Dry-type transformer


This series of dry-type transformers are made of high-quality materials, scientific formulas, and production and testing equipment according to strict processes. They are fire-proof indoor dry-type transformers. It is especially suitable for occasions with limited installation space, close to the load center and special fire protection requirements.

This series of dry-type transformers are made of high-quality materials, scientific formulas, and production and testing equipment according to strict processes. They are fire-proof indoor dry-type transformers. It is especially suitable for occasions with limited installation space, close to the load center and special fire protection requirements.

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SC(B)10 dry-type transformer

 

This series of dry-type transformers are made of high-quality materials, scientific formulas, and production and testing equipment according to strict processes. They are fire-resistant indoor dry-type transformers. It is especially suitable for occasions with limited installation space, close to the load center and special fire protection requirements.

 

Product number

 

     SC(B)10 series, SC(B)11 series, SC(B)13 series

 

 

Product specifications

 

SC(B)10-30~2500kVA

 

Applications

 

   This series is a fire-proof indoor product, suitable for installation in places with limited space, close to the load center and fire-proof requirements. Such as: hotels, high-rise buildings, residential quarters, pavilions, petrochemical plants, underground mines, drilling platforms, refueling stations, etc.

 

Product Description

 

Dry-type transformer is a static electrical equipment whose main function is to transmit electrical energy. When the primary winding is energized with alternating current, alternating magnetic flux is generated through the iron core to induce an alternating electromotive force in the secondary winding; the level of the secondary induced electromotive force is related to the number of turns of the primary and secondary windings, that is, the voltage It is proportional to the number of turns. Dry-type transformers are mainly used for long-distance power transmission. The output voltage is boosted by a power step-up transformer in order to reduce the energy loss on the transmission line; when tens of thousands of volts or hundreds of thousands of volts are transmitted to the load area, it must be Through different power step-down transformers, the high voltage is reduced to different levels of voltage to meet the needs of a variety of loads.

 

1. The dry-type transformer reduces the resin thickness of the encapsulation layer and enhances the heat dissipation capacity of the coil;

2. The coil is reinforced with waved silk felt, which enhances the mechanical strength of the coil and improves the ability of the product to resist sudden short circuits;

3. The coil adopts a special process, which reduces the amount of partial discharge inside the coil and improves the electrical strength of the coil;

4. The low-voltage coil adopts a foil structure, which reduces the magnetic leakage at the end and improves the ability of the product to resist sudden short circuits;

5. The iron core adopts imported high-quality cold-rolled silicon steel sheet with low loss, and the iron core adopts a 45º full oblique joint structure, and the core column is tied with insulating tape to reduce noise and no-load loss;

6. The surface of the iron core is sealed with insulating resin to prevent moisture and rust, and the surface of the clamps and fasteners are treated to prevent corrosion;

7. The high-voltage winding is made of F-class insulated copper wire, and the glass fiber and epoxy resin composite material is used for insulation and casting under vacuum, and the glass fiber and epoxy resin are used for composite

The expansion coefficient of the material is similar to that of the copper conductor, and it has good impact resistance and crack resistance;

8. The resin mixed material poured into the high-voltage winding can penetrate into the gap of the coil, so that the coil has no air bubbles and the partial lowering of the coil;

9. The low-voltage winding adopts foil conductor to be wound in automatic foil winding. The internal welding adopts argon gas shielded welding on the winding machine, without external welding process; the low-voltage winding adopts F-class insulation between layers, and the rear end is used after winding. The resin is sealed and cured.

 

Conditions of Use

 

1. The altitude does not exceed 2500m.

2. Ambient temperature -15~+40℃

3. Air relative humidity: the average relative humidity of the tidal moon is 90%

4. The waveform of the power supply voltage is similar to a sine wave.

5. The symmetry of the multi-phase power supply voltage The power supply voltage connected to the multi-phase transformer should be approximately symmetrical.

6. A place where there is no severe vibration and shock vibration

7. There is no explosion hazard in the medium, and there is no place in the medium that corrodes metal and destroys the insulation gas and conductive dust

8. Places free from rain and snow

 

Technical specifications

 

Capacity 1KVA-1000KVA
Input voltage

Single phase: 110V 220V 380V

Three-phase: 220V 380V 660V 690V 1140V 3300V

Output voltage

Single phase: 12V 24V 48V 100V 110V 120V 220V   

 

Three-phase: 100V 110V 220V 380V 400V 660V  690V

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)

 

 

 

 

SC(B)10 dry-type transformer

 

This series of dry-type transformers are made of high-quality materials, scientific formulas, and production and testing equipment according to strict processes. They are fire-resistant indoor dry-type transformers. It is especially suitable for occasions with limited installation space, close to the load center and special fire protection requirements.

 

Product number

 

     SC(B)10 series, SC(B)11 series, SC(B)13 series

 

 

Product specifications

 

SC(B)10-30~2500kVA

 

Applications

 

   This series is a fire-proof indoor product, suitable for installation in places with limited space, close to the load center and fire-proof requirements. Such as: hotels, high-rise buildings, residential quarters, pavilions, petrochemical plants, underground mines, drilling platforms, refueling stations, etc.

 

Product Description

 

Dry-type transformer is a static electrical equipment whose main function is to transmit electrical energy. When the primary winding is energized with alternating current, alternating magnetic flux is generated through the iron core to induce an alternating electromotive force in the secondary winding; the level of the secondary induced electromotive force is related to the number of turns of the primary and secondary windings, that is, the voltage It is proportional to the number of turns. Dry-type transformers are mainly used for long-distance power transmission. The output voltage is boosted by a power step-up transformer in order to reduce the energy loss on the transmission line; when tens of thousands of volts or hundreds of thousands of volts are transmitted to the load area, it must be Through different power step-down transformers, the high voltage is reduced to different levels of voltage to meet the needs of a variety of loads.

 

1. The dry-type transformer reduces the resin thickness of the encapsulation layer and enhances the heat dissipation capacity of the coil;

2. The coil is reinforced with waved silk felt, which enhances the mechanical strength of the coil and improves the ability of the product to resist sudden short circuits;

3. The coil adopts a special process, which reduces the amount of partial discharge inside the coil and improves the electrical strength of the coil;

4. The low-voltage coil adopts a foil structure, which reduces the magnetic leakage at the end and improves the ability of the product to resist sudden short circuits;

5. The iron core adopts imported high-quality cold-rolled silicon steel sheet with low loss, and the iron core adopts a 45º full oblique joint structure, and the core column is tied with insulating tape to reduce noise and no-load loss;

6. The surface of the iron core is sealed with insulating resin to prevent moisture and rust, and the surface of the clamps and fasteners are treated to prevent corrosion;

7. The high-voltage winding is made of F-class insulated copper wire, and the glass fiber and epoxy resin composite material is used for insulation and casting under vacuum, and the glass fiber and epoxy resin are used for composite

The expansion coefficient of the material is similar to that of the copper conductor, and it has good impact resistance and crack resistance;

8. The resin mixed material poured into the high-voltage winding can penetrate into the gap of the coil, so that the coil has no air bubbles and the partial lowering of the coil;

9. The low-voltage winding adopts foil conductor to be wound in automatic foil winding. The internal welding adopts argon gas shielded welding on the winding machine, without external welding process; the low-voltage winding adopts F-class insulation between layers, and the rear end is used after winding. The resin is sealed and cured.

 

Conditions of Use

 

1. The altitude does not exceed 2500m.

2. Ambient temperature -15~+40℃

3. Air relative humidity: the average relative humidity of the tidal moon is 90%

4. The waveform of the power supply voltage is similar to a sine wave.

5. The symmetry of the multi-phase power supply voltage The power supply voltage connected to the multi-phase transformer should be approximately symmetrical.

6. A place where there is no severe vibration and shock vibration

7. There is no explosion hazard in the medium, and there is no place in the medium that corrodes metal and destroys the insulation gas and conductive dust

8. Places free from rain and snow

 

Technical specifications

 

Capacity 1KVA-1000KVA
Input voltage

Single phase: 110V 220V 380V

Three-phase: 220V 380V 660V 690V 1140V 3300V

Output voltage

Single phase: 12V 24V 48V 100V 110V 120V 220V   

 

Three-phase: 100V 110V 220V 380V 400V 660V  690V

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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