Basic Info.
Shell Material
Stainless Steel
Application
Three-Phase AC 50Hz 40.5kv Single Double Busbar.
Transport Package
Export Package
Specification
Flexible Configuration
Product Description
Product Description1.Introduction
KEM-40.5 New Generation Gas Insulated Metal-Enclosed Switchgear is used for three-phase AC single busbar and single busbar section, double-busbar and double-busbar section with a frequency of 50 Hz and a rated voltage of 40.5 kV. It is used to receive and distribute electric energy and control and protect circuits. The rated current received and distributed by the switchgear is at most 2500 A and the interrupt short-circuit current is at most 31.5 kA. It can be widely used in such places as city subways, urban and rural power grids, large industrial and mining enterprises and plateau substations.2.Features
1)Heat-shrinkable insulation or epoxy coat is used as insulation to optimize shape of the electrode.
2)The switchgear uses imported hot-dip Al-Zn plates processed and formed by CNC machining tool, connected together by high strength bolt nut and rivet nuts.
3)It can be equipped with home-made or imported vacuum circuit breakers meeting needs of different users;
4)All functional cubicles are separated by metal plates fitted with independent pressure release channel.
5)Roll ball lead screw propulsion mechanism is used to make easy movement of the truck.
6)Switchgear structure has strong adaptability.
7)Mechanical interlocking mechanism for avoidance of misoperation
8)Easy operation and maintenance.3.Main Technical Data| S/N | Item | Unit | Data |
| 1 | Rated voltage | kV | 40.5 |
| 2 | Rated insulation level | Short-time power frequency withstand voltage | Phase-to-phase, phase-to-ground | 95 |
| Vacuum gap, isolating gap | 118 |
| Lightning impulse withstand voltage (crest) | Phase-to-phase, phase-to-ground | 185 |
| Vacuum gap, isolating gap | 215 |
| Short-duration power-frequency withstand voltage of auxiliary and control circuit | 2 |
| 3 | Rated frequency | Hz | 50 |
| 4 | Rated current of master busbar | A | …2500 |
| 5 | Rated current of branch busbar | …2500 |
| 6 | Rated short-circuit breaking current | kA | …31.5 |
| 7 | Rated short-circuit making current (crest) | …80 |
| 8 | Rated short-time withstand current | Main circuit | …31.5 |
| Earthing circuit | …27.4 |
| 9 | Rated peak withstand current | Main circuit | …80 |
| Earthing circuit | …68.5 |
| 10 | Rated short-circuit duration | Main circuit | s | 4 |
| Earthing circuit | 2 |
| 11 | Insulating gas | | N21) | SF62) |
| 12 | Water content of gas chamber | ppm | ≤250 |
| 13 | Annual leakage rate | | ≤0.1% |
Automatic robot for SF6 inflation and weldGermany Trumpf L3030 laser cutting machineJapan AMADA laser cutting machineGermany WAGNER automatic spraying production lineFinland FINN-POWER sheet metal flexible manufacturing production line5.Some Outstanding Achievements in National Key Projects1)Beijing-Tianjin intercity high-speed rail;2)
Alternative route of the Yellow River-crossing project in South-to-North water diversion;3)
Three Gorges project;4)
CCTV new site substation project.
Address:
1298 Xuji Avenue, Xuchang, Henan
Business Type:
Manufacturer/Factory
Business Range:
Apparel & Accessories, Consumer Electronics, Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters
Management System Certification:
ISO 9001
Company Introduction:
XJ Group Corporation is a large national enterprise. It ranks among Top 500 of China Enterprise and China Machinery Top 100. Our company is engaged in the research and production of power system automation, relay protection and control equipment, and provides all the related products and services of secondary and primary equipment of power system.
