The circuit breakers are all equipped with pure spring operating mechanisms which makes structure simple and highly reliable. The mechanical endurance for the operating mechanism is over 10000 times , and it is convenient for maintenance and meets mechanism's requirements for oil free and air free. It uses self-energy arc-extinguishing principle, and reduces operation power of the mechanism and enhance operational reliability of product.
The flanges adopt dual-seal structural design, the outer seal ring is water-proof and inner seal ring is gas proof. Therefore, it can reduce the leakage of the product greatly and makes the product more suitable for outdoor operation.
Service Environment:
1.Ambient temperature: -40 ºC to +55 ºC.
2.Daily average ambient air relative humidity ≤95%, on average ≤90%
3. Wind pressure: less than 700pa.
4.Alti tude: less than 3000m.
5. Earthquake intensity: not more than 9 degrees.
6. Air Contamination: grade.
- Dead Tank type , 3 phase , outdoor usage
- rated voltage : 72.5 KV
- Rated current : 1250 A
- Rated frequency : 50 or 60 hz
- Insulation medium : SF6 gas
- 1 min. power frequency withstand voltage : 140KV
- Rated lightning impulse withstand voltage : 325KV
- Rated short circuit breaking current : 25 ~ 40 kA
- Rated short circuit breaking current(Peak value) : 63 ~ 100 kA
- rated short duration : 3S
- Rated out-of phase breaking current : 10kA
- Rated cable(line) charging breaking current : 10kA
- Rated gas pressure: 0.4 Mpa
- operation sequency : O-0.3s-CO-180s-CO
- SF6 gas leakage rate (per year) : ≤1%
- First pole factor: 1.5
- main loop resistance : ≤40μΩ
- Heater voltage : AC 220V
- Control circuit and signal circuit voltage : DC110, DC220,DC230v
- Motor voltage: DC110V, DC 220V
Company Introduction
Zhongshao Electrical Incorperated Co., Ltd, established on April 7, 2013, is strategically located in the reputable Zhongshao Industrial Park within the Shaoshan High-tech Industrial Development Zone, Hunan Province.
As a dedicated technology powerhouse and a national high-tech enterprise, we specialize in the cutting-edge research, development, production, sales, and service of comprehensive electrical equipment, smart distribution network equipment, medium and low voltage distribution equipment, alongside power transformer solutions.
The company's robust registered capital stands at RMB 100 million, and we proudly employ over 300 dedicated professionals in our expansive factory spanning 68,000 square meters. Zhongshao Electrical Incorperated Co., Ltd boasts a thoroughly integrated sales, logistics, after-sales service, and technical consultation infrastructure, having earned ISO9001 quality management system certification, ISO14001 environmental management system certification, and OHSAS18001 occupational health and safety management system certification. Our company embraces the core philosophy of "professional manufacturing, dedicated service," constantly introducing cutting-edge foreign automated production equipment, assimilating world-class technologies, and erecting a state-of-the-art scientific research building, testing center, provincial-level industrial design center, and a provincial post-doctoral workstation of domestic renown.
Leveraging our provincial-level technology center and engaging in extensive collaborations with numerous prestigious research institutions both domestically and internationally, we have innovated and developed the ZS series secondary integration and deep secondary integration intelligent distribution network equipment, boasting independent intellectual property rights, as well as the fifth-generation intelligent feeder terminals and smart substation terminal distribution products.
These innovations have successfully passed rigorous professional testing and business safety evaluations by China Electric Power Research Institute Co., Ltd. Today, we hold over ten invention and utility model patents, five software copyrights, with several products achieving domestic leading positions.
Product packaging
Product packaging
FAQ
Q:what's your major products?
A: We specialize in oil-immersed transformers, dry type transformers, transformer substations, high and low voltage switchgear, and an extensive array of low-voltage electronic components.
Q: Can your product be customized? A: Indeed, recognizing the diversity in voltage, frequency, and other specific transformer requisites across different countries and regions, our products can be meticulously customized to align with your precise specifications.
Q: When can I get the price?
A: We typically provide a quote within 24 hours post receipt of your inquiry.
Q: What about lead or shipping time? A: The lead time is contingent upon the quantity of your order, generally finalized within 15 days following the receipt of an advance payment.
Q: What is the price of shipping?
A: Our prices are dynamic and can vary depending on the specific port of delivery. Please inquire for detailed pricing tailored to your location.
Q: Do you offer guarantee for the products?
A: Absolutely! We proudly offer a minimum of one-year guarantee on all of our high-quality transformers to ensure customer satisfaction and confidence.
Q: Your Advantage?
A: With an impressive 15 years of experience, we boast advanced production equipment and maintain stable product quality. Our efficient processes enable fast delivery, while our team is dedicated to providing professional, courteous, and prompt service. As an added benefit, we also offer some complimentary parts to enhance your experience.
){kind=link}