Dgw11-15 Series Outdoor High-Voltage AC Disconnector Switch / Isolator

• Type: High-voltage
• Structure: Three-column Disconnector
• Installation: Outdoor High-voltage
• Operation: Electric
• Grounding Mode: Grounding
• Movement Mode: Horizontal Rotary Type
• Model NO.: DGW11-15
• Number of Poles: Three Pole
• Structure of Operating: Electric
• Certification: ISO
• Transport Package: Export Box
• Trademark: DGG
• Origin: China
• HS Code: 853530900
• Production Capacity: 10000PCS/Year

Product Description

GENERAL

DGW11-15 series outdoor high-voltage AC disconnector (hereinafter referred to as simple disconnector) is a single-phase hook bar operated disconnector with a white lock device. The disconnector is applicable to the isolation of 12V and 15kV overhead lines. It can be opened and closed without load. It is widely used with circuit breakers or load switches and provides safe and visible fractures for the lines.

The disconnector complies with technical standards such as high voltage AC disconnector and earthing switch (GB1985-2014) and high voltage AC disconnector and earthing switch (DLT4862010).


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. simple structure, easy to install and use;
2. the base adopts a high-strength steel plate or SUS304 stainless steel plate treated by a hot-dip anti-corrosion process to ensure reliable operation and anti-corrosion performance; Square neck bolts are used to match the square holes on the base plate, which is convenient for the actual installation.
3. The post insulator is made of high-strength outdoor epoxy resin solid casting, with a large creepage distance design, which not only reduces the product weight to the maximum extent but also has good water performance;
4. The main circuit adopts a symmetrical double static contact design so that the product has double circuit conduction. At the same time, the fastening rotating part is in the position of a non-main electric circuit, which ensures low-temperature rise under normal operation. All parts of the main electric circuit are treated with a silver plating process, which effectively enhances the conductivity of the product:
5. the standard double hole wiring bar is adopted for the wiring. The size and spacing of the copper bar holes conform to the domestic common custom, which is convenient for the user to install;
6. the knife switch limit device can enhance the stability of knife switch operation, and there are two limit modes of 90 ° or 160 °. The default delivery mode is 160 °, and it can be adjusted by itself if a 90° position or unlimited position is required;
7. the lever design for operating the pull ring and rotating the lock pin is easy to operate separately and improves the ice-breaking ability.

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		kA/s	20(25)/4
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)		30/1
		Fracture(wet)		36/1
7	Rated lightning impulse withstand voltage	Interphase, to earth	kV	75
		Fracture		85
8	Circuit resistance		μΩ	≤80
9	Mechanical life		Times	3000
10	Pollution grade			e - Level
11	Creepage distance		mm	≥372
Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate.

 

OUTLINE AND INSTALLATION DIMENSION