Gang Operated Air Break Switches

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Quick Details

Product Name:

Gang Operated Air Break Switches

Brand:

Silverstone Electric

Certification:

ISO, ISO9001

Structure of Operating:

Electric

Series:

Three

Grounding:

Single Ground

Number of Poles:

Three Pole

Movement Mode:

Vertical Rotary Type

Grounding Mode:

Grounding

Operation:

Electric

Installation:

Outdoor High-voltage

Structure:

Three-column Disconnector

Type:

High-voltage

Feature:

High Stability

Transport Package:

Wooden Case

Specification:

1200*900*1500

Origin:

China

HS Code:

3917310000

Product Details

Features
• Designed and manufactured to meet or exceed the requirements of IEC 62271
• Accommodates many customer specific requirements where they differ from IEC
• Silicone insulators with minimum of 25mm/kV creepage
• Plated HDHC copperwork for longevity of life
• Available in 12/15.5 kV, 24 kV and 36 kV voltage ranges
• Standard current ratings of up to 1250 A
• Short time withstand current of 25 kA rms for 3 seconds with 62.5 kA peak
• Standard fault make capacity of 3 kA rms with 7.5 kA peak
• Compact and robust construction
• Suitable for horizontal and vertical mounting
• Suitable for mounting pole top (above the line) or underslung (below the line)

Accessories
• Low level operating handle, high level hookstick mechanism or Independent Manual Spring (IMS) operating mechanism
• 10k A rms 25k A peak fault make capacity when combined with IMS mechanism
• Load break devices with breaking capacity of 630 A for on-load use
• Can be fitted with motor drive/RTU for remote operation
• Earth blades rated at 25 kA 3 sec for fitting to either side
• Self-latching shootbolt on hookstick mechanism can be fitted with safety lock flap for lockoff and point of isolation
• Mounting steelwork to suit single or double pole construction
• Can be fitted with drop out expulsion fuses to form a combination switch fuse

Main Technical Specification

Sheet 1

No.	Item		Unit	Data
1	Rated voltage		kV	12	24	36
2	Rated frequency		Hz	50/60
3	Rated current		A	200/400/630
4	Rated short circuit withstand current (1S)		kA	20
5	Rated peak withstand current (1S)		kA	50
6	Rated making current		kA	31.5-50
7	Rated insulation level(HV)	lightning impulse	kV	75/85	125/145	170/195
7	Rated insulation level(HV)	Power frequency withstand	kV	45	55/75	75/100
8	Rated short circuit breaking capacity cos. Φ(0.7) Without maintenance of contacts			——————————
	– for active circuits	20 breakings	A	630	630	400
		30 breakings		400	400	300
		40 breakings		300	300	250
		50 breakings		250	250	170
		75 breakings		170	170	160
		120 breakings		110	110	110
		200 breakings		65	65	65
		280 breakings		50	50	50

Sheet 2

No.	Item	Unit	Data
1	Rated voltage	kV	12	24	36
9	For ring circuits breaking capacity	A	630	400	250
10	Rated breaking capacity of transformer	A	50
11	Rated breaking capacity of cable charging	A	11
12	Rated breaking capacity of earthing fault	A	56

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