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 300VA to 1000KVA, it meets IEC439, GB5226 and other standards. The winding adopts whole-row windings. Manufacturing method: The transformer is vacuum dipped to make the insulation level of the transformer reach F or H, and the product performance reaches the leading level.

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 300VA to 1000KVA, it meets IEC439, GB5226 and other standards. The winding adopts whole-row windings. Manufacturing method: The transformer is vacuum dipped to make the insulation level of the transformer reach F or H, and the product performance reaches the leading level.

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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 300VA to 1000KVA, it meets IEC439, GB5226 and other standards. The winding adopts whole-row windings. Manufacturing method: The transformer is vacuum dipped to make the insulation level of the transformer reach F or H, and the product performance reaches the leading level.

SG series three-phase dry-type isolation transformers are generally applicable to circuits with AC 50Hz to 60Hz and voltages below 660V. They are widely used in imported important equipment, precision machine tools, mechanical and electronic equipment, rectifiers, and lighting. The various input and output voltage levels of the product, the connection group, the number and position of the adjustment taps (usually ±5%), the distribution of winding capacity, the equipment of the secondary single-phase winding, the use of the rectifier circuit, whether it is required to bring The shell, etc., can be carefully designed and manufactured according to user requirements. Shielding can further avoid the high-frequency pulse interference (pulse and high-frequency noise) coupled by the transformer, which can effectively prevent it, but the transformer must be properly grounded and very strict, otherwise the anti-common mode interference will be ineffective.

 

Reference/Executive Standard

GB 1094.6-2011 National Power Transformer Standard

GB 1094.6-2011 Isolating Transformer Standard

JB/T 9646-1999 Transformer Standard

 

Isolation transformer technical specification

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)

 

Technical specification

Specification Transformer size (cm) Shell size (cm) Weight (kg) Specification Transformer size (cm) Shell size (cm) Weight (kg)
STS-SG-10KVA 52×42×52 70×35×77 115 STS-SG-150KVA 85×37×68 120×65×115 750
STS-SG-15KVA 52×42×52 70×35×77 165 STS-SG-180KVA 95×45×83 120×65×115 930
STS-SG-20KVA 55×28×65 80×40×87 176 STS-SG-200KVA 95×45×83 120×65×115 1080
STS-SG-30KVA 55×28×65 80×40×87 200 STS-SG-250KVA 95×45×83 120×65×115 1180
STS-SG-40KVA 60×26×38 80×40×87 245 STS-SG-300KVA 105×45×95 120×70×125 1450
STS-SG-50KVA 60×26×38 80×40×87 270 STS-SG-320KVA 105×45×95 130×50×135 1700
STS-SG-60KVA 65×30×45 90×50×95 330 STS-SG-350KVA 105×45×95 130×50×135 1950
STS-SG-70KVA 65×30×45 90×50×95 360 STS-SG-400KVA 115×55×105 140×60×145 2150
STS-SG-80KVA 75×35×68 100×50×105 430 STS-SG-450KVA 115×55×105 140×60×145 2450
STS-SG-100KVA 75×35×68 100×50×105 500 STS-SG-500KVA 120×60×115 145×65×150 2700
STS-SG-120KVA 75×35×68 100×50×105 580 STS-SG-600KVA 120×60×115 145×65×150 2950

 

Identification code

 

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 300VA to 1000KVA, it meets IEC439, GB5226 and other standards. The winding adopts whole-row windings. Manufacturing method: The transformer is vacuum dipped to make the insulation level of the transformer reach F or H, and the product performance reaches the leading level.

SG series three-phase dry-type isolation transformers are generally applicable to circuits with AC 50Hz to 60Hz and voltages below 660V. They are widely used in imported important equipment, precision machine tools, mechanical and electronic equipment, rectifiers, and lighting. The various input and output voltage levels of the product, the connection group, the number and position of the adjustment taps (usually ±5%), the distribution of winding capacity, the equipment of the secondary single-phase winding, the use of the rectifier circuit, whether it is required to bring The shell, etc., can be carefully designed and manufactured according to user requirements. Shielding can further avoid the high-frequency pulse interference (pulse and high-frequency noise) coupled by the transformer, which can effectively prevent it, but the transformer must be properly grounded and very strict, otherwise the anti-common mode interference will be ineffective.

 

Reference/Executive Standard

GB 1094.6-2011 National Power Transformer Standard

GB 1094.6-2011 Isolating Transformer Standard

JB/T 9646-1999 Transformer Standard

 

Isolation transformer technical specification

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)

 

Technical specification

Specification Transformer size (cm) Shell size (cm) Weight (kg) Specification Transformer size (cm) Shell size (cm) Weight (kg)
STS-SG-10KVA 52×42×52 70×35×77 115 STS-SG-150KVA 85×37×68 120×65×115 750
STS-SG-15KVA 52×42×52 70×35×77 165 STS-SG-180KVA 95×45×83 120×65×115 930
STS-SG-20KVA 55×28×65 80×40×87 176 STS-SG-200KVA 95×45×83 120×65×115 1080
STS-SG-30KVA 55×28×65 80×40×87 200 STS-SG-250KVA 95×45×83 120×65×115 1180
STS-SG-40KVA 60×26×38 80×40×87 245 STS-SG-300KVA 105×45×95 120×70×125 1450
STS-SG-50KVA 60×26×38 80×40×87 270 STS-SG-320KVA 105×45×95 130×50×135 1700
STS-SG-60KVA 65×30×45 90×50×95 330 STS-SG-350KVA 105×45×95 130×50×135 1950
STS-SG-70KVA 65×30×45 90×50×95 360 STS-SG-400KVA 115×55×105 140×60×145 2150
STS-SG-80KVA 75×35×68 100×50×105 430 STS-SG-450KVA 115×55×105 140×60×145 2450
STS-SG-100KVA 75×35×68 100×50×105 500 STS-SG-500KVA 120×60×115 145×65×150 2700
STS-SG-120KVA 75×35×68 100×50×105 580 STS-SG-600KVA 120×60×115 145×65×150 2950

 

Identification code

 

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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