GIS SF6 model HXGN15 series Switchgear 12/24/36KV 630A 1250A M.V panel GB ISO
Product Introduction
General
The so-called "ring network cabinet" means that each distribution branch is equipped with a switch cabinet (outgoing switch cabinet), and the busbar of this switch cabinet is also a part of the ring trunk. In other words, the ring trunk line is composed of the bus bars of each outlet cabinet. Each outlet cabinet is called a "ring network cabinet". In fact, if you take out a ring network cabinet alone, you can't see the meaning of "ring network".
Protection device
On the basis of many years of application experience of domestic and foreign counterparts in the microcomputer protection device of the ring network cabinet, combined with the actual characteristics of the domestic integrated automation system, the development of a high-tech power automation product integrating protection, monitoring, control, communication and other functions is a composition Ideal electrical unit for intelligent switchgear. The product has a built-in protection library composed of more than 20 standard protection programs, which has a complete and powerful collection function of the voltage, current analog quantity and switch quantity of the primary equipment (current measurement is realized through the protection CT).
Microcomputer protection
Since the ring main unit is subjected to high voltage, a protection device is required to protect the ring main unit. The use of microcomputer protection devices in the ring main unit is becoming more and more popular. Due to the small size and low cost of the ring main unit, it is necessary to have a cost-effective and practical microcomputer protection device.
Service Environment
1. Air temperature: -35℃~+40℃
2. Humidity: Monthly average humidity 95%; Daily average humidity 90%.
3. Altitude:≤ 2500m
4. Ambient air not apparently polluted by corrosive and flammable gas, vapor, etc.
5. No frequent violent shake
Technical Data
| No. | Item | Unit | Parameter |
| 1 | Rated voltage | kV | 12 | 24 | 36 |
| 2 | Rated frequency | Hz | 50/60 |
| 3 | Rated current | A | 630(1250*) |
| 4 | 1min Power frequency withstand voltage | wet | kV | 38 | 50 | 70 |
| dry | kV | 48 | 60 | 85 |
| 5 | Lightning impulse withstand voltage | kV | 75 | 125/150 | 170 |
| 6 | Rated short circuit breaking current (peak) | kA | 80 | 63 | 63 |
| 7 | Rated active load and close circuit breaking current | A | 63 | 50 | 50 |
| 8 | Rated transferring current | A | 1700 | 1200 | 1200 |
| 9 | Rated short circuit making a current (peak) | kA | 80 | 63 | 63 |
| 10 | Rated cable(line) charging breaking current | A | 50 and 10 50/10 |
| 11 | Cable charge breaking current in earthing fault | A | 20 | 20 | 20 |
| 12 | Rated withstand current (peak) | kA | 80 | 63 | 63 |
| 13 | Short-time withstand current (2s) | kA | 25 | 20 | 20 |
| 14 | Mechanism life | times | 5000 | 2000 | 2000 |
Note: For short circuit breaking and the peak current is based on Fuse plus combination
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HXGN15 GIS SF6 MV Ring Main Unit RMU Electrical Panel Images
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