Tan Delta Tester Manufacturer- HENGFENG HV TEST

Jinan Hengfeng electric power equipment Co., Ltd. is a well-known high-end manufacturer of electrical testing equipment ,with exclusive agents and distributors in nearly 20 countries around the world. 


We professionally engaged in R&D, manufacture and marketing of high voltage testing products. With high-quality products and good after-sales service, we have enjoyed high reputation in the domestic and foreign markets.

The main products are:

Tangent delta tester

Ground resistance tester

DC hipot tester

Insulation resistance tester

Surge arrester leakage current analyzer

Hengfeng also actively involved in the software and firmware development of China's electric power industry. Now we established close technical cooperation relations with the State Grid, Shandong HV Research Institute, Wuhan HV Research Institute, Tsing Hua University, and some others scientific research institutions .

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How to use insulation resistance tester?

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  Insulation resistance is generally measured with an insulation resistance tester. Insulation resistance tester is mainly used to check the insulation resistance of electrical equipment, household appliances or electrical lines to ground and between phases. It is suitable for measuring the resistance value of various insulating materials and the insulation resistance of transformers, motors, cables and electrical equipment. It is an important tool for electric power , post and telecommunications, communications, mechanical and electrical installation and maintenance, and industrial enterprise sectors that use electricity as industrial power or energy are commonly used and indispensable instruments. Principle of insulation resistance tester: The insulation resistance tester mainly excites the device or network under test with a voltage, then measures the current generated by the excitation, and uses Ohm's law to measure the resistance. For example, these electrical testers apply mu...
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Understanding the Difference: Tan Delta Test vs. Megger Test

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  When it comes to assessing the health and integrity of electrical insulation systems, two common methods employed are   Tan Delta Test   and Megger Test. Each serves a distinct purpose in detecting potential faults or weaknesses within electrical systems, offering valuable insights to engineers and technicians. In this comprehensive guide, we delve into the nuances of these tests, elucidating their differences, applications, and benefits. Tan Delta Test: Unveiling the Power of Dielectric Dissipation The  Tan Delta Tester  also known as the Dissipation Factor Test, is a sophisticated diagnostic technique used to evaluate the condition of insulation in high-voltage apparatus. It operates on the principle of measuring the dielectric dissipation factor or tan delta (δ), which signifies the energy loss within the insulation material. By subjecting the insulation to a high-frequency voltage, this test can discern subtle defects such as moisture ingress, contaminatio...
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What is an insulation resistance tester?

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  Electrical systems play a crucial role in our modern lives, powering everything from homes to industries. To ensure the safety and reliability of these systems, it is essential to regularly inspect and test the insulation resistance of electrical components. This is where an   Insulation Resistance Tester   becomes indispensable. What is an Insulation Resistance Tester? An Insulation Resistance Tester (IRT) is a specialized instrument designed to measure the resistance offered by the insulation material between the conductive parts of electrical equipment. In simpler terms, it evaluates the effectiveness of insulation in preventing current leakage in electrical systems. How Does It Work? The IRT applies a high voltage to the insulation under test and measures the resulting current flow. The principle behind this lies in Ohm's Law (V=IR), where voltage (V) is applied, and the current (I) and resistance (R) are measured. By knowing the applied voltage and the current flow...
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