L&T completes its product basket with a range of MV switchboards. All medium voltage switchgear, ranging from 3.3kV to 36kV are manufactured, assembled & tested at L&T’s advanced Switchgear Works – the Works are equipped with a SF6 gas handling laboratory. All the operations & processes implemented at our Works are in accordance with international norms. Our medium voltage switchgear range includes fixed or withdrawable Air Insulated Switchgear from voltage level of 3.3 kV to 36 kV, Gas insulated Switchgear from 12kV to 36kV & Ring Main Unit.
L&T’s medium voltage switchgear assemblies are designed from 3.3 to 36 kV. All these are designed for indoor application considering customers’ space constraints. The VH-AIS range of switchgear has a metal clad design, and its robust construction ensures it functions well even in adverse environment conditions. We give you a choice of fixed or withdrawable Vacuum Circuit Breakers in the assembly. Switchgear Assemblies, Breakers, Contactors are designed & manufactured according to IEC 62271 series. We assure compact size of assembly without compromising safety features. Protection against 40kA for 3 seconds can be delivered in a design as compact as 600mm.
The Type GR-1 RMU is designed with a combination of innovation and state-of-art insulation principles & current interruption techniques. GR1 is available for 12kV which can withstand 20kA for 3 seconds. This outdoor design is safe to operate with the help of mimic diagram & position indicators to guide operators. All passive interlocks, comprehensive padlocks are designed for user friendly operations and are safe.
Gas insulated switchgear assemblies are gaining importance because of the innate advantage of compactness. Inert, non-flammable SF6 provides three time stronger insulation than air; hence using it as an insulation medium allows for drastic reduction of size and space for high voltage switchgear assemblies. Our GV3 series gas insulated switchgear has a sealed tank design suitable for polluted environments, additionally it requires minimum maintenance. GV3 series switchboards are easy to install & fully extensible at site.