Basic Info.
Application
Power, Electronic, Instrument, Lighting, Rectifier, Audio, Transformer
Core
Shell-type Transformer
Cooling Method
Oil-immersed Type Transformer
Certification
ISO9001-2000, ISO9001, CCC
Usage
Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer
Frequency Characteristics
50-60Hz
Rated H. V.
11~220kv or Customized
Rated L. V.
11~110kv or Customized
Impedance Voltage
Customized
Transport Package
Wooden Case/Pallet
Product Description
Hanxing induction melting furnace has excellent performance and excellent durability. We will customize the right product according to customers' requirements. No matter the size of your foundry or melting workshop and the needs of the melting workshop, we can meet the above requirements.
We offer a wide range of small induction furnaces. In addition, we can offer the foundry a choice of small to medium sized applications. Finally, we also match the heavy duty steel shell furnace for the largest foundry applications to meet the precise requirements of our customers.
we are factory.
We have a professional technical team.
We will help our customers get the products they want.
Parameter:33kV and below 33kV dry-type transformer
33kV and below 33kV oil-immersed distribution transformer
220kV and below 220kV oil-immersed power transformer
Pre-fabricated substation/Mini-sub/Compact Substation/Substation Transformer
Reacors.
Customized design and production are available.
The followings are detailed introductions about each product line:
1, Dry-type power transformer
1.1 35kV and below 35kV cast resin dry-type power transformer
1.2 35kV and below 35kV OVDT (Open-ventilated) dry-type power transformer
1.3 35kV and below 35kV amorphous alloy dry-type transformer
1.4 Class 1E dry-type transformer for nuclear power plant
1.5 Dual-split dry-type transformer for solar power application (dual LV input)
1.6 Customized special purpose dry-type transformerIf you are interested, please contact me
2, Oil-immersed Distribution transformer
2.1 35kV andn below 35kV oil-immersed distribtion transformer
2.2 Amorphous alloy oil-immersed distribution transformer
2.3 Hemetically sealed oil-immersed distribution transformer
2.4 Free-breathing oil-immersed distribtuion transformer with conservator and de-hydrating breather.
3, Oil-immersed Power Transformer
3.1 22kV-class oil-immersed power transformer
3.2 33kV-class oil-immersed power transformer
3.3 66kV-class oil-immersed power transformer
3.4 88kV-class oil-immersed power transformer
3.5 110kV-class oil-immersed power transformer
3.6 145kV-class oil-immersed power transformer
3.6 220kV-class oil-immersed power transformer
4, Substation transformer
4.1 Pad-mounted transformer
4.2 Substation transformer
4.3 Pre-fabricated transformer
4.4 Package transformer
4.5 Substation transformer for wind farm application
4.6 Substation transformer for solar power application
5, Reactor
5.1 Dry-type earthing transformer
5.2 Oil-immersed earthing transformer
5.3 Arc-suppression sub-assembly
5.4 Neutral earthing sub-assembly| Specifications: |
| Rated H.V.: | Up to 220kV (Customer Specified) |
| Rated M.V.: | Customized |
| Rated L.V.: | Customized |
| Vector Group | Dyn11/YNd11 or customized |
| Capacity: | Up to 200MVA |
| No-load Loss: | 12~67.7kW or customized |
| Load Loss | 47~270kW or customized |
| No-load Current: | 0.6~0.30% or customized |
| Tap-changing | On-load Tap-changing or Off-load Tap-changing |
| Cooling Method: | ONAN/ONAF |
| Reference Standards | IEC60076 |
| Notes: The above specifications may be customized according to customer's requirement. |
Features & Advantages |
| 1. Low partial discharge: the apparent discharge quantity is usually less than 100pC; |
| 2. Low noise: Product of 63MVA or below 63MVA has a noise level less than 60dB; |
| 3. Low loss: no-load loss is reduced by 20 percent compared with that specified in national standards; |
| 4. High anti-short capability: the SFZ10-40000/110 transformer has passed the short-circuit test carried out by China National Transformer Quality Supervision Testing Center. |
Electromagnetism calculation: |
The insulation strength is comprehensively calculated with reference to the formula of "impulse voltage gradient+ actuation duration". Parsing imaging method is used for precisely calculating winding magnetic field and ampere-turn balance between windings, thus to minimize the mechanical strength.
Electric field wave process and field intensity are calculated, thus to ensure both the principal and longitudinal insulation having sufficient strength under impulse voltage. Advanced auxiliary computer programs are used to simulate and calculate the temperature rise on core and windings, with precision reaching each core step and each winding disk. |
Winding: |
The interleaved and continuous winding structure is adopted for HV windings, thus to improve the electric distribution and effectively improve the anti-lightning impulse capability. Inner and outer support strip structure is adopted. The support strips and pads are all rounded to improve insulation reliability. Oil-directing structure is adopted in the winding, thus to reduce the hotspot temperature and prolong insulation life.
Both the H.V and M.V. windings are usually provided with separate voltage regulating windings, so the ampere-turn of all the windings are completely balanced. These can effectively eliminate the axial electrodynamics force during external short circuit and improve the dynamic stability under external short circuit. |
Tank: |
| Bell-type tank is adopted for the transformer (for transformer of below-20MVA, barrel-type tank is used). The tank wall is made into a corrugated shape with special machining equipment. This will reduce the welding work and the mechanical strength will be much improved. The tank rims are sealed with oil-resistant rubber pad and there is a position-limit device on bottom part of the tank. |
Core: |
| High-quality cold-rolled grain-oriented silicon steel sheets are used for core manufacturing. 45-degree mitring and steps-overlapping structure is adopted. No punching holes in the core. The silicon steel sheet is cut with the most advanced cutting machine, with the cut edging burrs less than 0.02mm. This greatly reduces transformer's no-load loss. |
Cooling Devices and Other Accessories: |
The main cooling methods for transformers are ONAN (natural air cooling) and ONAF (air forced cooling). Transformers are designed to operate at full load when fans are in operation, and at 70% of the full load when fans are shut down. Panel-type radiators are used. A more compact size can be obtained for transformers equipped with such radiators .The fans generally blow horizontally, with lower speed and lower noise. The on/off operations of the fans are controlled according to changes in oil temperature and load.
Conservator with rubber bladder is used for the transformer, within which are the oil-resistant and sealed bladder for isolating the oil from the atmosphere. To further improve the reliability, the air cell in the bladder are connected with exterior atmosphere through silica gel breather. |
1, Low power consumption
Large current system made of pure copper as conductive medium, the whole circuit with less resistance. Electrode arm shaped as copper-clad box type, resistance and heat can be reduced efficiently. Reasonable arrange of all conductive systems to minimize the resistance of every circuit.
2, Safety & Stability
Full set of hydraulic driving system equipped with accumulator to ensure stability of facilities in the operation process. Whist, equipments can go on the motion when there any emergency accidents happen.
3, High Power Factor
Our power factory could reach over 98%, which could greatly reduce the capacitor box quantities. However we still equip enough capacitor box quantities, which mean your furnace is much much more efficient.
4. High flexibility & Maximum simplicity of operation
HMI used in electrical automation control, interface simulates the real form of furnace, which make the operation more convenient. Mixing feedstock, charging feedstock, melting, tapping all the commands can be implemented by computer.
5. More Durable
We get 6 thyristors on the left, 8 on the right, so even if one thyristor is damaged, our furnace still could be continued use. But many other factories only get only 4 on the right, the whole equipment cannot be used anymore when one thyristor is damaged.
We are very professional.
After-sales service:
a. Cooperate with guidance to check the buyer installation work;
b. Internal and electrical wiring connections between equipment;
c. Site commissioning;, according to the actual equipment adjust to the best state;
d. Direct buyer operating personnel to the correct use of operating equipment;
e. Guidance on site security considerations;
f. To guide the buyer maintenance personnel troubleshooting methods;
g. Provide equipment specification;
Address:
Cicheng Industrial Zone, Jiangbei District, Ningbo, Zhejiang, China
Business Type:
Manufacturer/Factory
Business Range:
Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001
Company Introduction:
Ningbo Hanxing Electronic Equipment Co., Ltd. is a leading domestic industrial electric furnace manufacturing R&D enterprise, high-tech technology enterprise and member of China Foundry Association. The company is located in Ningbo on the coast of the East China Sea. It is close to Beilun Deepwater Port and Ningbo Airport and Hangzhou Bay Bridge. The traffic and location conditions are very advantageous. The energy saving rate of Ningbo Haoxing Electronic Equipment Co., Ltd. Has reached the international advanced level. The products have passed the ISO9001: 2000 quality system certification and the EU CE certification certification body certification.
