ZN39-40.5 Vacuum Circuit Breaker VCB

ZN39-40.5C/T(D) series vacuum circuit breaker is an outdoor high-voltage distribution device with three-phase AC 50Hz and a rated voltage of 40.5KV, which matches with JYN1-35/GBC-35 type switch-gear. It is available for controlling and protecting power plants, substations, and other transmission and distribution systems, and is especially suitable for frequent operation.

The ZN39-40.5C/D vacuum circuit breaker is a trolley type with a reasonable structure, easy maintenance, safety, and reliability. It's composed of a vacuum interrupter chamber, operating mechanism, insulator, rotating parts, frame, and so on. It takes the front and rear arrangement for the operating mechanism and

the vacuum interrupter chamber, installing upward for the dynamic conductive rod of the vacuum interrupter chamber and connecting with the operating mechanism through the abductor's arm and insulated rod to complete the breaking and closing. It has a set of interlocking devices, which conveniently uses with the switch-gear. The interlocking device locks the vacuum circuit breaker at the closed position to prevent it from tripping due to the wrong pull of the trolley in the closed state. In an emergency, please operate the CS manual mechanism to keep the locking pin contacting latches to make the circuit breaker trips.

It takes TD8113A ceramic vacuum interrupter produced by us, the contacts use a new type of total magnetic field mechanism as the movable and static contacts break with electricity under the action of the operating mechanism, and the contact gap will burn and extinguish the arc during the current crosses zero, due to the special structure of the contacts, whose gap will generate appropriate longitudinal magnetic field during the burning period, this magnetic field can make the arc evenly distributed on the contact surface. Maintain low arc voltage, reduce arc energy and electro corrosion rate, and make the vacuum interrupter with high post-arc medium recovery speed, small arc energy, and electro corrosion rate to improve VCB's breaking capacity and electrical life.

ZN39-40.5 Vacuum circuit breaker is a special type of circuit breaker used in power system.

Rated Current:

The rated current of the circuit breaker denotes the maximum continuous current that the breaker can carry without tripping or causing damage. It is usually specified in amperes (A).

Breaking Capacity:

The breaking capacity of a circuit breaker refers to its ability to interrupt a fault current safely. It represents the maximum current the breaker can interrupt under specified conditions without excessive wear or damage.

Operating Mechanism:

The operating mechanism of the circuit breaker determines how it is controlled and operated. Various mechanisms, such as spring charging, motorized, or manual, may be available for different applications.

Number of Poles:

The number of poles indicates the number of separate circuits that the circuit breaker can control simultaneously.

Common configurations include single-pole, double-pole, and three-pole breakers.

Closing Time:

The closing time of a vacuum circuit breaker refers to the time it takes for the breaker contacts to close after receiving a signal. It is typically measured in milliseconds (ms).

Opening Time:

The opening time signifies the time it takes for the breaker contacts to separate after a fault or when it receives a trip signal. Similar to the closing time, it is measured in milliseconds (ms).

Mechanical Endurance:

The mechanical endurance of a circuit breaker represents the number of operations (opening and closing) it can perform reliably before requiring maintenance or replacement.

Electrical Endurance:

The electrical endurance of the circuit breaker refers to the number of operations it can perform while reliably interrupting specified fault currents.

Technical Parameters

The technical parameters of load switch vacuum interrupter assembly adjustment are shown in the table

Typically steps we should adopt when we use the ZN39-40.5 vacuum circuit breaker

Typically steps we should adopt for the ZN39-40.5 vacuum circuit breaker using are below:

Determine your requirements:

Identify your specific electrical power system requirements, including the rated voltage, rated current, breaking capacity, and a few poles needed for your application. Ensure that the ZN39-40.5 model meets your system's specifications.

Consult with Shaanxi Yuguang Electric Co.,Ltd to offer the ZN39-40.5 vacuum circuit breaker. You can search online or consult electrical equipment distributors to find suitable options.

Provide project details:

Share relevant information about your project with the supplier or manufacturer, including application, the required quantity of circuit breakers, technical specifications, and any specific customization requirements.

Request a quotation:

Ask for a quotation for the ZN39-40.5 vacuum circuit breaker according to project requirements. The supplier or manufacturer will offer you the formal quotation list, lead times, and additional terms and conditions.

Evaluate the quotation:

Carefully review the quotation list, considering price, delivery, warranty, and after-sales service. Compare multiple quotations if necessary to make an informed decision.

Place an order:

If you are satisfied with the quotation, draft the contract with the chosen supplier or manufacturer. They will guide you through their specific ordering process, which may involve signing a purchase agreement and providing necessary payment and shipping details.

Follow up and coordinate delivery:

Maintain communication with the supplier or manufacturer to ensure a smooth delivery process. Confirm the delivery schedule, shipping method, and any necessary documentation required for customs clearance.

Installation and commissioning:

Once you receive the ZN39-40.5 vacuum circuit breaker, engage qualified electrical professionals to install and commission the circuit breaker by relevant safety guidelines and regulations.

We usually supply professional installation for customers so that they operate successfully.

OEM/ODM Services:

At Shaanxi Yuguang Electric Co., Ltd., we understand the importance of customization. That's why we offer comprehensive OEM and ODM services to meet your specific requirements. Whether you need private labeling or custom product development, our experienced team is here to assist you every step of the way.

Certificates:

We take pride in our commitment to quality and safety. Our products are certified to meet the highest industry standards, including:

3C Certification

ISO 9001 Certification

21 Utility Model Patents and Design Patents