Casa > produtos >

Industrial Grade DC Demagnetizing Unit for Direct Current Line Integration

Name: Industrial Grade DC Demagnetizing Unit for Direct Current Line Integration
Brand: Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
SKU: XHXC110
Price: 4,115.00 USD
Availability: InStock

Detalhes do produto:

Lugar de origem:	Xi'an Shaanxi China
Marca:	XZH TEST
Certificação:	ISO CE
Número do modelo:	XHXC110

Informações detalhadas

Lugar de origem:

Xi'an Shaanxi China

Marca:

XZH TEST

Certificação:

ISO CE

Número do modelo:

XHXC110

Destacar:

High Light

Destacar:

Direct Current Line Integration DC Demagnetizing Unit

DC Resistance Testing Compatibility Transformer Demagnetizer

Industrial Grade Demagnetization Device

Trading Information

Quantidade de ordem mínima:

1 conjunto

Detalhes da embalagem:

embalagem de madeira

Tempo de entrega:

5-8 DIAS DE TRABALHO

Termos de pagamento:

T/T

Habilidade da fonte:

3000 unidades/ano

Descrição do produto

XHXC110 Demagnetizer for Power Transformers & CTs

The XHXC110 is a specialized tool for eliminating residual magnetism in large power transformers and current transformers post DC resistance testing. It is essential for shielding these assets from inrush current damage and enabling safe, reliable commissioning.

Ferromagnetic materials exhibit hysteresis, so residual magnetism lingers in transformer iron cores after tests like turns ratio and DC resistance measurements. When the transformer operates, this residual magnetism saturates half the iron core cycle, creating heavy harmonics in excitation current. This boosts reactive power use and risks relay protector misfires—leading to costly downtime. Demagnetization before commissioning is thus mandatory for stable transformer performance.

Upgraded from our original series, the XHXC110 offers automatic demagnetization (no repetitive 操作 for users), a larger LCD screen for enhanced data visibility, and intuitive two-button control: red for select/reset, green for confirm/start. Demagnetization time is cut from 30 minutes to under 4 minutes for faster workflows.

Industrial Grade DC Demagnetizing Unit for Direct Current Line Integration 0

Performance Characteristics:

Utilizes patented technology – DC frequency conversion attenuation principle;
Three-phase transformers achieve demagnetization by demagnetizing only phase B;
Features automatic current stabilization judgment and 16-bit AD data acquisition and processing;
Offers manual/automatic demagnetization modes;
Fast demagnetization speed – reduced from 30 minutes to no more than 4 minutes per cycle;
Significant demagnetization effect – increased from 80% to over 90% per cycle; Can directly utilize the current line of DC resistance testing, facilitating integration with DC resistance testing;
Suitable for eliminating residual magnetism in large power transformers and instrument transformers of 35kV and above before commissioning;
especially suitable for large-capacity transformers with voltage levels of 330kV and above;
This product is small in size and lightweight, making it ideal for field use.

Industrial Grade DC Demagnetizing Unit for Direct Current Line Integration 1

Risks of Residual Magnetism

Relay protection misoperation leads to repeated transformer commissioning failures;
Voltage surges from short-circuit fault clearance trigger protection misfires, shutting down all transformer-side loads;
Inrush current from an unloaded Substation A transformer causes "sympathetic inrush" in nearby Substations B/C transformers, leading to mis-tripping and widespread outages;
Excessive electric power from inrush current damages transformers and circuit breakers;
Switching overvoltage induced by residual magnetism harms electrical equipment;
DC components in inrush current over-magnetize CT magnetic circuits, degrading measurement precision and relay protection reliability;
Harmonics in inrush current contaminate grid power quality;
Grid voltage fluctuations (spikes/drops) disrupt other electrical equipment operation.

Etiquetas:

Industrial Grade DC Demagnetizing Unit for Direct Current Line Integration

High Light

Destacar:

Direct Current Line Integration DC Demagnetizing Unit

DC Resistance Testing Compatibility Transformer Demagnetizer

Industrial Grade Demagnetization Device

20A winding resistance tester,

DC winding resistance tester,

DC winding resistance meter

DC Demagnetizing Unit with Automatic Current Stabilization

DC Magnetizer with Auto/Manual Demagnetization

Power and Current Transformer Demagnetizer for Efficient Magnetic Field Removal

Customizable DC Demagnetizing Unit with DC Power and Industrial Grade Transformer Demagnetizer

Industrial Grade DC Demagnetizing Unit with 5A Demagnetizing Current

DC Industrial Magnetizer with Direct Resistance Demagnetization

DC Power Transformer Demagnetizer with 50Hz ± 1Hz Frequency