Gn19 12kv Indoor AC High-Voltage Disconnect Switch

• Customization: Available
• Type: High-voltage
• Structure: Three-column Disconnector
• Model NO.: GN19
• Installation: Indoor High-voltage
• Operation: Manual
• Grounding Mode: Not Grounding
• Movement Mode: Vertical Rotary Type
• Number of Poles: Three Pole
• Grounding: Double Ground
• Series: Three
• Run: Turn the Horizontal
• Switching Mode: Double-Throw Type
• Common Model: YR
• Structure of Operating: Pneumatic
• Certification: ISO, CE, IS9001
• Brand: OEM
• Transport Package: Wooden Case
• Specification: standard sizes
• Trademark: OEM
• Origin: Wenzhou
• HS Code: 8537201000
• Production Capacity: 1000PCS/Week

Product Description

GN19-12 Indoor AC High-voltage Disconnect Switch

 

Description:
GN19-12(C) indoor HV disconnect switch applies to power system of rated voltage 12kV, AC 50/60Hz. It is equipped with CS6-1 manual-operating mechanism and is used to break and make circuit under no-load. There are additional pollution type, high-altitude type and power indicating type. It is made as per IEC 62271-102.

Ambient Conditions:

1.Ambient temperature: -25°C ~ +40°C;
2.Altitude: ≤1000m;
3.Relative humidity: daily average ≤95%, monthly average ≤90%;
4.Earthquake intensity: ≤8 level;
5.Installation places: no fire, explosion hazard, serious filthy, chemical corrosion or severe vibration.

 

Structure and working principle

 

The conductive part of GN19-12/400, 630, 1000, 1250 type disconnect switch is fixed on the base by two pillar insulators for each phase. (GN19-12C/400, 630, 1000, 1250 type has one pillar insulator and one porcelain casing insulator.) The three phases are installed in parallel, and the conductive part consists of static contacts of contact knives and contact holders (or conductive rods). Each phase of the contact knife are connected to the middle of the tie insulator, tie insulator and installed on the base of the spindle connected. The spindle is connected to the connecting rod (user-provided) and CS6-1 type of moving mechanism through the handle. The connecting contact knife is composed of two slotted copper plates, which not only increases the heat dissipation area of the contact knife to lower the bottom temperature, but also improves the mechanical strength of the contact knife, so that the dynamic stability of the switch is improved. One end of the contact knife is mounted on the contact block (or on the conductive rod) by a bolt (car of Shaw). GN19-12/1000, 1250 in contact with the installation of magnetic locking plate, plus the purpose of the magnetic locking plate is that when a large short-circuit current to enhance the two groove contact knife between the| attraction. GN19-12/400, 630 disconnect switches have a small limit through current, so there is no need to add amagnetic locking plate.

Note: Products with special requirements, specifications and dimensions that need to be improved can be designed and manufactured according to user requirements.

Product Paramenters

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