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Today's Best Deals 11 kv insulated rubber electrical safety matting 1000v
Ensure the safety of your employees by using 11 kv insulated rubber electrical safety matting 1000v. Engineered to endure voltages of up to 1000 volts, these mats offer exceptional insulation and slip resistance, contributing to a secure workplace. They are particularly suitable for industrial environments, power generation facilities, and electrical substations.
11KV SF6 Gas Load Break Switch
https://www.zhgopower.com/products/11kv-sf6-gas-load-break-switch/
The FWX1-12/630 outdoor SF6 load break switch is suitable for the distribution network with the highest voltage 11kV, the rated current 630A, and the rated frequency 50/60Hz, which can break off and close the load current and overload current in the power system. The load switch is equipped with an intelligent controller to realize the automation of the distribution system.
Features of 12KV SF6 Gas Load Break Switch
The operating mechanism with spring energy storage ensures fast closing and switching operation (<1000ms).
Operator place: Local/Remote.
Equipped with an electronic controller, it can be operated locally or with FTU/RTU interface for console operation.
Specification of 11KV SF6 Gas Load Break Switch
Parameter Name
Unit
Technical Requirement
Rated Maximum Voltage
kV
12
Rated continuous Current
A
630
Short Time Withstand Current
kA
20
Short-circuit Making Current (peak)
kA
50
Power Operating Time (Close/Open)
sec
<2
Mechanical Operations
times
3000
Rated full load operations
times
400
Breaking Capacity
Main Active (0.7pf)
A
630
Cable charging
A
5
Transformer magnetizing
A
10
Lightning Impulse Withstand Level
Phase to Earth
kV
75
Across interrupter
kV
85
Power Frequency withstand voltage
Phase to Earth
kV
42
Across interrupter
kV
50
Other Ratings & Specifications
Creepage Distance (Silicon)
mm
830
IP Level
65
Arc Extinction Medium
SF6 Gas
Insulation Medium
SF6 Gas
Leakage Rate
cc/ sec
≤0.5%
Product size (max)
Width
mm/in
1368/54
Height
mm/in
530/21
Environmental Conditions for Equipment Use
Environmental conditions for equipment use
2.1 height above sea level：≤3000m
2.2 Air temperature： -40℃～+50℃
Maximum diurnal temperature difference：≤25℃
2.3 Relative humidity：Daily mean95% monthly average90%
2.4 Maximum wind speed：≤34m/ｓ
2.5 Earthquake intensity：＜8 degree
2.6 Icing thickness: ＜10mm
2.7 Thickness of snow: ＜35mm
2.8 irradiance: ＜0.1W/cm2
2.9 Pollution grade: Ⅲ class, Ⅳ class Ⅲ, Ⅳ
2.10 Installation site: No fire disaster, explosion danger, chemical corrosion, and frequent strenuous vibration places
Working Procedure of 11KV SF6 Gas Load Break Switch
The load switch that uses SF6 gas as insulation and arc extinguishing medium is called the SF6 load switch. It can be used to switch and switch load current and overload current, and it can also be used to switch and switch no-load circuits, no-load transformers, and capacitors. Groups, etc., all three-position load switches with the functions of connecting, disconnecting, and grounding have the characteristics of simple structure and low price. But the load switch cannot disconnect the short-circuit current.
Intended Use of 11KV SF6 Gas Load Break Switch
The SF6 load switch is an excellent load switch that many users have experienced in recent years. In addition to its long electrical life and strong braking force, it has the same advantages as the vacuum load switch. Its outstanding advantage is that it is easy to achieve three working positions (connected, disconnection and grounding), small current (inductance, capacitance) breaking, strong resistance to severe environmental conditions. It is suitable for popularization and application in urban and rural medium voltage distribution networks.
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Video : Roxtec UG - Sealing Substation Cables Underground Against Constant Water Pressure
Roxtec UG Solutions - Cable Entry Seals For Underground Applications The Roxtec UG forms part of the range of cable entry seals from Roxtec and is designed for sealing cable entries in underground applications - this includes LV MV power cables in trefoil arrangement supplying 11kV and 33kV substations.
The Roxtec UG solution provides a long lasting seal against high pressure water ingress and is deal for use on underground cables entering through building, transformer or substation foundations.
The following film includes UK site footage of test installations where water tables were problematic for the utility. A number of different "traditional" seals had all failed over time due to the challenge of installing the seals under "running water" situations.
Roxtec UG prevents flooded substations and the consequential power outages caused by sub-standard cable duct sealing.
