Three-phase isolating transformer


The SG series three coherent type isolation transformer is my company in reference to the international similar products, combined with the application of the basis of the development and production of energy saving type dry transformer, from 300VA to 1000KVA, in line with IEC439, GB5226 and other standards, windings using the whole series winding method; Transformer vacuum dip paint, so that the insulation grade of the transformer to F or H, product performance to the leading level.

The SG series three coherent type isolation transformer is my company in reference to the international similar products, combined with the application of the basis of the development and production of energy saving type dry transformer, from 300VA to 1000KVA, in line with IEC439, GB5226 and other standards, windings using the whole series winding method; Transformer vacuum dip paint, so that the insulation grade of the transformer to F or H, product performance to the leading level.

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Transformer
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Reactive power compensation
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Customization

Isolating transformer

SG series three coherent type isolation transformer is my company in reference to the international similar products, combined with the application of the basis of the development and production of energy saving type dry transformer, from 300VA to 1000KVA, in line with IEC439, GB5226 and other standards, windings using the whole series winding method; Transformer vacuum dip paint, so that the insulation grade of the transformer to F or H, product performance to the leading level.

SG series three coherent type isolation transformer is generally suitable for AC 50HZ to 60HZ, voltage 660V below the circuit, all over the import of important equipment, precision machine tools, mechanical and electronic equipment, rectifier device, lighting. Products of various input and output voltage, high and low, connecting groups, regulating tap number and position (generally ±5%), the distribution of winding capacity, secondary single-phase winding equipment, the use of rectifier circuit, whether the requirements with shell, etc., can be carefully designed and manufactured according to the requirements of users. Shielding will further eliminate the high frequency pulse interference (pulse and high frequency noise) coupled by the transformer can be effectively prevented, but the transformer must be properly grounded, very strict, otherwise anti-common mode interference will have no effect.

 

Reference/implementation standards

National standard for power transformers

GB 1094.6-2011 Isolation transformer standard

JB/T 9646-1999 transformer standard

 

Isolation transformer technical specifications

Capacity 1KVA-1000KVA,non-standard can be customized
Input voltage

Single phase: 110V 220V 380V,non-standard can be customized

 

Three-phase: 220V 380V 660V 690V 1140V 3300V,non-standard can be customized

Output voltage

Single phase: 12V 24V 48V 100V 110V 120V 220V,non-standard can be customized

 

Three-phase: 100V 110V 220V 380V 400V 660V  690V,non-standard can be customized

Temperature rise ≤70K 
Withstand voltage 3000V no breakdown (factory test-for 380V system voltage)
Insulation class F grade or H grade
Noise <60db (one meter away)

Isolating transformer

SG series three coherent type isolation transformer is my company in reference to the international similar products, combined with the application of the basis of the development and production of energy saving type dry transformer, from 300VA to 1000KVA, in line with IEC439, GB5226 and other standards, windings using the whole series winding method; Transformer vacuum dip paint, so that the insulation grade of the transformer to F or H, product performance to the leading level.

SG series three coherent type isolation transformer is generally suitable for AC 50HZ to 60HZ, voltage 660V below the circuit, all over the import of important equipment, precision machine tools, mechanical and electronic equipment, rectifier device, lighting. Products of various input and output voltage, high and low, connecting groups, regulating tap number and position (generally ±5%), the distribution of winding capacity, secondary single-phase winding equipment, the use of rectifier circuit, whether the requirements with shell, etc., can be carefully designed and manufactured according to the requirements of users. Shielding will further eliminate the high frequency pulse interference (pulse and high frequency noise) coupled by the transformer can be effectively prevented, but the transformer must be properly grounded, very strict, otherwise anti-common mode interference will have no effect.

 

Reference/implementation standards

National standard for power transformers

GB 1094.6-2011 Isolation transformer standard

JB/T 9646-1999 transformer standard

 

Isolation transformer technical specifications

Capacity 1KVA-1000KVA,non-standard can be customized
Input voltage

Single phase: 110V 220V 380V,non-standard can be customized

 

Three-phase: 220V 380V 660V 690V 1140V 3300V,non-standard can be customized

Output voltage

Single phase: 12V 24V 48V 100V 110V 120V 220V,non-standard can be customized

 

Three-phase: 100V 110V 220V 380V 400V 660V  690V,non-standard can be customized

Temperature rise ≤70K 
Withstand voltage 3000V no breakdown (factory test-for 380V system voltage)
Insulation class F grade or H grade
Noise <60db (one meter away)

Energy Feedback Reactor

Reference / Implementing Standards GB1094.6-2011 Electric transformer JB9644-1999 Semiconductor electric drive reactor IEEE519 - 1992/EN6100-5-2

Harmonic filter

Reference/ lmplementing Standards IEEE519(EN - 2-5) Electromagnetic Magnetic Compatibility(EMC) EN61558-2-20 (VDE 507-2-20) Safety of Power Supply Equipment and Similar Equipment GB145493-93 Power Quality Public Power Grid Harmonic Wave

LCL filter

Reference/ lmplementing Standards GB 1094.6-2011 Reactor GB 1094.6-2011 Reactor (eqvlEC289:1987) JB 9644-1999 semiconductor electric drive reactor IEEE519-1992 GBT14549-93

EMI filter

Please see the details

Output Reactor

It is installed at the output end of the inverter, which is used to limit the capacitive charging current of the inverter and the motor connecting cable, and inactivate the voltage rise rate of PWM wave output by the inverter. When the length of motor cable exceeds a certain value, it is recommended to insert a motor reactor between the inverter and the motor, which is used to compensate the recharging current of capacitor in case of the long wires. The maximum length depends on the rated value of the frequency converter and the type of the motor cable.

Input Reactor

The input reactor can be used to provide improved overload protection for the line power supply, and to reduce the current harmonic distortion produced by the inverter. Increase the power factor of input power supply, reduce the high harmonic, and restrain the surge of frequency converter in the power supply equipment

Isolation transformer

The SG series three-phase dry-type isolation transformer is a new generation of energy-saving dry-type transformers developed and produced by our company on the basis of reference to similar international products and combined with applications. From...

DC Smoothing Reactor

DC smoothing reactor is used in the rectifying circuit to restrain the ripple pulse component after rectification and make the rectified current continuous, so as to improve the output branch waveform and guarantee the normal operation of DC equipment. The smoothing reactor is used as the series reactor in DC machine supplied by the converter, in order to eliminate the DC link in the current and voltage DC link converter; It is supposed to decouple the converter components on DC side. The power converter on DC side has high pulse circuit feedback to reduce the difference value limit, so as to limit the ring current on the connection with ring current, at the same time, limit the the rising rate of current. The smoothing reactor adopts the iron core of TEM and TET or TPK air core reactor, depending on the requirements on electromagnetic induction.

Sine wave filter

Reference / lmplementing Standards: IEEE519(EN61000-5-2) Electromagnetic compatibility (EMC) EN 61558-2-20(VDE507-2-20) Safety of power supply equipment and similar equipment GB 145493-93 Power quality, utility grid harmonics

Dv/dt filter

Reference / Implementing Standards: IEC60076-6:2007 Reactor GB1094.6-2011 Reactor (eqvIEC289:1987) JB9644-1999 Semiconductor electric drive reactor

Energy Feedback Reactor

Reference / Implementing Standards GB1094.6-2011 Electric transformer JB9644-1999 Semiconductor electric drive reactor IEEE519 - 1992/EN6100-5-2

Harmonic filter

Reference/ lmplementing Standards IEEE519(EN - 2-5) Electromagnetic Magnetic Compatibility(EMC) EN61558-2-20 (VDE 507-2-20) Safety of Power Supply Equipment and Similar Equipment GB145493-93 Power Quality Public Power Grid Harmonic Wave

LCL filter

Reference/ lmplementing Standards GB 1094.6-2011 Reactor GB 1094.6-2011 Reactor (eqvlEC289:1987) JB 9644-1999 semiconductor electric drive reactor IEEE519-1992 GBT14549-93

EMI filter

Please see the details

Output Reactor

It is installed at the output end of the inverter, which is used to limit the capacitive charging current of the inverter and the motor connecting cable, and inactivate the voltage rise rate of PWM wave output by the inverter. When the length of motor cable exceeds a certain value, it is recommended to insert a motor reactor between the inverter and the motor, which is used to compensate the recharging current of capacitor in case of the long wires. The maximum length depends on the rated value of the frequency converter and the type of the motor cable.

Input Reactor

The input reactor can be used to provide improved overload protection for the line power supply, and to reduce the current harmonic distortion produced by the inverter. Increase the power factor of input power supply, reduce the high harmonic, and restrain the surge of frequency converter in the power supply equipment

Isolation transformer

The SG series three-phase dry-type isolation transformer is a new generation of energy-saving dry-type transformers developed and produced by our company on the basis of reference to similar international products and combined with applications. From...

DC Smoothing Reactor

DC smoothing reactor is used in the rectifying circuit to restrain the ripple pulse component after rectification and make the rectified current continuous, so as to improve the output branch waveform and guarantee the normal operation of DC equipment. The smoothing reactor is used as the series reactor in DC machine supplied by the converter, in order to eliminate the DC link in the current and voltage DC link converter; It is supposed to decouple the converter components on DC side. The power converter on DC side has high pulse circuit feedback to reduce the difference value limit, so as to limit the ring current on the connection with ring current, at the same time, limit the the rising rate of current. The smoothing reactor adopts the iron core of TEM and TET or TPK air core reactor, depending on the requirements on electromagnetic induction.


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