11kv/630A Gas Insulated Outdoor Pole Mounted Load Break Switch

• Type: High-voltage
• Structure: Three-column Disconnector
• Installation: Outdoor High-voltage
• Operation: Electric
• Grounding Mode: Grounding
• Movement Mode: Horizontal Rotary Type
• Model NO.: GW1
• Number of Poles: Three Pole
• Structure of Operating: Electric
• Transport Package: Export Box
• Trademark: DGG
• Origin: China
• HS Code: 853530900
• Production Capacity: 10000PCS/Yea

Product Description

GENERAL

GW1-12 series outdoor high voltage AC disconnector (hereinafter referred to as "disconnector") It is applicable to the device on the outdoor high-voltage distribution equipment line for the replacement of 10kV line under voltage and no load, and for the electrical isolation of the overhauled high-voltage bus, circuit breaker and other electrical equipment from the live high-voltage line. It can also be used to close a small capacitive current and inductive current.

The Isolation switch(disconnector) is a double column vertical opening type, equipped with a manual or electric mechanism, which can realize three-phase linkage.

The Isolation switch meets the technical standards of high voltage AC disconnectors and earthing switches (GB/T 1985-2014) and high voltage AC disconnectors and earthing switches (DL/T 486-2010).


MODEL AND MEANING 


USAGE: ENVIRONMENTAL CONDITIONS

1. Altitude: no more than 1000m. If the altitude is higher than 1000m, the rated insulation level shall be corrected accordingly.
2. Ambient temperature: upper limit + 45 ⁰C, lower limit - 40 ⁰C, average temperature of the hottest month 30 ⁰C, maximum daily temperature difference 25K.
3. Solar radiation intensity (outdoor): 0.1W/cm²
4. Wind speed / pressure (outdoor): 34m/s  /  700Pa
5. Pollution level: e-level
6. Icing thickness: not more than 20mm
7. Humidity: average daily relative humidity, not more than 95%, average monthly relative humidity not more than 80%
8. Earthquake resistance: horizontal acceleration 0.3m/², vertical acceleration 0.15m/s²
9. Safety factor: sinusoidal resonance three cycle wave, safety factor above 1.67.

MAIN ADVANTAGES

1. The utility model has the advantages of simple structure, beautiful appearance, and convenient installation.
2. The insulator is designed with high-strength porcelain material and a large climbing distance, which has strong pollution resistance and environmental adaptability and can meet the operation requirements in high-altitude areas.
3. The interlocking device can effectively prevent the misoperation of the grounding knife.
4. The operation is simple and reliable. Manual or electric operation mechanisms can be selected according to the user's requirements.

TECHNICAL PARAMETERS
 

No.	Item		Unit	Data
1	Rated Frequency		Hz	50
2	Rated Voltage		kV	12
3	Rated Current		A	630(1250)
4	Rated Short-time Withstand Current and Duration	Isolation Switch	kA/s	20/4	25/4	25/4	31.5/4
		Earthing Switch		20/2	25/2	25/2	31.5/2
5	Rated peak withstand current		kA	50(63)
6	Rated short-time power frequency withstand voltage	Interphase, to earth(dry)	kV/min	42/1
		Fracture(dry)		48/1
		Interphase, to earth(wet)		42/1
7	Rated lightning impulse withstand voltage	Interphase, to earth	kV	75
		Fracture		85
8	Circuit resistance		μΩ	≤100		≤80
9	Mechanical life		Times	3000
10	Creepage distance		mm	≥372 (e - Level)
Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate.

 

OUTLINE AND INSTALLATION DIMENSION