The circuit breakers are masterfully equipped with advanced pure spring operating mechanisms, ensuring a streamlined and uncomplicated structure. mechanisms which makes structure simple and highly reliable. Impressively, the mechanical endurance of these mechanisms exceeds an incredible 10,000 operations, mechanism is over 10000 times , and it is convenient for maintenance, complying effortlessly with the requirements for oil-free and air-free mechanisms. Utilizing a self-energy arc-extinguishing principle, it significantly reduces the operational power required, power of the mechanism and enhance operational reliability of product.
The flanges are designed with an innovative dual-seal structure; the outer seal ring offers robust waterproof protection, while the inner seal ring ensures gas proof. This ingenious design substantially mitigates leakage, rendering the product exceptionally adept for outdoor operation.
Service Environment:
1.Ambient temperature: -40 ºC to +55 ºC.
2. Daily average ambient air relative humidity ≤95%, averaging ≤90%
3. Wind pressure:under 700 Pa. less than 700pa.
4. Alti tude: less than 3000m.
5. Earthquake intensity: not to exceed 9 degrees.
6. Air Contamination: grade.
- Dead Tank type, three-phase, perfectly suited for outdoor conditions,
- rated voltage: 72.5 kV,
- Rated current: 1250 A,
- Rated frequency: 50 or 60 Hz.
- Insulation medium: Innovative SF6 gas,
- 1-minute power frequency withstands voltage of 140 kV,
- Rated lightning impulse withstand voltage: a robust 325 kV,
- Rated short circuit breaking current ranges from 25 to 40 kA,
- Peaking at a rated short circuit breaking current of 63 to 100 kA,
- Rated short duration: 3 seconds,
- Rated out-of-phase breaking current: 10 kA,
- Rated cable (line) charging breaking current: 10 kA,
- Rated gas pressure: 0.4 MPa,
- operation sequence: O-0.3s-CO-180s-CO, engineered for seamless functionality.
- The SF6 gas leakage rate per annum is impressively low, measured at:1%, ensuring high efficiency and reliability.
- Featuring a robust first pole factor of: 1.5 for enhanced performance.
- Main loop resistance is exceptionally minimal, valued at: ≤40μΩ, promising optimal electrical flow.
- Heater voltage specifications stand at AC 220V, ensuring operational stability.
- Control circuit and signal circuit are meticulously designed, with a voltage of: DC110, DC220, DC230v, offering versatile power options.
- Motor voltage is adaptable at DC110V and DC220V, catering to diverse applications.
Company Introduction
Zhongshao Electrical Incorporated Co., Ltd was founded on April 7, 2013,nestled in the Zhongshao Industrial Park, Shaoshan High-tech Industrial Development Zone, Hunan Province.
As a beacon of innovation, this national high-tech enterprise specializes in complete electrical solutions, pioneering smart distribution networks, and high-quality transformers.
Boasting a registered capital of RMB 100 million, the company employs over 300 dedicated professionals and spans an impressive factory area of 68,000 square meters.Zhongshao Electrical offers a comprehensive service ecosystem, backed by certifications in ISO9001 for quality management, ISO14001 for environmental stewardship, and the rigorous OHSAS18001 for occupational health and safety, affirming its commitment to excellence. Driven by the philosophy 'professional manufacturing, dedicated service,' the company continuously integrates cutting-edge technology, nurturing a modern research hub, testing center, and provincial-designated facilities.
With a dynamic provincial-level technology center, they collaborate globally to develop pioneering ZS series integration systems and fifth-generation intelligent products, setting industry benchmarks.
Each product undergoes rigorous evaluation by China Electric Power Research Institute Co., Ltd, and the company proudly holds numerous patents, with select offerings leading the domestic market.
Product packaging
Product packaging
FAQ
Q: What are your major products?
A: Our core offerings include oil-immersed transformers, dry-type transformers, transformer substations, high and low voltage switchgear, and a variety of low-voltage electronic components.
Q: Can your product be customized? A: Absolutely, we understand the need for customization across different regions, including voltage and frequency variations. Our products can be tailored to meet diverse specifications.
Q: When can I get the price?
A: We prioritize swift responses, typically providing quotes within 24 hours of receiving inquiries.
Q: What about lead or shipping time? A: Lead times are dependent on order volume but generally fall within a 15-day period post-advance payment.
Q: What is the price of shipping?
A: Shipping costs vary based on the delivery port location.
Q: Do you offer guarantee for the products?
A: Absolutely! We proudly extend a robust guarantee period of at least one year on every single transformer we produce. Our commitment to quality ensures that you receive products that are designed to last.
Q: What makes your company stand out?
A: With an impressive 15 years of industry expertise, we are equipped with state-of-the-art production facilities that consistently deliver outstanding quality. Our hallmark is rapid delivery and a professional, responsive, and exceptional customer service experience. Additionally, we are pleased to offer complimentary spare parts to further enhance your satisfaction and convenience.
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