enables the inspection to make full use of its role and safeguard the safe operation of power equipment. With the enhancement of insulation level and the continuous advancement of computer technology, the intelligence construction of power equipment is gradually being promoted. Preventive testing is also facing new changes. In the future, it will move towards scale, information and intelligence, and the equipment such as transformer and circuit breaker can be effectively monitored and diagnosed by testing laboratory. The use of information technology and automation technology will be used for preventive testing of power equipment, to enhance the safety performance of power equipment operation and realize scientific management of preventive testing. Therefore, the application of transformer testing equipment is particularly highlighted.

In order to meet the requirements of transformer factory inspection and acceptance test, the application of transformer comprehensive tester can test the main electrical properties of power transformer, which is characterized by color display, Chinese prompts for operation, and real-time monitoring of the whole test process, which is safe and reliable.

The Transformer Comprehensive Tester can accurately test the electrical characteristics, mechanical characteristics and thermal insulation characteristics of transformers. It has the advantages of high measurement resolution, high precision, easy operation and long service life, making it one of the most important tools to ensure the safe and reliable operation of the power system.

The emergence of the new multi-functional portable integrated transformer comprehensive teser has greatly simplified the detection and maintenance of transformers. The traditional mode requires 4-5 people and 8-12 hours, while now only 1-2 people and 1-2 hours can be completed, which saves a lot of time and human resources. The new generation of multi-functional portable integrated transformer test system has good power anti-interference ability, more functions, convenient portability, simpler operation, which can effectively improve the productivity of field labor and avoid the risk of meaningless extension of time caused by insufficient equipment and personnel. In a word, the multi-functional transformer comprehensive test meter makes the inspection and maintenance of transformer more convenient, safe, efficient and cost-saving, and is highly recognized by users.

The role of transformer comprehensive test meter:

The transformer comprehensive test meter is an instrument that can measure the direct current impedance and its characteristic parameters in the circuit of switch contacts, circuit breaker contacts, busbars, contacts, SF6 switches, various connections, fuses and railways. The working principle of the instrument is: adjust the preset test current through the adjustable silicon rectifier circuit, apply the current to the tested sample after filtering and rectifying, and directly measure the resistance value and display it on the digital voltmeter. Using the four-end test method, the test object and the circuit connected to the four ends can be determined by the test circuit and the corresponding selection switch. The transformer comprehensive test meter can accurately measure the resistance and characteristic parameters of the test object, and it is a very important test equipment.

Features of transformer comprehensive test meter:

Transformer test meter is a comprehensive set of multi-parameter testing meters with measurement, control, display, storage and printing functions. It has the outstanding advantages of small footprint, light weight, high accuracy, easy operation, one-time wiring and automatic completion of all tests. At the same time, it also has functions such as LCD backlight display, print report and automatic data storage, which make it a comprehensive and timely detector of various transformer products in the power industry, making its application more convenient. Therefore, the emergence of transformer comprehensive test meter has brought many advantages to the technological upgrading of power industry, which greatly saves cost and time, and improves product quality and safety.

A Transformer Comprehensive Tester is a specialist device used to test transformer parameters, and there are some details to be taken into consideration when using it. Firstly, when testing the voltage adjusting winding under no load, it is not allowed to switch the no-load branch switch before the discharge is completed, in order to avoid interference to the test result. Secondly, for the inductive test object on the transformer, it is not allowed to be disconnected from the test line before the completion of discharge (when the buzzer is ringing), so as to avoid accidental electric shock. Finally, if 220V external power supply is suddenly cut off, the instrument will enter the automatic discharge mode, in which the wires are not allowed to be removed. After 5 minutes, the transformer will be completely discharged and the wires can be safely removed.

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