KYN28-12 Switchgear 10KV Handcart SF6 Sulfur Hexafluoride Circuit Breaker Replaceable VS1-12

KYN28-12 switchgear 10KV handcart SF6 Sulfur hexafluoride circuit breaker replaceable VS1-12

Overview of indoor 10KVSF6 circuit breaker

The V G P medium voltage circuit breaker uses six alarm sulfur dioxide (SF6) gas as the arc extinguishing and insulation medium.

SF6 gas has a smooth breaking characteristic, and there will be no interruption of current when breaking it, and there will be no overvoltage during operation. This excellent characteristic ensures that the circuit breaker has a long electrical life. And the impact, dielectric level, and thermal stress on the equipment during operation will not be affected. The pole of the circuit breaker, namely the arc extinguishing chamber, is a Closed system free of maintenance for life. Its sealing life complies with IEC 62271-100 and CEl17-1 standards.

The opening/closing process of the V G P circuit breaker is completed by a REH type spring operating mechanism.

The operating mechanism and pole are fixed on the same metal frame, and it serves as a handcart that can be pushed in and out along the guide rail inside the switchgear. The handcart movement can be operated when the cabinet door is closed.

The lightweight and compact circuit breaker structure ensures its robustness and reliability.

The RCW series automatic reclosing integrates functions such as control, protection, measurement, communication, fault detection, and online monitoring of opening and closing.

Automatic buffer crushing technology without chopping wave arc extinguishing

Do not reignite after disconnection

An Extinction Method for Quickly Restoring Media Characteristics

Can withstand insulation voltage even under zero relative pressure (*)

Even under zero relative pressure, it can reach 30% of the rated breaking capacity (*)

Lifetime sealed pole

Perform three airtightness checks on each device, compact size

Fixed and withdrawable

The entire circuit breaker series of energy storage operating mechanisms based on anti jump devices as the standard

Mechanical safety locks to prevent incorrect operation

Simple personalized design benefits from a complete range of accessories that are maintenance free

SF6 gas pressure control device (as required).

Indoor 10KVSF6 circuit breaker application scenarios

The V G P circuit breaker can use the control and protection of thousands of distribution lines, Electrical substation, distribution stations, motors, transformers and capacitor banks.

Since SF6 automatic buffer breaking technology is adopted, the VGP circuit breaker will not produce switching overvoltage, so it is very suitable for those occasions that are particularly sensitive to the requirements of Dielectric strength level of insulating materials, especially for capacitive and inductive load applications such as capacitor banks, compensation reactors, motors, etc.

Arc extinguishing technology of indoor 10KVSF6 circuit breaker

The arc extinguishing principle of the V G P circuit breaker is based on the use of thermal expansion (self energy)+compressed air blowing, which can ensure that the arc gradually extinguishes regardless of its current value, and the arc pulling time is short, without the phenomenon of interruption and reignition.

The V G P series products adopt the thermal expansion+compressed air assisted arc extinguishing technology that has already been mature in the field of high-voltage switches, thus giving them an advantage in medium voltage switching.

Main technical data of indoor 10KVSF6 circuit breaker

Standard and inspection of indoor 10KVSF6 circuit breaker

The V G P circuit breaker complies with IEC 62271-100, CEi l- 1 1375 document standards and standards of major industrialized countries.

The V G P circuit breaker has passed all necessary tests to ensure safety and reliability under all operating conditions

Remote type test temperature rise test, power frequency withstand voltage test and impulse withstand voltage test, short-term withstand current, peak withstand current, mechanical life, making and breaking short-circuit current.

Factory test, main circuit power frequency withstand voltage test, auxiliary and control circuit withstand voltage test, main circuit resistance measurement, mechanical and electrical interlocking. The V G P circuit breaker shall be tested in accordance with the requirements of IEC 62271-100 standard (E2 level - Table 21) and shall be suitable for overhead lines with fast reclosing cycles.

Safety of indoor 10KVSF6 circuit breaker

Due to its complete mechanical and electrical interlocking devices (which can be supplied according to order requirements), the HM4 circuit breaker can be used in distribution switchgear that requires high reliability. The design of these locking devices effectively prevents incorrect operations by operators, thereby ensuring their safety

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