- Overview
- Product Description
- Product Parameters
- Detailed Photos
- Packaging & Shipping
- Company Profile
- FAQ
- Certificates
- Business Partners
Basic Info.
Packaging & Delivery
Product Description
Qinghao pad mounted substation includes active part of transformer, HV load switches, fuses and other protection devices all immersed in insulating liquid that can reduce the size,which also equipped with a full range of operational monitoring instruments, such as pressure gauge, oil level gauge, oil temperature gauge, etc. and combining with the low voltage switchgear combination as a set of booster equipment.
Our pad mounted substation transformers feature a tamper resistant construction with no externally accessible bolts, hinges, screws or fasteners, thus providing a safe, self-contained unit which cannot be accessed by unauthorized personnel. Unsightly fences or other forms of protective devices are not necessary. Completely factory assembled, the units are shipped in one piece.
We offer a variety of standard designs and configurations, and also can customize for special designs and options.
Main Characteristics
1. Full insulation, fully sealed structure to guarantee the personal safety.
2. HV side adopts double fuse protection, in which the plug type fuse is the unika fuse(temperature, current), the backup fuse is the current limit fuse reducing the operating costs.
3. HV incoming line adopts cable connector structure, all insulated, safe and reliable easy to operate.
4. The transformer can be used in Ring Main Unit and terminal system with quite convenient transformation, improving the reliability of power supply.
5. The structures for transformer are three-phase three-limb or three-phase five-limb. The core uses step-lap technologies which lowers the noise and loss, and improves the short circuit withstand ability and overload ability.
6. Use special technology of vacuum drying and vacuum oil filling which used in 35kV transformer and be extended to 10kV transformers. It offers a strong guarantee for quality improvement.
7. The enclosure adopts antiseptic design and special spray painting as per the service condition. The enclosure is equipped with ""three-anti"" functions: anti-condensation, anti-salt fog and anti-mildew, which can meet the anti-corrosive requirement in high temperature and high humidity condition.
Advantages
1. Compact structure, beautiful appearance, small size.
2. Flexible, safe.
3. Easy to operate and free maintenance.
Applications
1. Urban power network residential area.
2. High-rise building.
3. Industrial park, airport, station, school, especially for urban grid transformation.
Service Environment
1. Ambient temperature: Maximum +40ºC, Minimum -25ºC
2. Altitude: less than 1000 meters.
3. Seismic level: less than 3m/s2 at horizontal direction and less than 1.5m/s2 at vertical direction.
4. Installation environment: No obvious and heavy pollution, no explosive and corrosive gas and dust, with good air ventilation and no severe vibration and shock.
(Note: If the application environment is different from the above standard conditions, please contact for customized designs.)
Reliable, durable, compact size, easy installation and maintenance.
Common power ratings
30, 50, 80,100,125,160, 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600kVA.
Below technical parameters for reference only. Please consult for details or customized products.
| High Voltage Compartment | Item | Unit | Parameter | ||
| Rated frequency | Hz | 50/60 Hz | |||
| Rated voltage | KV | 3.3KV, 6.0KV, 6.6KV | 10KV, 11KV, 13.8KV, 15KV, 20KV, 22KV | 30KV, 33KV, 35KV, 36KV, 38.5KV | |
| Max service voltage | kV | 7.2 KV | 12KV, 24KV | 40.5KV | |
| Rated current | A | 400, 630, 1000, 1250,1600, 2000 etc | |||
| Transfer current | A | 1200-3150A | |||
| Transfomer Compartment | Rated voltage | KV | 3.3KV, 6.0KV, 6.6KV | 10KV, 11KV, 13.8KV, 15KV, 20KV, 22KV | 30KV, 33KV, 35KV, 36KV, 38.5KV |
| Rated power capacity | KVA | 30kVA-1600kVA | |||
| Tapping range | % | ±2*2.5%, ±5% | |||
| Vector group | Yyn0, Dyn11 | ||||
| Short-circuit Impedance | % | 4.0, 4.2, 4.5, 6,8 | |||
| Low Voltage Compartment | Rated voltage | V | 220, 380, 400, 415, 433, 440, 660, 690, 800 | ||
| Main circuit rated current | A | 50-4000 | |||
| Branch current | A | 5-800 | |||
Type Selection Instructions
1. Substation voltages range from 11kV to 36 kV.
2. S11/13/18/20/22 series oil-immersed transformer and amorphous alloy oil transformer can be selected as transformer parts according to the customer's requirements. (Details please refer to transformer parameters accordingly. )
3. Ring Main Unit or terminal type can be selected as per customer's requirements.
4. Metal enclosure and stainless-steel enclosure could be customized.
5. LV circuit in above list is the general configuration; it can be changed as per customer's requirements.
6. Equipment capacitance compensation can be divided into intelligent capacitance and common capacitor it's capacity can be changed as per customer's requirements.
7. Equipment arrangement usually divided into coupled "F" type and "O"+ reversed "E" type. Special plan can be optimized as per customer's requirement.
Confirmation before ordering
1. Type of transformer substation (Oil or Dry type).
2. Category and nominal capacity of transformer substation.
3. Wiring proposal for high voltage chamber and low voltage chamber, electrical component type selection, parameter or electrical schematic diagram.
4. Color of housing. We will decide if customer make no requirement.
5. Indicate special requirements via email or call if needed.
Qinghao Electric Co., Ltd. (Hereinafter referred to as Qinghao Electric) is a reliable and specialized power transmission and distribution equipment manufacturer located in Wenzhou City, Zhejiang Province. We are focusing on transformer, substation, switchgear and other power related products' R&D and manufacture from 2010. Our products mainly include oil immersed transformer, dry-type transformer, amorphous alloy transformer, prefabricated substation (box type transformer), pad mounted substation (combined transformer), solar photovoltaic & wind power step-up substation, high and low voltage switchgear.
With more than 20years develop and production efforts, our products are sold to many countries all over the world. Now our products' technical performance has reached the advanced level in power industry, and our company has become a leading professional power distribution manufacturer not only in China but also in the world. With the concept of "world-class transformers, smart solutions", Qinghao Electric is devoting to provide high-quality power for customers.
Let us cooperate with a brighter future!
Q: Are you a Manufacturer, factory or Trading company?
A: Yes, we are engaging over 20years in the research and development, production and operation of distribution equipment (transformer, switchgear, substation, etc.).
Q: What's your warranty terms?
A: We offer 24 months warranty time.
Q: How long is the production time?
A: 25 to 45 days or depending on order requirements.
Q: What's your payment terms?
A: T/T, L/C or negotiation.
Q: How do you conduct quality control in your factory?
A: Qinghao transformers are manufactured in accordance with international standards and customer requirements with IEC, SGS, Intertek, CCC, CE and other international certifications. All transformers are 100% conducting routine test, type test and special test in accordance with IEC Standards and customer requests at the end of the manufacturing process to ensure every product is qualified.
Q: Do you have the products in stock?
A: Normally no, but we have raw material stock to shorten production lead time.
Q: How can I trust you?
A: Qinghao Electric has more than 20years manufacturing experience, and cooperated with many customers all over the world. We have many patent certificates, CE certificate, KEMA certificate, ISO9001, ISO14000 certificate. We are the audited supplier of TUV, Alibaba and Made-In-China.
Q: What should provide to make custom transformer?
A: Technical drawing and specification documents are the best, or you can list key parameters for designing.
Q: Could I have your catalog and price list?
A: Price may change based on material market. Welcome to contact for accurate price via Made-in-China or company official website.
