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What kinds of tests should be carried out for transformers in operation?

What kinds of tests should be carried out for transformers in operation?

In order to ensure the normal operation of the transformer, the following tests shall be carried out frequently:;

2022-11-23

How to select transformer? How to determine the reasonable capacity of transformer?

How to select transformer? How to determine the reasonable capacity of transformer?

First, investigate the power supply voltage of the power consumption place, the actual power load of the user and the local conditions, and then select one by one with reference to the technical data marked on the transformer nameplate. Generally, the transformer capacity, voltage, current and environmental conditions should be considered comprehensively. The capacity selection should determine the required load according to the capacity, nature and service time of the user's electrical equipment, so as to select the transformer capacity.

2022-11-23

What is the nameplate of the transformer? What are the main technical data on the nameplate?

What is the nameplate of the transformer? What are the main technical data on the nameplate?

The nameplate of the transformer indicates the performance, technical specifications and application occasions of the transformer, which is used to meet the user's selection. The main technical data for selection are:

2022-11-23

What are the losses of transformers in operation? How to reduce losses?

What are the losses of transformers in operation? How to reduce losses?

(1) It is caused by the iron core. When the coil is energized, the magnetic lines of force are alternating, causing eddy current and hysteresis loss in the iron core. This loss is collectively called iron loss.

2022-11-23

What is the voltage change rate of a transformer?

What is the voltage change rate of a transformer?

The voltage change rate of voltage regulator is one of the main performance indexes of transformer. When the transformer supplies power to the load, the voltage at the load end of the transformer will inevitably decrease. Compare the decreased voltage value with the rated voltage value, and take the percentage as the voltage change rate, which can be expressed by the formula; Voltage change rate=[(secondary rated voltage load terminal voltage)/secondary rated voltage] × 100%。 Generally, when the power transformer is connected to the rated load, the voltage change rate is 4-6%.

2022-11-23

How is the voltage regulator regulated?

How is the voltage regulator regulated?

The structure of the voltage regulator is the same as that of the autotransformer, except that the iron core is wound on the ring iron core as a ring coil. A sliding brush contact is used for the tap of the secondary coil to make the contact slip along the loop of the coil surface to achieve smooth voltage regulation.

2022-11-23

What are the components of the transformer?

What are the components of the transformer?

Transformer components are mainly composed of iron core and coil, as well as oil tank, conservator, insulating sleeve and tapping head.

2022-10-17

What are the types of transformer designs?

What are the types of transformer designs?

There are single-phase and three-phase transformers according to the number of phases. It is divided into power transformer, special power transformer, voltage regulating transformer, measuring transformer (voltage transformer, current transformer) and small power transformer (for small power equipment) according to the purpose. It is divided into core type and shell type according to the structure. The coil has two windings and multiple windings, and the autotransformer is divided into oil immersed type and air cooled type according to the cooling mode.

2022-10-17

How does a transformer change voltage?

How does a transformer change voltage?

The transformer is made of electromagnetic induction. It consists of an iron core laminated with silicon steel sheets (or silicon steel sheets) and two groups of coils wound on the iron core. The iron core and coils are insulated from each other without any electrical connection

2022-10-17

What is a transformer?

What is a transformer?

In the AC circuit, the equipment that increases or decreases the voltage is called the transformer. The transformer can convert any value of voltage into the voltage value we need with the same frequency to meet the requirements of power transmission, distribution and use. For example, the power generated by the power plant has a low voltage level, so the voltage must be increased before it can be transmitted to a distant power consumption area, and the power consumption area must be converted into a suitable voltage level through voltage reduction to supply power equipment and daily power equipment.

2022-10-17

Case of cooperation with Luohe Huili

Case of cooperation with Luohe Huili

The Company adheres to the service tenet of "quality upmost and user first", introduces domestic and overseas superb technologies, accelerates the development speed of new products,

2022-10-17

Case of cooperation with State Grid Huachen Group

Case of cooperation with State Grid Huachen Group

The Company adheres to the service tenet of "quality upmost and user first", introduces domestic and overseas superb technologies, accelerates the development speed of new products, keeps improving the product assembly level, performs operation elaborately and provides services wholeheartedly. The company strives to meet national standards in terms of quality and management and keeps pace with the high level in the same industry.

2022-10-17

Case of engineering cooperation with Pinggao Group

Case of engineering cooperation with Pinggao Group

In the meanwhile, the Company also inputs more in quality control, actively takes fine detection means and makes efforts to ensure that all the products meet the quality requirements. We make the users reassured by implementing the quality policy of "adopting superb technologies, guaranteeing the product quality, producing quality products and meeting customers' demands".

2022-10-17

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