Description
Product Overview
XGN series cubicle-type fixed metal-enclosed switchgear is applicable for 3.6~36kV ring main unit power supply and biradial power supply system. It also can be applied to the terminal power supply or fitted into a cubicle-type substation for the control and protection of electric power. it can be used to protect and control the electrical equipment in power stations, transformer substations and distribution substations in settings such as industrial, manufacturing, residential and mining application.
Applicable Standards
IEC 62271-200 High-voltage Switchgear and Controlgear-Part 200:AC Metal-enclosed Switchgear and Controlgear for Rated Voltages Above 1kV and Up to and including 52kV;
IEC 62271-105 High-voltage Switchgear and Controlgear-Part 105:High-voltage Alternating Current Switch-Fuse Combinations;
IEC62271-102 High-voltage Switchgear and Controlgear-Part 102:Alternating Current Disconnectors and Earthing Switches;
IEC62271-103 High-voltage Switchgear and Controlgear-Part 103:High-voltage Alternating Current Load Break Switch;
IEC62271-1 Common Specifications for High-voltage Switchgear and Controlgear.
Normal Operating Conditions
Ambient air temperature:-25℃~+40°℃;
Altitude ≤1,000m;
Daily average relative humidity ≤95%, and monthly average relative humidity ≤90%;
No frequent strenuous vibrations;
Ambient environment shall not be exposed to dust, corrosive gas, steam or salt mist, etc.;
Structural Features
Switchgear body is made of high-quality aluminum-zinc coated steel plate, processed by CNC processing equipment, characterized in high precision, high strength, anti-corrosion, lightweight and functional versatility.
It has characteristics of high reliability, long service life and low maintenance requirement.
The interlock is safe and easy to operate
.A reliable earthing protection system and pressure releasing channel (optional) at the back of switchgear is designed to ensure personal safety.
Technical Parameters
| No. | Description | Unit | Parameters | |||
| 1 | Rated voltage (Ur) | kV | 12 | 24 | 36 | |
| 2 | Rated current(lr) | A | 630 | 630 | 630 | |
| 3 | Rated frequency(fr) | Hz | 50 | 50 | 50 | |
| 4 | Rated short-time power-frequency withstand voltage/1min(phase-to-phase&to-earth/across theisolating distance) | kV | 28/32 | 50/60 | 70/80 | |
| Rated lightningimpulse withstand voltage(phase-to-phase&to-earth/across the isolating distance) | kV | 75/85 | 125/145 | 170/195 | ||
| 5 | Rated short-time withstand current | kA/s | 25/3 | 20/3 | 16/1 | |
| 6 | Rated peak withstand current | kA | 62.5 | 50 | 40 | |
| 7 | Rated short-circuit making current | kA | 62.5 | 50 | 40 | |
| 8 | Rated transfer breaking current | A | 1700 | 1400 | 630 | |
| 9 | Rated closed-loop breaking current | A | 630 | 630 | 630 | |
| 10 | Maximum rated current of the fuse | A | 200 | 200 | 63 | |
| 11 | Mechanical endurance | Main switch | ops | M2(5000) | M2(5000) | M1(1000) |
| Earthing switch | ops | M1(2000) | M1(2000) | M0(1000) | ||
| 12 | Electrical endurance | / | Class E3 | Class E3 | Class E3 | |
| 13 | lAC class | / | A-FLR 20kA/1s 25kA/1s |
A-FLR 16kA/1s 20kA/1s |
A-FLR 16kA/1s |
|
| 14 | Degree of protection | / | IP 4X | IP 4X | IP 4X | |
