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Scientific and technological innovation and new life

Specializing in the production of various El transformers, voltage rise and fall transformers, ring transformers, SG three-phase and DG single-phase dry-type transformers, regulated power supplies, special transformers

Guangzhou Yongxiang (Yongheng )Electrical Appliance Factory

Chinese

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Industry Information

03-27 

Q&A about quality control transformer

What should be paid attention to when using quality control transformer? When using the control transformer, two points should be paid attention to: one is the power of the transformer, and the other is correct wiring. The total power of the load connected to the secondary side (secondary) shall not exceed the power of the control transformer, and short circuit is not allowed.

03-21 

A few small questions about the control transformer

Today, I will answer a few questions about the control transformer. What is a Control Transformer? In the low-voltage power distribution system, the control transformer gets its name because it is mostly used in the control system. It is actually a step-down transformer with multiple output voltages, and can also be used as a power supply for low-voltage lighting, signal lights, and indicator lights.

03-13 

Some usage knowledge of Power control cabinet manufacturers

Power control cabinet manufacturers tell you why the fire pump should be equipped with a dual power control cabinet? In the automatic control system of fire-fighting electrical equipment, the fire pump automatic inspection control cabinet and dual-power control cabinet are indispensable equipment for the automatic control system of fire-fighting electrical equipment. The fire pump is to be equipped with a dual power supply control cabinet.

03-06 

Power control cabinet manufacturers tell you how the dual power control cabinet works

Power control cabinet manufacturers will introduce to you: Common fire control cabinets are generally powered by a single power supply, either from the mains or a generator, usually the single power is powered by the mains. If the mains power supply fails, the fire control cabinet will not work normally.

03-01 

Power control cabinet manufacturers introduce purchasing skills for you

Power control cabinet manufacturers will introduce to you: how to choose a professional dual power supply control cabinet during the procurement process? 1) It must have the function of manual and automatic switching, and be able to send the feedback signal to the control center; 2) It must have overvoltage, undervoltage, phase loss, overcurrent, overload and other protection and sound and light alarm functions; 3) It must have self-injection, mutual backup functions, and isolated input power;

03-14 

Influence of China's Entry into WTO on China's Electronic Transformer Industry

03-14 

Eleventh Five-Year Plan for Electronic Transformer Industry

03-14 

my country's first new 220kV three-phase railway balanced traction transformer was successfully developed

China Economic Net Baoding On January 17, Tianwei Baobian Electric Co., Ltd. (hereinafter referred to as "Tianwei Baobian") independently developed the PQYS-S-63000kVA/220kV three-phase railway balanced traction transformer with completely independent intellectual property rights. Passed the assessment of all test items including the sudden short-circuit test of the National Transformer Testing Center, and the test results fully met the technical specifications for the electrification design of high-speed railways and the requirements of scientific research and trial production, marking the development of my country's first new 220kV three-phase railway balanced traction transformer success.

03-14 

Analysis of the advantages and disadvantages of autotransformers

Analysis of the advantages and disadvantages of autotransformers, compared with ordinary double-winding transformers, autotransformers have the following advantages: 1) Less consumption of materials and low cost. Because of the amount of silicon steel sheets and copper wires used in the transformer.

03-14 

alternating current vs direct current

Compared with the HVDC transmission mode, the HVDC transmission mode has obvious advantages. Historically, it was only due to technical reasons that AC transmission replaced DC transmission. The main advantages and disadvantages of alternating current and direct current are compared first, so as to explain their respective value in application.

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