The principle of the isolation transformer and the introduction of the manufacturer

What is the role of the isolation transformer? Simply speaking, the two phases can be electrically isolated, so as to prevent accidents from electric shock. In fact, the isolation transformer is a kind of safety power supply, which is usually used for protection, lightning protection and filtering during machine maintenance. And the isolation transformer is a 1/1 transformer type, the primary single-phase is 220V, and the secondary is also single-phase 220V. Or the primary three-phase 380V, the same secondary is also three-phase 380V.

The main function of the isolation transformer: First, one line of the AC power supply voltage we use is connected to the ground, and then another line and the ground are formed with a potential difference of 220V. Electric shock will occur when people are in contact. At this time, after the isolation transformer is used, its secondary is not connected to the earth, and there is no potential difference between any two wires and the earth. When a person touches any line, there will be no accidental electric shock accident, so that a certain degree of work safety can be ensured. Secondly, the output end and input end of the isolation transformer are completely "open circuit" isolated, which can effectively ensure a relatively good filtering effect on the input end of the transformer (that is, the voltage supplied by the grid to the power supply). Electric equipment provides a pure power supply voltage.

Completely insulate the electrical on the primary side and the secondary side, and also isolate the circuit. In addition, the high-frequency loss of its iron core is used to prevent high-frequency clutter from entering the control loop. Using an isolation transformer to suspend the secondary to the ground can only be used in occasions with a small power supply range and short lines. At this time, the capacitance current of the system to ground is too small to cause personal injury. Another very important role is to protect personal safety! Isolate the role of dangerous voltage.

The working principle of the isolation transformer: In fact, its principle is basically the same as that of an ordinary transformer, and both use the principle of electromagnetic induction. The isolation transformer generally refers to a 1:1 transformer. Since the secondary will not be connected to the ground, there is no potential difference between any line of the secondary and the ground, so that it will be safer during use. It is often used to repair the power supply. Of course, the isolation transformer is not exactly a 1:1 transformer. The power supply of the control transformer and the tube equipment is also a form of isolation transformer, such as: tube amplifier, tube radio, oscilloscope, lathe control transformer, etc. Isolation transformer.

If it is to be able to repair the color TV in a safe environment, usually a 1:1 isolation transformer is used. It can be said that this kind of equipment will be used in many, many occasions, and it will also be commonly used in household appliances and air conditioners required in daily life. usage of.

to sum up:

1. The role of the isolation transformer: anti-interference, impedance transformation, stabilizing system voltage, preventing system grounding, reducing short-circuit current and some other functions.

2.The working principle of the isolation transformer: the same as the electromagnetic induction of the transformer, it mainly isolates the primary power circuit and the secondary circuit is floating to ensure the safety of electricity. Another purpose is to prevent interference.

Isolation transformer manufacturer

Zhejiang Chint Electric Co., Ltd. was established in August 1997 and is the core holding company of Chint Group. The company specializes in the research and development, production and sales of more than 100 series, more than 10,000 specifications of low-voltage electrical products such as power distribution appliances, control appliances, terminal appliances, power appliances, and power electronics, for construction, power, lifting, HVAC and Communications and other industries provide increasingly complete system solutions. Over the past 30 years since its establishment, Chint Electric has provided reliable products and services to more than 140 countries and regions. Isolation transformer manufacturer Chint's transformer product series have: NDK (BK) series control transformers, NDKG, NDKR, NDKS series control transformers, TDR series power transformers, HB series toroidal power transformers, BKC series control transformers, NSK series three-phase dry Type control transformer, SG series three-phase dry-type transformer, JBK1, JBK2, JBK3, JBK4 series machine tool control transformer, JBK5 series machine tool control transformer, JBK6 series machine tool control transformer, etc.