Gas Insulated Switchgear (GIS) are employed in Indoor Transmission Substations and constitute switching devices and Instrument Transformers inside air tight chambers filled with inert gas to achieve the desired dielectric strength in a compact manner.
The Controls of such devices are provided in Panels positioned as close as possible to the GIS. The LCC work in a decentralized strategy with each bay provided with a dedicated Panel. These Panels comprise of the conventional control, measuring and monitoring components with interlocks between the switching devices and also the Bay Control unit (part of the Substation Control & Monitoring System –SCMS) thus allowing back up for ensuring Power flow in a proficient manner.
We take pride in having designed the intricate schemes, manufactured several LCC, devised and created conventional and Programmable Simulator to replicate the GIS for performing tests and checks prior to delivery from our works.
We carry a unique distinction of being an independent approved LCC Manufacturer by Utilities in the region and also partner to all leading international GIS manufacturers.
Technical Specifications
|
Description |
Local Control Cubicle |
|
Form of Construction |
Free Standing , Floor Mounting Door handle – swing type Three point mechanism with Padlock facility with lifting hooks on TOP plate |
|
IEC Standard for the enclosure |
IEC 62208 |
|
Degree of Ingress Protection in accordance with IEC 60529 |
IP54 |
|
Access |
Front for control switches |
|
Shade
|
Exterior – RAL 7032 (texture finish) Interior – RAL9003 (semi glossy) |
|
Paint Thickness |
Average 90 microns |
|
Cubicle Dimensions |
Approx. ( HXWXD) =2400X1200X800 mm/ 2400x1600x800mm/2400X1050X900 mm |
|
Enclosure Sheet Thickness |
2.5 mm |
|
Gland Plate thickness |
2.5 mm or better |
|
Bus bar Material |
Electrolytic grade Tinned copper 99.98 % purity for earth Bus |
|
Protective Earth – Cross section Area |
200 sqmm. |
|
Cable Entry |
Bottom |
|
Mimic |
Plastic, good adhesion sticker type |
|
Terminal Blocks |
Disconnecting type for CT and VT secondary Circuits Non Disconnecting types for AC/ DC and Control Circuits Knife edge terminals for Alarm and SCADA circuits |
|
CT/VT/Control Wiring |
CT secondary Circuits – 2.5 sqmm- R,Y,B , Black VT secondary Circuits – 2.5 sqmm- R, Y , B , Black DC Circuits – 1.5 sqmm Grey AC Circuits – 2.5 sqmm Black Protective Earth – 2.5 sqmm Y/G |
|
Labels |
PVC engraved Labels with Black lettering on White Background of different sizes |
Features& Expertise
- Custom-built panels suited for dynamic operations and provide complex operational safety interlocks, control and monitor GIS
- Optimized solutions for multi-vendor GIS, approved by several utilities
- Design capability for developing logics, scheme diagrams
- Expertly designed PLC-based simulator which replicates as GIS of various manufacturers
- Programs for system interlocks developed for different feeder types as per specific requirements of various Utilities and Manufacturers