126/145KV Single Phase Metal Enclosed Gas Insulated Switchgear (GIS)

Send Message Request a Quote

1. Product Overview
We have developed the 126/145KV single phase metal enclosed gas insulated switchgear (GIS) on the basis of our years of experience in producing GIS and by using advanced domestic and foreign GIS design concepts for reference. Our product has passed all type tests in KEMA, an authoritative international test station. Tests of all components are carried out by adopting high-level parameter values specified in the standards of DL, GB, and IEC.

Our gas insulated switchgear meets the requirements of national standard GB7674-2008 and international standard IEC60517-1990. All the components of the GIS conform to corresponding national standards.

With reasonable design and advanced technology, our product has compact structure and high reliability. Compared with traditional products, our gas insulated switchgear has smaller volume, better stability, stronger corrosion resistance, and shorter installation period. It is the ideal choice for the power system.

2. Service Conditions

Installation site	Indoor or outdoor
Ambient temperature	-30℃~ 40℃
Altitude	1000m (No limitation for special order)
Humidity (25℃)	Relative humidity at average per day: ≤95% Relative humidity at average per month: ≤90%
Wind speed	≤ 35m/s (wind pressure ≤700Pa)
Sunlight intensity	0.1W/cm2 (at wind velocity of 0.5m/s)
Icing thickness	10mm
Seismic intensity	Horizontal acceleration: ≤0.4g Vertical acceleration: ≤0.2g (g, the acceleration of gravity, is 9.8m/s2)
Symmetrical Creepage distance	25mm/kV (pollution class III), 31mm/kV (class IV)
Keep the product away from places with combustible, explosive, corrosive materials and violent vibrations.

3. Main Features
a. This is a miniaturized gas insulated switchgear. The minimum bay width is 1.2 meters and a standard bay covers an area of 4.34m2.
b. Our product is equipped with the circuit breaker which adopts the self-energy arc extinguishing of "thermal expansion plus compressing air to assist in blowing" principle. With simple and reliable structure, it has high breaking ability and short arcing time. The total breaking time is three cycles. The breaking times at full load are 20 times.
The circuit breaker is equipped with a CT26 spring operating mechanism which has simple and compact structure, high reliability, and little maintenance, meeting the no-oil requirement. The mechanical life of this mechanism reaches 6,000 times.
c. The product housing is made of aluminum alloy, which has many advantages, such as light weight, small site construction workload, corrosion resistance, small eddy current loss, and low temperature rise.
d. With the radio interference level lower than 500μV, our metal enclosed gas insulated switchgear is suitable for installation in the urban areas and residential areas.
e. Our product has strong environmental adaptability. It can be used in areas with harsh environmental conditions, such as severe contamination, high altitude, frequent earthquakes, etc. It can also be applied in downtown areas which is short of lands and in mountainous regions where it is difficult to excavate earth and stone.
f. The wiring mode can be chosen according to customer requirements. Multiple modes can be adopted, such as sectionalized single-bus configuration, bridge connection, double-bus configuration, etc.
g. Excluding the lead-out bushing and part of the connection buses, the bay can be transported as a whole, which greatly reduces site installation workload and duration.
h. Online monitoring and intelligent control of the GIS can be achieved.
i. Our metal enclosed gas insulated switchgear can be installed indoors and outdoors, showing strong adaptability.

126/145KV Single Phase Metal Enclosed Gas Insulated Switchgear (GIS)

4. Technical Parameters

No.	Item	Unit	Value
1	Rated voltage	kV	126/145
2	Rated frequency	Hz	50/60
3	Rated current	A	2000, 3150
4	Rated short-time withstand current	kA	31.5, 40
5	Short circuit duration	s	4
6	Rated short-time power frequency withstand voltage	kV	230/275 (phase to earth, phase to phase)
6	Rated short-time power frequency withstand voltage	kV	230 70/ 275 40 (fracture to fracture)
7	Rated lightning impulse withstand voltage (peak)	kV	650 (phase to earth, phase to phase)
7	Rated lightning impulse withstand voltage (peak)	kV	650 100 (fracture to fracture)
8	Rated SF6 gas pressure / alarm value (20℃)	MPa	Circuit breaker compartment: 0.5/0.45
8	Rated SF6 gas pressure / alarm value (20℃)	MPa	Other gas chamber: 0.4/0.3
9	Annual SF6 gas leakage rate	%	≤1
10	Water content of SF6 gas (20℃)	ppm	Circuit breaker compartment≤150 (during handover)
10	Water content of SF6 gas (20℃)	ppm	Other gas chamber≤250 (during handover)
11	Amount of partial discharge	pC	≤10
12	Radio interference level	μV	≤500
13	Bay width	m	1.2

Related Names
Electric Switchgear | Industrial Outdoor Electrical Equipment | Metal Clad Switchgear

Scan QR to Read
Links：https://globefindpro.com/products/85194.html