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History
Larsen & Toubro Limited is the biggest legacy of two Danish Engineers, who built a world-class organization that is professionally managed and a leader in India's engineering and construction industry. It was the business of cement that brought the young Mr. H.H Larsen and Mr. S.K. Toubro into India. They arrived on Indian shores as representatives of the Danish engineering firm F L Smidth & Co in connection with the merger of cement companies that later grouped into the Associated Cement Companies.
Together, Mr. Larsen and Mr. Toubro founded the partnership firm of L&T in 1938, which was converted into a limited company on February 7, 1946. Today, this has metamorphosed into one of India's biggest success stories. The company has grown from humble origins to a large conglomerate spanning engineering and construction. ECC was conceived as Engineering Construction Corporation Limited in April 1944 and was incorporated as wholly owned subsidiary of Larsen & Toubro Limited. L&T's founders Mr. Larsen and Mr. Toubro laid the foundation for ECC. It has today emerged as India's leading construction organization.
PRESENT STATUS
Larsen & Toubro Limited (L&T) is an Indian multinational conglomerate company headquartered in Mumbai, India. The company has four main business sectors: technology, engineering, construction and manufacturing.
L&T has an international presence, with a global spread of offices and factories, further supplemented by a comprehensive marketing and distribution network. The firm has more than 60 units in some 25 countries. Domestic business within India dominates, but the company is steadily growing its global operations with a focus on China and the Middle East.
Various Operating Divisions
1. Engineering and Construction Projects
2. L&T Power
3. Heavy engineering
4. Construction
5. Electrical and electronics
6. Information technology
7. Machinery and industrial products
ABOUT L&T-S&L
L&T-Sargent & Lundy (L&T-S&L), incorporated in May 1995, is an equally capitalized joint venture company of Larsen & Toubro Limited, India and Sargent & Lundy USA. L&T-S&L are committed to providing complete power plant engineering services to its customers.
L&T-S&L is an ISO 9001:2000 certified company which received its certification in December 1998 which was recertified in 2005. L&T-S&L Faridabad is also certified. Sargent & Lundy provides complete consulting, engineering and project development services for all types of fossil fuel power generation and power delivery projects. Its record of accomplishments includes the design of close to 1000 power plants totaling over 122000 MW for clients worldwide.
1. L&T FARIDABAD CAMPUS POWER DISTRIBUTION
1.1 Introduction:
L&T Faridabad campus receives its main power supply from Haryana State Electricity Board (HSEB). An 11kV supply is fed to L&T campus by means of overhead lines. In L&T mode of transmission is underground cables. This 11kV supply is fed to Vacuum Circuit Breakers’ (VCB) panel. There are 2 panels each for the 2 transformers. There is another panel which is the main supply panel which is used for the protection in case any circuit breaker fails to trip.
The output from the VCB’s set panel is then fed to the transformer’s primary. There are 2 transformers in the L&T Faridabad campus. One is of 1500kVA and other is of 1000kVA. These transformers step down the 11kV supply to 420 and 433 V each. The secondary is connected to L.T panels by the means of non segregated bus ducts. These L.T panels consist of various feeders which fed the stepped down voltage according to the requirements. The top section of these panels houses the horizontal busbar assembly and lower section consists of various relays and circuit breakers for protection purposes. The circuit breakers used in the L.T panels are Air Circuit Breakers and/or Molded Case Circuit Breaker.
As supply from the board cannot be constant thus, 5 Diesel Generators are used in L&T Faridabad campus to provide emergency power backup. Out of these 5 Diesel Generator 3 are of 625kVA each, 1 is of 635kVA and 1 is of 320kVA. The last DG is always on standby for feeding the UPS of computers used in the main building and the servers. This is done so to ensure that no data loss occurs during the power cuts. The other DGs are both auto and manual driven.