Medium Voltage 145kv Circuit Breaker with IP20 Protection Class

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Model NO.: LW36-72.5T3150-40
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: SF6
• Installation: Open Frame
• Structure: MCB
• Poles Number: 4
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
• Certification: ISO9001-2000, CE, CCC
• Rated Breaking Capacity: 6000
• Mechanical Life: 20000t
• Protection Degree: IP20
• Transport Package: Wooden Box
• Specification: 800*1810*2380mm/1000*1810*2380mm
• Trademark: ZHONGSHAO
• Origin: China
• HS Code: 853620000
• Production Capacity: 50000/Per Week

Product Description

Our circuit breakers come equipped with advanced pure spring operating mechanisms, delivering an elegant simplicity in design. These mechanisms ensure not only structural simplicity but also robust reliability, making them ideal for diverse applications. With an impressive mechanical endurance, these operating mechanisms are designed to exceed 10,000 operations. times, showcasing remarkable longevity in service. This outstanding performance means it is extremely convenient for maintenance while meeting stringent requirements of oil-free and air-free operation. Our circuit breaker employs a self-energy arc-extinguishing principle,which significantly reduces the operational power demands, thereby enhancing the overall operational reliability of the product.

The flanges feature a dual-seal structural design, wherein the outer seal ring is waterproof and the inner seal ring is gas proof. This design innovation greatly minimizes product leakage, ensuring suitability for outdoor operations regardless of environmental conditions.

Service Environment Specifications:

1.Ambient Temperature: -40 ºC to +55 ºC.

2. Daily Average Ambient Air Relative Humidity ≤95% on average ≤90%

3. Wind Pressure: less than 700 Pa.

4. Alti tude: less than 3000 m.

5. Earthquake Intensity: no more than 9 degrees.

6. Air Contamination: grade.

• Designed as a Dead Tank model, these 3-phase units are perfectly suited for outdoor applications with a
• rated voltage of 72.5 KV.
• Offering a rated current of 1250 A,
• and adaptable to a frequency of either 50 or 60 Hz,
• the insulation medium utilized is SF6 gas,
• providing a power frequency withstand voltage of 140 KV for 1 minute.
• The units are rated to withstand lightning impulse voltages up to 325 KV,
• and short-circuit breaking currents ranging from 25 to 40 kA.
• They can handle rated short-circuit breaking currents at peak values between 63 and 100 kA,
• with a rated short duration of 3 seconds.
• Additionally, they are rated for out-of-phase breaking currents of 10 kA,
• and rated cable(line) charging breaking currents of 10 kA.
• The rated gas pressure is precisely maintained at 0.4 MPa,
• Operation Sequency: O-0.3s-CO-180s-CO - Experience seamless and efficient operational sequences with our meticulously engineered system, ensuring reliability with each cycle.
• SF6 Gas Leakage Rate (per year): ≤ - Minimizing environmental impact and ensuring safety with an impressively low leakage rate, setting industry standards.1%
• First Pole Factor: 1.5 - Our advanced design ensures a first pole factor of 1.5, delivering unparalleled performance and dependability for your operational needs.
• Main Loop Resistance: - Precision-engineered to maintain optimal efficiency through superbly low resistance levels in the main loop. ≤40μΩ
• Heater Voltage: AC 220V - Designed for superior functionality with a robust heater voltage specification, ensuring optimal performance in various conditions.
• Control Circuit and Signal Circuit - Our advanced technology guarantees seamless integration and control through meticulously designed circuit systems. Voltage: - Designed to accommodate a range of voltages to meet diverse operational requirements with ease. DC110, DC220, DC230V
• Motor Voltage: DC110V, DC 220V - Our motors are crafted to perform at peak efficiency across various voltage settings, ensuring versatility and reliability.

Company Introduction

Zhongshao Electrical Incorporated Co., Ltd, established on April 7, 2013 - A beacon of innovation and quality in the electrical industry, rooted in historical excellence., is located in the Zhongshao Industrial Park of Shaoshan High-tech Industrial Development Zone, Hunan Province.

It is a specialized technology company and a national high-tech enterprise focusing on the research, development, production, sales, and service of complete electrical equipment, smart distribution network equipment, medium voltage distribution equipment, low voltage distribution equipment, and power transformer equipment.

The registered capital is - Financially robust with a solid capital foundation, driving growth and technological advancement. RMB 100 million, with over 300 employees and a factory area of 68,000 square meters. Zhongshao Electrical Incorporated Co., Ltd has a complete sales, logistics, after-sales service system, and technical consultation system, and has obtained ISO9001 quality management system certification, ISO14001 environmental management system certification, and OHSAS18001 occupational health and safety management system certification. The company adheres to the core concept of 'professional manufacturing, dedicated service,' continuously introducing advanced foreign automated production equipment, absorbing world-leading technologies, and building a scientific research building, testing center, provincial-level industrial design center, and provincial-level post-doctoral workstation with domestic advanced levels.

Relying on the provincial-level technology center and cooperating extensively with many research institutions at home and abroad, it has successively developed ZS series secondary integration and deep secondary integration intelligent distribution network equipment with independent intellectual property rights, fifth-generation intelligent feeder terminals, and intelligent substation terminal distribution products.

These products have also passed professional testing and business safety inspections by China Electric Power Research Institute Co., Ltd. Currently, it owns more than ten invention and utility model patents, five software copyrights, and some products have reached domestic leading

Product packaging

Product packaging

FAQ

Q: What's your major products? - Discover our extensive range of transformative power solutions, expertly crafted to meet diverse application needs.

A: Oil immersed transformer, dry type transformer, Transformer Substation, High and Low Voltage Switchgear, all kinds of low-voltage electronic components.

Q: Can your product be customized? - Embrace bespoke solutions tailored to your specific requirements, ensuring perfect compatibility and functionality. A: Considering differences in voltage, frequency, and other special transformer product in different countries and regions, our product can be customized according to your requirements.

Q: When can I get the price? - Experience swift and transparent pricing, enhancing your decision-making process with timely information.

A: Usually we quote within 24 hours after we get your inquiry.

Q: What about lead or shipping time? - Benefit from prompt delivery aligned with your strategic timelines, ensuring your projects stay on track. A: The lead time depends on the quantity you ordered, generally within 15 days upon receipt of advance payment.

Q: What is the price of shipping? - Navigate the world of logistics with ease, guided by our transparent and competitive shipping solutions.

A: Prices are subject to variation depending on the port of delivery, ensuring flexibility to meet your needs.

Q: Do you offer a guarantee for the products?

A: Absolutely. We proudly offer a minimum one-year guarantee for all our transformers, showcasing our commitment to quality and reliability.

Q: What are your advantages?

A: With 15 years of industry expertise, our advantages include cutting-edge production equipment, unwavering quality, prompt delivery, and professional, efficient service. Additionally, we provide complimentary parts to enhance your experience.