12kv Indoor High Voltage Isolation Switch

• Type: High-voltage
• Structure: Three-column Disconnector
• Installation: Indoor High-voltage
• Operation: Manual
• Grounding Mode: as Specification
• Movement Mode: as Specification
• Model NO.: GN19-12
• Number of Poles: Three Pole
• Grounding: as Specification
• Series: Three
• Run: as Specification
• Switching Mode: as Specification
• Common Model: as Specification
• Structure of Operating: Manual
• Certification: ISO
• Brand: Liyond
• Rated Voltage: 12kv
• Current: 400A-1250A
• Color: Grey
• Transport Package: Standard Export Packaging
• Specification: as specification
• Trademark: Liyond
• Origin: China

Product Description

GN19-12, 12C Series Indoor High-Voltage Disconnect Switches

Product Description

The GN19-12, 12C series indoor high-voltage disconnect switches, manufactured by Yueqing Liyond Electric Co., Ltd., are designed for indoor use with a rated voltage of 12kV, three-phase AC 60Hz. These switches are used for dividing and closing circuits under voltage and no load conditions.

Features:

• Three-pole type design


• Consists of base frame, rotating shaft, lever, porcelain pillar insulator, gate knife, and connection board


• Conductive part fixed on base with pillar insulators


• Improved mechanical strength with connecting contact knife composed of two slotted copper plates


• Includes magnetic locking plate for enhanced stability during large short-circuit currents

Working Principle:

The conductive part of the disconnect switch is fixed on the base by pillar insulators, with each phase installed in parallel. The contact knife is connected to the tie insulator and spindle, which is operated through the handle and moving mechanism.

Model Meaning:

The model numbers of the disconnect switches indicate the type and capacity of the switch, with variations in design based on the rated current and application requirements.

Product Description

Technical Parameters

Company Name: Yueqing Liyond Electric Co., Ltd.

Environmental Conditions:

• Ambient Temperature: +40ºC (upper limit), -10ºC (lower limit). Storage and transportation allowed at -25ºC.


• Altitude: Not more than 1000m.


• Relative Humidity: Daily average not more than 95%, monthly average not more than 90%.


• Water Vapor Pressure: Daily average not more than 2.2 × 10-3Mpa, monthly average not more than 1.8 × 10-3Mpa.


• Air Quality: Free from corrosive or combustible gases, water vapor, and pollution.


• Vibration: No regular and violent vibration.

Note: Consult the manufacturer for any deviations from the above conditions.

Technical Parameter:

Include specific technical parameters here.

Model	Rated voltage  (kV)	Rated current  (A)	Rated short-time withstand current (kA/4s)	Rated peak withstand current (kA)
GN19-12/400-12.5	12	400	12.5	31.5
GN19-12/630-20	12	630	20	50
GN19-12/1000-31.5	12	1000	31.5	80
GN19-12/1250-31.5	12	1250	31.5	80
GN19-12C/400-12.5	12	400	12.5	31.5
GN19-12C/630-20	12	630	20	50
GN19-12C/1000-31.5	12	1000	31.5	80
GN19-12C/1250-31.5	12	1250	31.5	80