Overview of Oil Pressure Tester - Basic Principles

Overview of insulation oil withstand voltage tester

The insulation oil withstand voltage tester produced by GDZX is widely used in high-voltage electrical and gas equipment such as transformers, oil circuit breakers, oil filled cables, electrical and mechanical equipment, containers, and oil sleeves. During operation, the performance of insulation oil will gradually deteriorate due to the effects of oxygen, high temperature, high humidity, sunlight, strong electric field, and impurities, making it unable to fully exert its insulation effect. Therefore, it is necessary to regularly conduct relevant tests on the insulation oil to determine whether its performance has deteriorated. The quality of insulating oil is closely related to the breakdown voltage.

This product is designed in accordance with the requirements of the International Electrotechnical Commission standard IEC156 "Dielectric Strength Test Method for Insulating Oils" and national standard 68507-6, fully considering the needs of domestic and foreign users, and based on the design of the Type III Microelectric and Brain Fully Automatic Dielectric Strength Tester for Insulating Oils.

Basic principle of insulation oil withstand voltage tester

The insulation oil withstand voltage tester of this machine adopts advanced technologies such as central processing unit and large-scale integrated circuit to form an automated testing equipment. The operation process is fully automated and can print oil test data through a micro printer configured on the panel. Compared with ordinary instruments and similar instruments, this equipment has good test stability, high accuracy, and good operability. There are multiple test operation modes for this equipment during oil test operation, and its main characteristics are:

Fully automatic testing method: Conduct 6 consecutive tests, automatically calculate the average value, and print out the data and average of the 6 tests through a panel printer.

Single automatic test method: Automatically complete one test and print out the single test data.

This machine uses an AC reversible motor to drive the voltage regulator at a constant speed of 3 kV/s to boost the voltage through a step-up transformer. When the oil sample is broken down, the protection system automatically cuts off the step-up power supply circuit, and at the same time, the protection circuit provides an interrupt signal to the system. After the system responds, it executes the oil breakdown process. The main internal operations include:

① The four digit digital tube flashes continuously for 8 times, indicating that the tested oil has broken through:

② Record test data;

③ Program controlled automatic execution of zero return operation. After returning to zero, identify whether to proceed to the next test operation cycle or automatically exit the test state based on the number of tests.

GDZX is a manufacturer of power testing equipment, producing a wide range of products with complete models and providing professional technical support. The phone number is 4000-828-027.