GGD China factory low-voltage industrial electrical switchgear
1.Product Description
Ac metal closed type shift switch cabinet is a three-phase ac 50HZ indoor device metal closed switch equipment.Is used in power plants, substation system rated voltage 35kV, rated maximum current 2000A maximum voltage no more than 40.5kV single bus or single bus sectionalized sets of distribution equipment.
This switch device meets the requirements of DL/ t404-91, IEC298, GB3906 and other standards, and has the functions of preventing wrong operation of circuit breaker, pushing and pulling handcart with load, grounding line, power transmission with grounding line and accidental charging interval (referred to as "five precautions")
Technical Parameters
| No | Item | Unit | Parameter |
| 1 | Rated voltage | kV | 7.2kV, 12kV, 17.5kV, 24kV |
| 2 | Ratec frequency | Hz | 50/60 |
| 3 | Rated current | A | 630, 1250, 1600, 2000, 2500, 3150, 4000 |
| 4 | Branch busbar rated current | A | 630, 1250, 1600, 2000, 2500, 3150, 4000 |
| 5 | Main busbar rated current | A | 630, 1250, 1600, 2000, 2500, 3150, 4000 |
| 6 | 1 min power frequency withstand voltage(wet/dry) | kV | 38/48, 50/60/60/65 |
| 7 | Lightning impulse withstand voltage | kV | 75, 95/125 |
| 8 | Rated short circuit breaking current(peak) | kA | 40/50/63/80/100 |
| 9 | Short time withstand current(4s) | kA | 20/25/31.5/40 |
| 10 | Protection type | | IP4X for housing |
| No | Item | Unit | Parameter |
| 1 | Rated voltage | kV | 36kV, 40.5kV |
| 2 | Ratec frequency | Hz | 50/60 |
| 3 | Rated current | A | 630, 1250, 1600, 2000, 2500, 3150, 4000 |
| 4 | Branch busbar rated current | A | 630, 1250, 1600, 2000, 2500, 3150, 4000 |
| 5 | Main busbar rated current | A | 630, 1250, 1600, 2000, 2500, 3150, 4000 |
| 6 | 1 min power frequency withstand voltage(wet/dry) | kV | 70/95 |
| 7 | Lightning impulse withstand voltage | kV | 170/185 |
| 8 | Rated short circuit breaking current(peak) | kA | 20/25/31.5/40 |
| 9 | Short time withstand current(4s) | kA | 40/50/63/100 |
| 10 | Protection type | | IP4X for housing |
2.Product pictures
Structural Features
- The iron core is made of high-quality cold-rolled oriented silicon steel sheet, the surface is specially treated with protective resin, and full-inclined seam lamination structure is adopted.
- The low-voltage coil is of foil winding structuremade of high-quality steel foil. The high-voltage coil is of layer structure formed by vacuum epoxy casting technique. Lowpartial discharge in similar product catalog;
- This model features high mechanical strength, strong short-circuit resistance, good dust-proof and anti-fouling performance. Its service life is longer than other dry transformer.
- The product’s beautiful stainless steel shell is durable and can provide better protection for the electrified parts of the transformer. Itworks well outdoors.
- With excellent moisture-proof and corrosion-resistant performance, the product is safe, fire-proof and pollution-free.It’s especially suitable for working in extremely harsh environmental conditions, and can restart without drytreatment after shutdown.
- Good heat dissipation performance and strong overload capacity enables it operate with higher capacitywhen forced air cooling.
3.Production details and workshop
4.Conditions of Use
1.The maximum ambient air temperature shall not exceed 40°C, and the minimum shall not below -25°C;
2.The altitude shall not exceed 1000m. If special customized transformers and low-voltage components are used, the altitude can reach 4,000m;
3.The vertical inclination is no more than 5°, and no violent vibration and impact;
4.The air humidity is not more than 90% (25°C);
5.No gas and conductive dust that will seriously affect the insulation of transformer,no explosion hazard and corrosion of electrical components;
6.Outdoor wind speed shall not exceed 35m/s;
7.If service conditions beyond the above, specially customized product is available.
we are the large-scale electric complete sets of manufacturers in China, specializing in oil-immersed transform ers, dry-type transformers, high-voltage Cabinets, low-voltage cabinets and substa tion manufacturing specialized electrical enterprises. We can provide good quality and pretty competitive price.
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GGD China factory low-voltage industrial electrical switchgear Images
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