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Introduction of preventive item inspection before voltage transformer is put into use
Mar 13 , 2022
Preventive testing is an important link in the operation and maintenance of power equipment, and it is one of the effective solutions to ensure the safe operation of power equipment. In order to better ensure that various technical indicators of voltage transformers meet the standards, power engineering construction companies will carry out preventive tests on transformers before they are put into...
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Triggering conditions for protection mechanisms of protective transformers
Mar 13 , 2022
The intelligent motor protector integrates the functions of measurement, control, protection, network communication, etc., and can protect the three-phase asynchronous motor. The modular design of the fully intelligent motor protector, the main controller and the display operation module are separated, according to the actual situation whether to use the display operation module. The product is sm...
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The higher the Q value, the lower the loss when winding the coil
Aug 12 , 2021
Let’s first talk about the definition of inductor quality factor Q Coil The Q value is the basic main parameter to consider the inductance. It refers to the ratio of the inductance exhibited by the inductance to its equivalent circuit loss resistance when the inductance works under a certain frequency of AC voltage. The higher the Q value of the inductor, the smaller its loss and the higher the ef...
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What is the relationship between light gas action and current transformer
Aug 12 , 2021
The safe operation and management of transformers is the focus of everyone’s daily work. Based on the experience exchange of abnormal operation conditions and common problems analysis of transformers, it will be helpful to immediately and accurately determine the causes and characteristics of common faults, and take immediate measures to ensure The safe operation of machinery and equipment. The va...
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Transformer internal structure transformation ratio conversion method
Aug 12 , 2021
The current transformer is an instrument and equipment that converts a large current on the primary side into a small current on the secondary side for accurate measurement based on the basic principle of the magnetic effect of the current. It is mainly composed of a closed iron core and windings. Transformer The number of turns of the primary winding coil is very small, which is stringed in the r...
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Current transformers are widely used. What are the wiring principles?
Aug 12 , 2021
Electrical debugging is a key content in power installation engineering project work. In electrical debugging work, secondary loop inspection is also a key adjustment content. It is related to the precise measurement, maintenance, and communication of the power supply system. A prerequisite that cannot be fully utilized. In the secondary loop, whether the wiring of the transformer is appropriate i...
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Detailed explanation of on-site office capacity of current transformer calibrator
Aug 12 , 2021
What is the current transformer calibrator Transformer The current transformer calibrator is used for high-voltage electric energy measurement in power generation and substations. It uses detection technology and large-scale electronic design. It solves the problems of high intensity and complicated actual operation on the current transformer and voltage transformer calibration site. Principle of ...
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The magnitude of the transformer magnification is closely related to this power value
Aug 12 , 2021
The power of a three-phase meter is mainly determined by the current specification and model of the three-phase meter and the voltage required for on-site work. If it is a DC power meter, the power P=I current*U working voltage*3, let us give an example below. Transformer If the current specification and model of a three-phase meter is 40A and the working voltage on the spot is 380V, then the powe...
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The benefits of correct wiring of current transformers for short circuit inspection
Aug 12 , 2021
The wiring method of the current transformer is not very complicated, there are only four wiring forms. The four types of wiring will be listed below. Transformer 1. The first is the wiring method of a single current transformer. Under the condition of only single-phase current, it is suitable to measure one-phase current or three-phase load balance, and the three-phase status can be understood by...
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Analysis of the basic knowledge of these two current transformers and the difference between the two
Aug 12 , 2021
1. Bus-type current transformer and pillar-type current transformer Transformer I was asked a question by someone the day before, what is the difference between a bus-type current transformer and a pillar-type current transformer? At that time, there was some confusion, let alone the difference. I still don't have any idea what these two forms look like. After checking the materials, I found that ...
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