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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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Is there any need for a current transformer?
Aug 12 , 2021
The safe operation and management of transformers is the key to everyone’s daily work. Based on the experience exchanges on the analysis of abnormal operation conditions and common problems of transformers, it will be helpful to immediately and accurately distinguish the causes and characteristics of common faults, and take immediate measures to ensure The safe operation of machinery and equipment...
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What is the difference between current transformer and voltage transformer?
Aug 12 , 2021
Mutual-inductance meters and high-voltage meters of three-phase meters are connected to current transformers or voltage transformers as much as possible. This chapter explains in detail what are voltage transformers and current transformers and the differences between them. Transformer 1. Voltage transformer There are similarities between voltage transformers and transformers. The characteristics ...
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Inductor selection analysis, let's understand together
Feb 27 , 2021
You should be clear about the scope of inductance in the power circuit. Since the inductance is mostly not stable during the entire working period of the components, it is particularly important to grasp the scope of the effective value. For inductors used in power switching applications, the overall goal of allowable harmonic distortion current and transient response will determine the inductance...
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Be aware of these tips when using inductors
Feb 27 , 2021
The main uses of RF inductors are diverse, and can be used in various structural features to consider performance testing schemes for special applications. Matching, resonators and choke coils are the main common uses of inductors in RF power circuits. Matching includes removing the characteristic impedance mismatch and minimizing the reflective surface and loss of the middle route of power circui...
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Talk about why inductance can eliminate EMC
Feb 27 , 2021
Filtering power capacitors, common mode inductors, and magnetic beads are common shadows in the power supply circuit of EMC design schemes, and they are also the three major artifacts for solving interference signals. Regarding the effects of these three in the power circuit, I firmly believe that many technical engineers do not understand. The content of the article analyzes the basic principles ...
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