Transmission & Distribution Network

Features

• Strong anti-short-circuit ability, low loss, low no-load current, strong impact resistance capability, low partial discharge, low noise, good heat sinking capacity.
• Performance parameters are better than GB and IEC standards.
• Safe, flame retardant, fireproof, non-polluting, it can be installed directly in the load site.
• Maintenance-free, easy to install, low operating costs.
• High reliability, high mechanical strength.
• Good seismic capability.
• Good anti-moisture & anti-corrosion features.
• Good overload capability, in the absence of air-cooling, it can withstand 120% of the load long-term service.
• Suitable to substations located in densely populated, narrow urban places.Standard modular design to facilitate circuit extension, modification and replacement.
• Feasible to any replacement in both circumstances of any unit in fault and according user needs.
• Smaller dimension makes it more convenient to be moved, transported or replaced.
• Altitude: ≤1000m
• Ambient air temperature
• Maximum temperature: +40°C
• Minimum temperature: -25°C (Outdoor dry type power transformer)
• Minimum temperature: -5°C (Indoor dry type power transformer)
• Highest average temperature of month: +30°C
• Highest average temperature of year month: +20°C
• Relative air humidity: ≤90%, There should not be water on the coil surface; Three-phase power supply voltage of three-phase transformer should be approximately symmetrical Power supply voltage wave should be similar to sine wave.

Parameters

SC (B) 10 Three Phase Epoxy Resin Cast Dry Type Power Transformer

Features

• Strong anti-short-circuit ability, low loss, low no-load current, strong impact resistance capability, low partial discharge, low noise, good heat sinking capacity.
• Performance parameters are better than GB and IEC standards.
• Safe, flame retardant, fireproof, non-polluting, it can be installed directly in the load site.
• Maintenance-free, easy to install, low operating costs.
• High reliability, high mechanical strength.
• Good seismic capability.
• Good anti-moisture & anti-corrosion features.
• Good overload capability, in the absence of air-cooling, it can withstand 120% of the load long-term service.
• Suitable to substations located in densely populated, narrow urban places.

Normal Service Conditions

• Altitude: ≤1000m
• Ambient air temperature
• Maximum temperature: +40°C
• Minimum temperature: -25°C (Outdoor dry type power transformer)
• Minimum temperature: -5°C (Indoor dry type power transformer)
• Highest average temperature of month: +30°C
• Highest average temperature of year month: +20°C
• Relative air humidity: ≤90%, There should not be water on the coil surface; Three-phase power supply voltage of three-phase transformer should be approximately symmetrical Power supply voltage wave should be similar to sine wave.

Parameters

SC (B) 10 Three Phase Epoxy Resin Cast Dry Type Power Transformer

Features

• Strong anti-short-circuit ability, low loss, low no-load current, strong impact resistance capability, low partial discharge, low noise, good heat sinking capacity.
• Performance parameters are better than GB and IEC standards.
• Safe, flame retardant, fireproof, non-polluting, it can be installed directly in the load site.
• Maintenance-free, easy to install, low operating costs.
• High reliability, high mechanical strength.
• Good seismic capability.
• Good anti-moisture & anti-corrosion features.
• Good overload capability, in the absence of air-cooling, it can withstand 120% of the load long-term service.
• Suitable to substations located in densely populated, narrow urban places.

Normal Service Conditions

• Altitude: ≤1000m
• Ambient air temperature
• Maximum temperature: +40°C
• Minimum temperature: -25°C (Outdoor dry type power transformer)
• Minimum temperature: -5°C (Indoor dry type power transformer)
• Highest average temperature of month: +30°C
• Highest average temperature of year month: +20°C
• Relative air humidity: ≤90%, There should not be water on the coil surface; Three-phase power supply voltage of three-phase transformer should be approximately symmetrical Power supply voltage wave should be similar to sine wave.

Parameters

SC (B) 10 Three Phase Epoxy Resin Cast Dry Type Power Transformer

Features

Core
High-quality grain-oriented cold-rolled silicon steel sheet are employed, and the whole oblique non-porous banding structure are used here. The core has a multi-level ladder shape, with three joints or five joints, which is of low no-load loss and low noise. Rolled cores are direct rolled by certain special equipment, which gives the advantages including no seam, no corner weight, reluctance reduction, low no-load loss. Amorphous alloy is an advanced core material, which leads to an average reduction of 72% no-load loss and a reduction of 50% no-load current.

Coil
The high-quality QQ acetal enameled round copper wire and oxygen-free copper rod are used to form the coil. The coil type includes cylinder type, continuous type, new type spiral type, split type, etc. It has sufficient electrical strength, mechanical strength and cooling capacity. In order to increase the capacity of anti-short-circuit of the transformer, self-adhesive transposition wire is used in the 35kV and above windings. The wire is made of self-adhesive acetal enameled flat wire, and after winding into a coil, it is heated so that the flat wire could be bonded between each other to form a rigid coil, which can withstand greater bending stress, thereby enhancing the capacity of anti-short-circuit of the transformer. The most important feature of the self-adhesive transposition wire is that it can reduce the loss of the transformer, and as a result of multi-stranded conductor with transposition, the eddy current loss and circulation loss are greatly reduced, it can also reduce the temperature rise of the partial hot spots of winding, thus the winding temperature distribution is more uniform.

Oil Tank
The oil tank is made of high quality steel plate, and the shape includes elliptical shape, rectangular shape, etc. The type of the radiator includes: corrugated sheet type radiator, expansion type radiator and corrugated type tank. The sealing performance test is conducted on oil tanks. The inside and outside surfaces are pickling and phosphate treated, and then spray priming paint for three times and surface paint for one time, which give its corrosion resistance.

Normal Service Condition

• Ambient air temperature
• Maximum temperature: +40°C
• Minimum temperature: -45°C
• Average temperature of the warmest month: +30°C
• The hottest annual average temperature: +20°C
• Altitude: ≤1000m
• Contamination class: Ill
• Seismic intensity: VIII
• Power supply voltage waveform: approximately sinusoidal

Note: If the above conditions are exceeded, please specify when ordering, for special consideration.

Parameters

SC (B) 10 Three Phase Epoxy Resin Cast Dry Type Power Transformer

Features

Core
High-quality grain-oriented cold-rolled silicon steel sheet are employed, and the whole oblique non-porous banding structure are used here. The core has a multi-level ladder shape, with three joints or five joints, which is of low no-load loss and low noise. Rolled cores are direct rolled by certain special equipment, which gives the advantages including no seam, no corner weight, reluctance reduction, low no-load loss. Amorphous alloy is an advanced core material, which leads to an average reduction of 72% no-load loss and a reduction of 50% no-load current.

Coil
The high-quality QQ acetal enameled round copper wire and oxygen-free copper rod are used to form the coil. The coil type includes cylinder type, continuous type, new type spiral type, split type, etc. It has sufficient electrical strength, mechanical strength and cooling capacity. In order to increase the capacity of anti-short-circuit of the transformer, self-adhesive transposition wire is used in the 35kV and above windings. The wire is made of self-adhesive acetal enameled flat wire, and after winding into a coil, it is heated so that the flat wire could be bonded between each other to form a rigid coil, which can withstand greater bending stress, thereby enhancing the capacity of anti-short-circuit of the transformer. The most important feature of the self-adhesive transposition wire is that it can reduce the loss of the transformer, and as a result of multi-stranded conductor with transposition, the eddy current loss and circulation loss are greatly reduced, it can also reduce the temperature rise of the partial hot spots of winding, thus the winding temperature distribution is more uniform.

Oil Tank
The oil tank is made of high quality steel plate, and the shape includes elliptical shape, rectangular shape, etc. The type of the radiator includes: corrugated sheet type radiator, expansion type radiator and corrugated type tank. The sealing performance test is conducted on oil tanks. The inside and outside surfaces are pickling and phosphate treated, and then spray priming paint for three times and surface paint for one time, which give its corrosion resistance.

Normal Service Condition

• Ambient air temperature
• Maximum temperature: +40°C
• Minimum temperature: -45°C
• Average temperature of the warmest month: +30°C
• The hottest annual average temperature: +20°C
• Altitude: ≤1000m
• Contamination class: Ill
• Seismic intensity: VIII
• Power supply voltage waveform: approximately sinusoidal

Note: If the above conditions are exceeded, please specify when ordering, for special consideration.

Parameters

S11 20Kv Three Phase Oil Immersed Natural Air Cooling Double Winding off Circuit Tap Changing Distribution Transformer

Features

Core
High-quality grain-oriented cold-rolled silicon steel sheet are employed, and the whole oblique non-porous banding structure are used here. The core has a multi-level ladder shape, with three joints or five joints, which is of low no-load loss and low noise. Rolled cores are direct rolled by certain special equipment, which gives the advantages including no seam, no corner weight, reluctance reduction, low no-load loss. Amorphous alloy is an advanced core material, which leads to an average reduction of 72% no-load loss and a reduction of 50% no-load current.

Coil
The high-quality QQ acetal enameled round copper wire and oxygen-free copper rod are used to form the coil. The coil type includes cylinder type, continuous type, new type spiral type, split type, etc. It has sufficient electrical strength, mechanical strength and cooling capacity. In order to increase the capacity of anti-short-circuit of the transformer, self-adhesive transposition wire is used in the 35kV and above windings. The wire is made of self-adhesive acetal enameled flat wire, and after winding into a coil, it is heated so that the flat wire could be bonded between each other to form a rigid coil, which can withstand greater bending stress, thereby enhancing the capacity of anti-short-circuit of the transformer. The most important feature of the self-adhesive transposition wire is that it can reduce the loss of the transformer, and as a result of multi-stranded conductor with transposition, the eddy current loss and circulation loss are greatly reduced, it can also reduce the temperature rise of the partial hot spots of winding, thus the winding temperature distribution is more uniform.

Oil Tank
The oil tank is made of high quality steel plate, and the shape includes elliptical shape, rectangular shape, etc. The type of the radiator includes: corrugated sheet type radiator, expansion type radiator and corrugated type tank. The sealing performance test is conducted on oil tanks. The inside and outside surfaces are pickling and phosphate treated, and then spray priming paint for three times and surface paint for one time, which give its corrosion resistance.

Normal Service Condition

• Ambient air temperature
• Maximum temperature: +40°C
• Minimum temperature: -45°C
• Average temperature of the warmest month: +30°C
• The hottest annual average temperature: +20°C
• Altitude: ≤1000m
• Contamination class: Ill
• Seismic intensity: VIII
• Power supply voltage waveform: approximately sinusoidal

Note: If the above conditions are exceeded, please specify when ordering, for special consideration.

Parameters

S11 35Kv Three Phase Oil Immersed Natural Air Cooling Double Winding off Circuit Tap Changing Distribution Transformer

Features

Core
High-quality grain-oriented cold-rolled silicon steel sheet are employed, and the whole oblique non-porous banding structure are used here. The core has a multi-level ladder shape, with three joints or five joints, which is of low no-load loss and low noise. Rolled cores are direct rolled by certain special equipment, which gives the advantages including no seam, no corner weight, reluctance reduction, low no-load loss. Amorphous alloy is an advanced core material, which leads to an average reduction of 72% no-load loss and a reduction of 50% no-load current.

Coil
The high-quality QQ acetal enameled round copper wire and oxygen-free copper rod are used to form the coil. The coil type includes cylinder type, continuous type, new type spiral type, split type, etc. It has sufficient electrical strength, mechanical strength and cooling capacity. In order to increase the capacity of anti-short-circuit of the transformer, self-adhesive transposition wire is used in the 35kV and above windings. The wire is made of self-adhesive acetal enameled flat wire, and after winding into a coil, it is heated so that the flat wire could be bonded between each other to form a rigid coil, which can withstand greater bending stress, thereby enhancing the capacity of anti-short-circuit of the transformer. The most important feature of the self-adhesive transposition wire is that it can reduce the loss of the transformer, and as a result of multi-stranded conductor with transposition, the eddy current loss and circulation loss are greatly reduced, it can also reduce the temperature rise of the partial hot spots of winding, thus the winding temperature distribution is more uniform.

Oil Tank
The oil tank is made of high quality steel plate, and the shape includes elliptical shape, rectangular shape, etc. The type of the radiator includes: corrugated sheet type radiator, expansion type radiator and corrugated type tank. The sealing performance test is conducted on oil tanks. The inside and outside surfaces are pickling and phosphate treated, and then spray priming paint for three times and surface paint for one time, which give its corrosion resistance.

Normal Service Condition

• Ambient air temperature
• Maximum temperature: +40°C
• Minimum temperature: -45°C
• Average temperature of the warmest month: +30°C
• The hottest annual average temperature: +20°C
• Altitude: ≤1000m
• Contamination class: Ill
• Seismic intensity: VIII
• Power supply voltage waveform: approximately sinusoidal

Note: If the above conditions are exceeded, please specify when ordering, for special consideration.

Parameters

S(F)11 66Kv Three Phase Oil Immersed Natural (Forced) Air Cooling Double Winding off Circuit Tap Changing Distribution Transformer

Features

Core
High-quality grain-oriented cold-rolled silicon steel sheet are employed, and the whole oblique non-porous banding structure are used here. The core has a multi-level ladder shape, with three joints or five joints, which is of low no-load loss and low noise. Rolled cores are direct rolled by certain special equipment, which gives the advantages including no seam, no corner weight, reluctance reduction, low no-load loss. Amorphous alloy is an advanced core material, which leads to an average reduction of 72% no-load loss and a reduction of 50% no-load current.

Coil
The high-quality QQ acetal enameled round copper wire and oxygen-free copper rod are used to form the coil. The coil type includes cylinder type, continuous type, new type spiral type, split type, etc. It has sufficient electrical strength, mechanical strength and cooling capacity. In order to increase the capacity of anti-short-circuit of the transformer, self-adhesive transposition wire is used in the 35kV and above windings. The wire is made of self-adhesive acetal enameled flat wire, and after winding into a coil, it is heated so that the flat wire could be bonded between each other to form a rigid coil, which can withstand greater bending stress, thereby enhancing the capacity of anti-short-circuit of the transformer. The most important feature of the self-adhesive transposition wire is that it can reduce the loss of the transformer, and as a result of multi-stranded conductor with transposition, the eddy current loss and circulation loss are greatly reduced, it can also reduce the temperature rise of the partial hot spots of winding, thus the winding temperature distribution is more uniform.

Oil Tank
The oil tank is made of high quality steel plate, and the shape includes elliptical shape, rectangular shape, etc. The type of the radiator includes: corrugated sheet type radiator, expansion type radiator and corrugated type tank. The sealing performance test is conducted on oil tanks. The inside and outside surfaces are pickling and phosphate treated, and then spray priming paint for three times and surface paint for one time, which give its corrosion resistance.

Normal Service Condition

• Ambient air temperature
• Maximum temperature: +40°C
• Minimum temperature: -45°C
• Average temperature of the warmest month: +30°C
• The hottest annual average temperature: +20°C
• Altitude: ≤1000m
• Contamination class: Ill
• Seismic intensity: VIII
• Power supply voltage waveform: approximately sinusoidal

Note: If the above conditions are exceeded, please specify when ordering, for special consideration.

Parameters

S(F)11 110Kv Three Phase Oil Immersed Natural (Forced) Air Cooling Double Winding (L.V.:10kV) off Circuit Tap Changing Distribution Transformer.

Features

The oil tank is equipped with 35kV 11 type oil-immersed step-up transformer, and the oil tank is fully sealed structure, the radiator is rationally laid, and the high-performance seals, pressure relieve valve, gas relay, oil level gauge, temperature controller are equipped. The advantages are low loss, low noise, low temperature rise, high resistance to short circuit, high overload, no leakage and so on. In addition, the high-voltage load switch and high-voltage fuses are also placed in the oil, the use of transformer oil as an insulating medium, which has a strong electrical performance.

In addition, high-voltage load switch and high-voltage fuses are also placed in the oil tank, the transformer oil is used as the insulating medium, which makes it has a strong electrical feature.

The high-voltage room is equipped with enhanced anti-contamination outlet bushing, at the end there set the fully insulated cable contacts, and the arrester is also equipped to reduce the over-voltage risk. The high-voltage room is also equipped with a sensor. Electromagnetic group and live display are employed to prevent misuse.

Low-voltage room is generally employed the dual-line as the incoming line, and equipped with circuit breaker, disconnector, current transformer, surge arrester and other components, another substation is used in it as a transformer for the entire substation power supply.

The three compartments are structurally independent and electrically interconnected. This not only ensures the safety and convenience of operations, but also ensures the safety and reliability of operations. The transformer box is designed to employ a unique labyrinth sealing type, coupled with high-performance long-life seals, all the incoming and out coming line and the vents are equipped with anti-dust chamber, which can effectively prevent dust, rain and snow. This product truly achieves full condition, full insulation, fully sealed, maintenance-free, which ensures that it can be used in the harsh environment for 20 years.

Features

The transformer body and the oil tank are closely connected with a fixed device. All the high voltage and low voltage line are soft-connected. The connection between tap wire and on-load tap-changer is cold-welded and fastened with bolts. All connections (including connections between coil and backup fuse, plug-in fuse, load switch, etc) are cold welded. The fastening part is equipped with self-locking anti-loose device to keep the transformer withstanding vibrations and bumps during the long-distance transportation. After delivering to the installation site, there is no need to do the conventional hanging core inspection.

The transformer has a whole-sealed structure, and there is no oil conservator.

The enclosure is specially treated to make it has a good anti-corrosion ability, and also gives it good performances in preventing wind erosion and salty fog.