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
