GIS is a type of switchgear that combines multiple high-voltage electrical appliances and is completely enclosed in a grounded metal casing. The casing is filled with SF6 gas at a certain pressure as an insulation and arc extinguishing medium.
1 Compact design
It is one of the most compact designs of single-phase enclosure GIS in the world. The width of a typical bay is 1200mm or 1500mm. The inner conductors and enclosures are made of corrosion-resistant aluminum. A bay with double busbar weights approx. 2,500 kg.
2. Superior interrupting capability
The circuit breaker is equipped with self-energized interrupter that is characterized by a self-adapting ability breaking of both small and large currents.
These breakers can cope with all known switching phenomena. Their efficiently designed interrupter clears both the severe rate of rise of the recovery voltage of short-line faults and the high recovery voltage peak of out-of-phase interruption. In magnetizing current switching, the overvoltage is less than twice the applied voltage. No restrike or reignition occurs in charging current switching.
Since the spring operating mechanism requires neither compressed air nor hydraulic fluid, inspection and maintenance work is minimized. Also, these breakers seldom require inspection since SF6 gas deterioration and arcing contact wear, owing to arc breaking, are negligible.
3. Perfect assembling and testing conditions and minimum work at site The GIS is assembled and tested against similar conditions of assembling site, packed in transport unit after tested, for easy and convenient transport and minimizing work at site.
4. The mode of separated monitoring is used in the SF6 gas system of GIS, doing away with SF6 valves and SF6 piping system. New self-sealed adapters and SF6 gas densimeters are used to get rid of the possibility of SF6 leakage outside the GIS, lowering the SF6 gas leakage.
In the GIS all elements are single phase enclosure except the main bus which is three phase enclosure. The enclosure is coaxial with the inner conductor supported by the insulators or spacers. Tulip contactors are used to adjoin the inner conductors together. Cable sealing end or SF6 outdoor bushing can be used to connect GIS with overhead lines or transformers.
The auxiliary electrical units required for command input, warning, locking, SF6 density monitoring etc are accommodated in local control panel of each bay.
----After-sales service:
Provide comprehensive pre-sales consulting and program design services.
Provide free repair or replacement service for faults caused by product quality problems during the product warranty period.
Provide lifelong technical support and after-sales service to ensure that customers have no worries.
Safe, efficient, environmentally friendly and energy-saving power solutions
Item |
Unit |
Data |
| Rated voltage |
kV |
72.5 |
126 |
145 |
252 |
| Rated current |
A |
2000,3150,4000 |
3150,4000,5000,6000 |
| Rated frequency |
Hz |
50,60 |
| Rated short circuit breaking current |
kA |
31.5,40 |
40 |
50 |
50 |
63 |
| Rated short time withstand current and duration |
kA/s |
31.5/3 |
40/3 |
40/4 |
50/3 |
50/3 |
63/3 |
| Rated peak withstand current |
kA |
82 |
104 |
100 |
125 |
125 |
164 |
| Rated short circuit making current |
kA |
82 |
104 |
100 |
125 |
125 |
164 |
Rated lightning impulse
withstand voltage |
To earth |
kV |
350 |
550 |
650 |
1050 |
| |
Across breaks |
kV |
350+35 |
550+100 |
650+100 |
1050+206 |
Rated short time power
frequency withstand voltage |
To earth |
kV |
160 |
230 |
275 |
460 |
| |
Across breaks |
kV |
160+16 |
230+70 |
275+40 |
460+160 |
Anhui Shine Electric Power Technology Co., Ltd
Shine specializes in providing consulting, sales, and service for electrical products. We are committed to providing customers with comprehensive electrical solutions to meet the power needs of different industries and fields.
Our products cover electrical products such as transformers, ring main units, combiner boxes, inverters, and PCS. These products are widely used in the power system, industrial and mining enterprises, new energy, and other fields. We also have a sufficient inventory of spare parts and components to ensure that customers can receive prompt supplies when needed.
We have a professional technical team with deep knowledge and practical experience in the power industry, who can provide professional technical consultation and after-sales service to customers. Our service team always takes customer needs as the guide, actively responds to customer needs, and ensures customer satisfaction.
1. Who we are?
We specialize in providing consulting, sales, and service for electrical products. We are committed to providing customers with comprehensive electrical solutions to meet the power needs of different industries and fields.
2.How can we guarantee quality?
We have comprehensive pre-sales and after-sales services. When we receive an order, we have standard procedure to provide client with a production and processing schedule within 3-4 days, including part names, delivery time, total assembly time, and testing plan.
3.What can you buy from us?
110kV-220kV Oil-immersed Power Transformer, Dry-type Transformer, Unpacked H Grade Dry Transformer, Oil-immersed Distribution Transformer, Pad-mounted Transformer, etc., and various spare parts.
4.Why should you buy from us?
As an enterprise specializing in power productions, we not only provide products, but also technical solutions as your need. We continuously focus on participating in and developing the construction of smart grids, striving to become excellent experts in solving power system problems with reliable quality, strict management, and efficient services. What's more, we have got many certificates like ISO-9000.
5.What services can we provide?
Power technical solutions, electric productions and spare parts, and E-learning class about the productions.
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