38kV IEC Standdard Indoor Sf6 Gas Insulated Ring Main Unit Switchgear with Electric Mechanism
General
SF6 insulated medium voltage modular switchgear (RMU) offers increased functionality and compact dimensions for use in today's advanced MV secondary distribution systems.
USUNE GIS is specially designed for secondary distribution networks, wind farms and photo-voltaic power stations with ratings up to 38 kV. This range is available for both indoor and outdoor environments and offers high levels of reliability and operator safety. It is a compact, cost-effective and virtually maintenance free product.
Ambient condition:
1.Altitude: Not exceed 2500m above sea level;
2.Ambient temperature:-25℃ ~ +45℃, the highest temperature is not exceed25℃;
3.Ambient humidity: Daily average RH ≤ 95%; Monthly average RH ≤ 90%
4.Earthquake intensity: ≤ 8°;
5.No flammable, explosive, no serious pollution, No chemical corrosion and severe vibration.
Purpose
Distribution of three - phase alternating current electrical energy with nominal frequency 50 Hz and nominal voltage up to 38 kV.
Application
in electricity distribution networks and industrial plants, in secondary distribution, in industrial plants, in unmanned
distribution substations.
General characteristics
-indoor drawout switchgear, gas insulated SF6
-free standing or wall mounted
-metal - clad, with metallic partitions
-fit for computer aided system of supervision and control
-mechanical interlocks of switching devices
-gas tank made of stainless steel
-pressure gas indicator in each cubicle
-pressure rapture disk directing the gases to the relief duct compartment
-small overall dimensions,
-convenient switching operations with closed door
-guarantee of proper switching operation owing to the system of interlocks eliminating faults
-safety for the operating staff
-high voltage indication in each panel
-convenient access to connect cables and apparatus
-minimal inspection and maintenance requirements
-environment friendly production and operation
-producer's professional service
-perfect quality finish (painted or galvanized)
-reliability, easy extension.
Technical data
Rated voltage |
12kV |
24kV |
Rated current |
630A |
630A |
Power-frequency withstand voltage (1 min) |
42kV |
50kV |
Lightning impulse withstand voltage |
75kV |
125kV |
Rated short-time withstand current (4s) |
25kA |
20kA |
Rated peak withstand current |
63kA |
50kA |
Degree of Protection |
Gas tank: IP67 |
Enclosure:IP4X |