Principle Of Isolating Transformer - China

three-phase transformer

The principle of three-phase transformer and isolation transformer is the same as that of ordinary transformer.

All by electromagnetic induction.

Isolation transformer generally refers to 380V/380V, 400V/400V transformer.

Because the secondary is not connected.

There is no potential difference between any of the secondary lines and the ground.

Safe to use.

Often used for maintenance.

Isolation transformers are not all 1: 1 transformers.

The power source of the control transformer and tube equipment is also the isolation transformer.

Power sources such as electronic tube amplifiers, electronic tube radios and oscilloscopes and lathe control transformers are isolating transformers.

Such as for the safety maintenance of color TV commonly 1 than 1 isolation transformer.

Isolation transformer is used more, in the air conditioning is also used.

Although there are isolation circuits between primary and secondary windings of transformers in general, the capacitance between the two windings will still cause electrostatic interference between the two sides of the circuit in the case of higher frequency.

In order to avoid such interference, the primary and secondary windings of the isolating transformer are generally placed on different cores to reduce the capacitance between them.

The primary and secondary windings are concentric, but electrostatic shielding is added between the windings to achieve high anti-interference.

Electrostatic shielding is to set a piece of copper sheet or non-magnetic conductive paper between the primary and secondary windings, which is called the shielding layer.

Copper sheet or non-magnetic conductive paper is connected to the housing with wires.

Sometimes for better shielding effect, a shielding shell is also covered throughout the transformer.

The outgoing terminals of the windings are also shielded to prevent other external electromagnetic interference.

Only can make the original, so each winding between main remanent magnetism coupling, and meantime the equivalent distributed capacitance can be less than 0.01 pF, thereby significantly reducing the original, deputy winding capacitance current, effectively restrain all kinds of interference from the power supply as well as other circuit, tunnel transformer, three-phase transformer, isolation transformer, security transformer, special transformer, servo transformer.

Company Contact:

• Posted By: Baoding Zhongyi Electrical Material Manufacturing Co.,Ltd.

• Phone: +863125926018

• Address: Room A1109, Oriental Pearl Business Center, Yulan Street, Lianchi District, Baoding, Hebei, China, Baoding , Hebei , China

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• Website: https://www.firsttransformer.com

• Business Description: Baoding Zhongyi Electrical material Manufacturing Co., Ltd. is located at the beautiful Baiyangdian Science and Technology Town in Baoding City, with an advantageous geographical location and convenient transportation.
  
  Our company covers an area of 30, 000 square meters, the building area of 16, 000 square meters.
  
  The registered capital of the company is RMB 81, 000, 000.
  
  The company mainly produces: oil-immersed power transformers, dry-type transformers, box-type substation, high and low voltage switchgear assembly and a variety of special-type transformers.
  
  The hoisting, tooling and testing equipments are complete.
  
  Our company has passed the ISO9001-2015 international standard quality management system certification.
  
  All performance indicators of the products have reached the relevant national standards and international standards.
  
  Our company's products are widely used in different industries, involving power plants, chemicals, construction, mining, metallurgy, rail transportation and so on, best meeting the needs of various users.
  
  Baoding Zhongyi Electrical Material Manufacturing Co., Ltd. follows the enterprise purpose of the "details determine the success or failure, integrity casts the future", abides by the business philosophy of the "integrity based, to be innovative ambitious", well always treat our customers warmly and provide qualified products and service to your satisfaction.
  
  The oil-immersed power transformers and dry-type transformers have passed the Test Report of the National Supervision and Inspection Center for Energy-saving Product Quality; Complete sets of low voltage switchgear (GGD2) (GCK) has passed the Test Report of China Compulsion Certification (CCC) from the State Bureau of Quality and Technical Supervision for Electrical Products; Indoor AC dray-out type metal clad switchgear KYN28A-12 / 1250-31.5, fixed AC metal-enclosed ring network cabinet XGN15-12 / 1250-31.5 and XGN15 metal-enclosed switchgears have passed the Test Report of the National Quality Supervision and Inspection center for High-voltage Electrical Appliances Product .