Why do we need to recycle SF6?1. SF6 is very expensive;2. SF6 is the main greenhouse gas with high global warming potential listed in the Kyoto Protocol, and its global warming potential is 22800 times that of CO 2;3. When SF6 gas contains moisture, it will cause the following hazards…

What is sulfur hexafluoride (SF6)?Sulfur hexafluoride (SF6) is a synthetic fluoride compound with extremely stable molecular structure. It is colorless, tasteless, non-toxic, non corrosive, nonflammable and non explosive gas under normal temperature and pressure. It is a liquid at low temperature and pressure, and becomes a white solid after freezing.What…

Oil immersed transformer is a common transformer. Like all transformers, they will be replaced in 7-15 years. Let's learn how to judge whether the transformer is damaged?1. DGA oil testThe dissolved gas oil test or DGA test is a test that shows gases dissolved in transformer oil. Determine whether the…

Zinc oxide arrester tester is an instrument to test the performance of zinc oxide lightning arrester. It can detect power failure or electrification status, and timely find out whether zinc oxide arrester is aged or affected with damp. It has been widely used in many fields because of its simple…

The load switch is a control appliance with a simple arc extinguishing device, which can open and close the circuit with load. It can open and close a certain load current and overload current, but it cannot disconnect the short-circuit current. It must be used in series with the high-voltage…

The transformer comprehensive test bench complies with relevant national standards. The test bench is mainly used to test the no-load and load characteristics of power transformers and distribution transformers, as well as double frequency induction and power frequency withstand voltage tests of the tested transformers. The measuring part of the…

Transformer DC resistance tester is divided into 1A, 3A, 5A, 10A, 20A, 40A, 50A, 100A and other specifications. The instrument power supply is divided into external power supply AC220V, internal power supply (battery power supply), AC and DC power supply. At present, DC resistance testers above 10A on the market…

The main structure of oil immersed transformer is composed of body, oil tank, cooling device, protection device and outgoing device. The device body comprises an iron core, a winding (winding), an insulation, a lead wire and a tap changer; The oil tank includes the oil tank body and its accessories…

The transformer transformation ratio tester mainly tests the turns ratio or voltage ratio. It can overcome the shortcomings of the traditional transformation ratio bridge test. For this kind of instrument, its working principle and advantages are shown in the following.Working principle of transformer transformation ratio tester:The working principle of the…

When the wires and cables are energized, the metal core will heat up. With the increase of the energization time, the surface temperature of the wires and cables will get higher and higher. If it is not handled in time, the consequences can be imagined. The sheath of our commonly…