【overview】Wuhan Zhongke Xinyi Power Technology Co., Ltd. (abbreviated as: Zhongke Xinyi) is a new type of power technology company established by relying on the restructuring of Wuhan High Voltage Research Institute and China Electric Power Research Institute. A high-tech enterprise integrating R & D, production, sales, consulting and power technology services of meters, battery DC system testing, power online monitoring system. The company has a full set of power testing equipment, power testing equipment for power engineering debugging company upgrade qualification. ZEC series relay protection tester, relay protection calibrator, zinc oxide arrester characteristic tester, high voltage switch tester, transformer tester, battery tester, etc.

Wuhan Zhongke Xinyi Power Technology Co., Ltd. (abbreviated as: Zhongke Xinyi) is a new type of power technology company established by relying on the restructuring of Wuhan High Voltage Research Institute and China Electric Power Research Institute. A high-tech enterprise integrating R & D, production, sales, consulting and power technology services of meters, battery DC system testing, power online monitoring system. The company has a full set of power testing equipment, power testing equipment for power engineering debugging company upgrade qualification. ZEC series relay protection tester, relay protection calibrator, zinc oxide arrester characteristic tester, high voltage switch tester, transformer tester, battery tester, etc.

Planning and design, should pay attention to the following matters:

1 The influence of severe weather such as typhoon, rainstorm and icing should be fully considered in planning and design, and targeted preventive measures should be taken.

During operation, great attention should be paid to the prevention of severe weather. The specific requirements are as follows:

1. It is necessary to summarize the law of severe weather changes, establish an early warning mechanism, prepare targeted emergency plans, and improve emergency equipment.

2. When receiving the typhoon warning, the floating objects in and around the substation shall be removed, the temporary safety fence shall be removed, the temporary buildings shall be strengthened, the doors and windows of buildings, terminal boxes and mechanism boxes shall be checked and closed, and the traps, equipment drainage lines, wire clamps and additional rain covers shall be fixed in good condition.

3, when receiving rainstorm warning, should unblock the drainage system, check the flood control facilities are complete and in good condition, building doors and windows, terminal box, mechanism box door closed, equipment rain cover fixed in good condition. Timely to upstream reservoirs, rivers and other management departments to understand the flood information.

4, when receiving the cold wave warning, should check the ice melting device, ice on-line monitoring device is in good condition, carry out ice melting drill. When rain and snow are frozen, targeted deicing measures should be taken under the premise of ensuring safety. Especially for substations with single power supply, it is necessary to prevent the substation from being completely shut down due to serious icing of incoming lines.

5, when receiving high temperature warning, should check the heavy-duty transformer cooling facilities, indoor ventilation and cooling facilities in good condition, increase the frequency of infrared temperature measurement, closely monitor the temperature change, take preventive measures in advance.

6. Attention should be paid to the personal safety when carrying out inspection work under bad weather conditions. If conditions are met, robots can be used instead of manual inspection.

Safety is more important than Mount Tai, Wuhan Zhongke Xinyi Electric Power Technology Co., Ltd. has always put safety in the first place.

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The interface operation steps of the micro-water tester produced by Wuhan Zhongke Electric Power are introduced in detail.

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The interface operation steps of the micro-water tester produced by Wuhan Zhongke Electric Power are introduced in detail.

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Talk about the principle and function of variable frequency series resonant voltage withstand test equipment

Variable frequency series resonant withstand voltage test equipment is mainly used for AC withstand voltage test of cross-linked cable, hydraulic generator, main transformer, bus, GIS and so on. It is composed of variable frequency control power supply, excitation transformer, reactor, capacitor voltage divider and compensation capacitor. Because the voltage, waveform and frequency and the electric field state inside the insulation of the tested object are consistent with the actual operation, and the test voltage is higher than the actual operation voltage, therefore, the insulation strength is strict, direct and effective method.

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Overview of Operation Test of Electrical High Voltage Test Equipment

In addition to the long-term operation under rated voltage, the power generation, supply and consumption equipment in the power system must have the insulation strength under overvoltage. Overvoltage refers to the voltage rise that exceeds the normal operating voltage, which is the damage of electrical equipment or protective equipment. In all kinds of power system accidents, a large part is caused by the insulation damage of equipment caused by overvoltage. When the insulation is defective, if it is not found and eliminated in time, it will eventually lead to equipment damage and power failure.

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Characteristics of gas-filled test transformer

The inflatable test transformer is a brand-new test equipment, which adopts the characteristics of GIS combination cabinet, with small quality, light volume and beautiful appearance. Its technical indicators have reached the standard requirements, high insulation strength, compressive strength for the same pressure of nitrogen 2.5 times, 2.5 times the breakdown voltage of air. It is equal to the breakdown voltage of oil at 0.25MPa and twice the breakdown voltage of oil at 0.45MPa.