40.5kV high current embedded poles is an integral component that embeds the vacuum interrupter and the related conductive parts of the circuit breaker into the solidified insulating material.

It is mostly cast and solidified with insulating materials such as epoxy resin to form a solid whole. It is mainly used in power transmission and distribution control systems.

Product Specifications

Specification Sheet

No.

Name

Unit

Data

Voltage Parameters

1	Rated frequency(fr)	Hz	50/60
2	Rated Voltage(Ur)	kV	40.5
3	Rated short-time (1 min) power frequency withstand voltage (Ud)	kV	95
4	Rated lighting impulse withstand voltage(UP)	kV	185

Current Parameters

1	Rated current	A	3150/4000
2	Rated short-circuit breaking current(Isc)	kA	31.5/40
3	Operating cycles at rated short-circuit breaking current	Times	30
4	Rated short-time withstand current(Ik)	kA	31.5/40
5	Rated short circuit duration(tk)	s	4
6	Rated withstand current (peak) (Ip)	kA	80/100
7	Rated short-circuit making current(IMC)	kA	80/100
8	component of rated short-circuit breaking current	%	40
9	Standard Operating sequence	O-0.3s-CO-180s-CO

Mechanical Parameters

1	Moving part mass	kg	3.2~3.5
2	Contact closing force	N	200±50~230±100
3	Rated contact pressure	N	3400±200~4700±100

Requirements for Switch Mechanical Characteristics

1	Clearance between open contacts	mm	19±1
2	Average opening speed(Contact closing position ~ 75% open distance)	m/s	1.7±0.3
3	Average closing speed (30% opening distance ~ contact closing position)	m/s	0.8±0.2
4	Contact closing bounce time	ms	≤2
5	Contact closing and opening are out of phase	ms	≤2
6	Opening contact rebound amplitude	mm	≤2

Lifespan

1	Storage period	years	20
2	Mechanical life	Times	10000
3	Allowable wearing thickness of contacts	mm	3

Product Advantages

Improve electrical insulation performance

It has good insulation properties. Through precise assembly, it can provide reliable insulation protection for internal conductors or electrical components, effectively prevent electrical faults such as leakage and short circuit, and greatly improve the safety and stability of the electrical system.

Enhance mechanical protection

It is sturdy and can provide good mechanical protection for internal components to resist external impact, extrusion and vibration; prevent the internal components from mechanical damage and causing electrical performance degradation or failure, and extend the service life of the equipment.

Easy to install and maintain

It usually adopts standardized design, and the assembly process is relatively simple and fast, which can improve production efficiency; when it is necessary to maintain or overhaul the internal electrical components, it is convenient to operate by simply disassembling the insulation cylinder, without large-scale disassembly of the entire electrical system.

Optimize space layout

It can be customized according to actual needs to adapt to different space layout requirements; it can install multiple electrical components in one insulation cylinder to achieve efficient use of space and make the electrical system more compact and tidy.

Adapt to harsh environment

With good corrosion resistance, high temperature resistance and low temperature resistance, it can work stably under various harsh environmental conditions; it provides strong guarantee for the reliable operation of electrical equipment in harsh environments

‌Product Applications

40.5kV high current embedded poles is Widely used in 40.5kV power distribution systems such as metallurgy, mining, petroleum, chemical industry, railways, broadcasting, communications, industrial high-frequency heating, etc.

We can provide all kinds of vacuum circuit breaker parts ,such as embedded poles,insulators,chssises and vacuum interrupters ,if you need more informain ,pls contact us at any time .

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Product Outline Drawing

405kV high current embedded poles price

Why Choose Us

product-717-476

Our Mission and Vision

Since our founding, we have been driven by a mission to revolutionize power transmission and distribution systems. Our vision is to expand our international market share and establish our VTZ brand as a symbol of quality and innovation in the electrical industry. We are committed to becoming a global leader, known for our dedication to advancing technology, ensuring quality, and prioritizing customer satisfaction.

After-sales and Service

We are committed to providing exceptional after-sales support to our global customers. Our services include worldwide technical support and warranty coverage, such as online remote technical support, video training, and on-site installation guidance. During the warranty period, we respond quickly to equipment defaults, and provide repair or replacement services, with the option to extend warranties as needed. To ensure effective communication, we also offer multilingual support and provide a comprehensive feedback mechanism that allows us to track customer satisfaction and continuously improve our service quality.

Excellence in research and development

Innovation is at the core of our business. We have independently developed the VTZ Series Vacuum Circuit Breakers and continue to invest in research and development to meet the evolving needs of the electrical industry. Our R&D team consists of senior technical experts with decades of experience in the design and manufacture of high and low voltage electrical equipment. Their expertise, combined with our advanced facilities, allows us to stay ahead of industry trends and continually optimize our product offerings.

Advanced manufacturing and production

We operate one of the most advanced and standardized assembly line manufacturing facilities in the industry, equipped with the latest technology, enabling us to produce a wide range of high quality electrical products with precision and efficiency. Wecomply with GB 1984-2024 and GB/T11022-2020 standards to ensure the highest quality. Our commitment to excellence is reflected in the durability, reliability, and compatibility of our products.

Adapting to industry trends

Guided by our strategic development plan, we continuously adapt our products to align with the latest trends in smart grids, power system automation, and high altitude environments. Our leading high-current, high-voltage, and long-life products are designed to meet the rigorous demands of today's power systems, providing our customers with reliable, maintenance-free solutions that stand the test of time.

Honors And Certifications

product-620-877 product-880-1274