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Between short circuit and open circuit, these two transformers have different taboos
Mar 13 , 2022
Everyone knows that voltage transformers cannot be short-circuited, and current transformers cannot be open-circuited. Once the voltage transformers are short-circuited or the current transformers are open-circuited, they will destroy the voltage transformers or cause risks. In terms of structural design, we all know that both voltage transformers and current transformers are all transformers, but...
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Analysis of Rogowski coils Start to understand step by step from three aspects
Mar 13 , 2022
What is a Rogowski coil? The Rogowski coil is a flexible clip-on hybrid inductor coil that can be easily coiled around a current conductor for measurement, capable of measuring large currents of several thousand amperes without expanding the size of the voltage transformer. Rogowski coils are electronic voltage transformers used to measure alternating currents such as fast transients, single-pulse...
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Transformer internal structure transformation ratio conversion method
Mar 13 , 2022
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 according to the basic principle of the magnetic effect of current. It is mainly composed of a closed iron core and windings. Its primary side winding has a very small number of turns, which are connected in series in the route...
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What are the wiring principles of current transformers that are widely used
Mar 13 , 2022
Electrical debugging is a key content in the work of power installation engineering projects. In the electrical debugging work, the secondary circuit inspection is also a key adjustment content. It is related to the precise measurement, maintenance, communication and other functions of the power supply system. A prerequisite that cannot be fully utilized. In the secondary circuit, whether the wiri...
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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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