Gw5a - 40.5 Series Outdoor High-Voltage AC Isolator Isolation Switch Disconnectors

• Type: High-voltage
• Structure: Three-column Disconnector
• Installation: Outdoor High-voltage
• Operation: Electric
• Grounding Mode: Grounding
• Movement Mode: Horizontal Rotary Type
• Model NO.: GW5A
• Number of Poles: Three Pole
• Structure of Operating: Electric
• Certification: ISO
• Altitude: No More Than 1000m
• Pollution Level: E-Level
• Rated Frequency: 50Hz
• Rated Voltage: 40.5kv
• Mechanical Life: 2000 Times
• Transport Package: Export Box
• Trademark: DGG
• Origin: China
• HS Code: 853530900
• Production Capacity: 10000PCS/Year

Product Description

Photos of product

General

GW5A-40.5 series outdoor high voltage AC disconnector (hereinafter referred to as "disconnectors/isolators") 'is an outdoor high-voltage switchgear with a rated frequency of 50Hz. It is used for the replacement of the high-voltage line under the condition of voltage and no load, and for the electrical isolation of the overhauled high-voltage bus, circuit breaker, and other electrical equipment from the charged high-voltage line. It can also be used for opening and closing small capacitance current and inductance current.

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

Technical Parameters
 

No.	Item		Unit	Data
1	Rated Frequency		Hz	50
2	Rated Voltage		kV	40.5
3	Rated Current		A	630		1500		2000
4 5	Rated Short-time Withstand Current  Rated Short-Time Withstand Current(Peak Value)		kA	20/4		31.5		40/50
				50/63		80		100/125
6	Rated short-time power frequency withstand voltage		kV/min	95/1 (Interphase, to earth, dry-type)
				118/1 (Interphase, to earth, dry-type)
				95/1 (Interphase, to earth, dry-wet)
7	Rated lightning impulse withstand voltage		kV	185 (Interphase, to earth)
				215 (Fracture)
8	Rated Short-Time Withstand Current Continuous Time		s	4 (Isolation Switch)			2 (Earthing Switch)
9	Main Circuit resistance		μΩ	≤100			≤80
10	Matching operating mechanism	Human Operational Mechanism		CS17 - G5 (Without Earthing Switch)
				Main force CS17 - G5, grounding force CS17 - G2 (with single/double grounding switch)
		Motor Operational Mechanism		CJ6 type, motor voltage AC380V or DC220v, grounding voltage AC220V or DC220v, auxiliary contact 8 normally open and normally closed (standard configuration)
11	Mechanical life		Times	2000 (Isolation Switch/Earthing Switch)
12	Creepage distance		mm	Over 1256 (e - Level)
Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate.

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. Adopt perfect and improved design, installation without welding, simple and convenient operation;
2. A double column V-type rotating and contact turning structure is adopted, which has the ability to automatically clean the contact and improve the contact reliability;
3. The contact finger is made of new materials with high strength, high conductivity, and high elasticity. The contact is clamped by the elastic force of the contact finger to avoid the vicious cycle caused by the reduction of the clamping force of the contact caused by the spring corrosion and thermal annealing and the intensification of the contact heating;
4. The rotating part is designed according to the maintenance-free requirements
5. The stainless steel shaft pin and oil-free self-lubricating bearing are used to match the structure, and the steel parts are made of hot zinc to ensure that the product is flexible, light, reliable, and never rusted;
6. the insulator is made of high-strength porcelain material, with a large creepage distance design, strong pollution resistance, and environmental adaptability, and can meet the operation requirements in high-altitude areas.

Outline And Installation Dimension