Life @ Larsen & Toubro Construction

Hello Dosto,Mitro Bhaio nd Behno...:)

                     Today finally got some time to share my experience @ L&T Construction as a "fresher"...

                     Generally the Campuses start from our 7th sem onwards only...So its very important to clear ur ATKT's b4 them + U will need some "BUTTERING SKILLS" for clearing PI's also for any company..

                     1 such company was L&T that came to our campus in 7th semester.. Firstly i cleared the written exam(By luck ;)) then went for an interview @ Baroda . There after clearing the PI i got an letter of appointment @ Powai campus.

                     Before 20 days of joining powai campus they told me to report @ chennai campus which came as a shock for me as i had already prepared for powai campus!! We called up L&T & they always said only one line "DON'T WORRY L&T WILL TAKE CARE OF U".. so jst believing this one line & L&T i went to Chennai By flight nd reached the hotel they booked for all of us..

After reaching hotel we realised that L&T has kept its word of "TAKING CARE". such rooms were booked for us..

                     They were fully AC rooms wid early breakfasts complimentary + free transport to office <=> hotel in buses or cars was also provided for some period of time.. We all had a great Tym during our stay in hotels..
                     NOW!! All orientation nd all completed we were alloted our department nd divisions & units nd their respective locations.. some of them were shifted to site of some other locations while i had to stay in Chennai only...
                     I m in Enginnering Design & Research Centre(EDRC), Chennai HQ..exactly speaking I m in Power transmission & distribution unit & my work is in Testing & Commissioning team for all instrumentation side work on any site. It includes testing of field instruments + PLC+DCS+SCADA+HMI etc... So work wise m satisfied.. 

NOTE:-U R NOT GIVEN ANY CHOICE/PREFERENCE OF DEPT OR LOCATION SO ITS UR LUCK AS ITS A VERY HUGE COMPANY SO B READY TO WORK IN ANY DEPT OR ANY LOCATION & L&T CONSTRUCTION TAKES ALL UR ORIGINAL DOCS FOR BOND PERIOD.

                     The office starts @ 9am nd its good to have some frndly seniors as they all joined same as u GET's so u can njoy coffee nd tea @ any point of tymin office.. as a GET u r provided full freedom for tympass..:)  no responsibilities nothing much it all depends on ur interests ..we have lunch together nd @ 5:30 everyday some new snacks r provided on ur table so u can have lot of different snacks everyday before leaving office.. the tyming for leaving office r not sure.. u can decide it upon ur boss mood (as i do).:P

                     I given stay @ a house where all other GET's share... I know u will be excited to know how this new place it is.. is it d same as earlier??  NOOOOOO!!!!! all dreams came crashing when i came to room the first day... as all r young none cares of any cleanliness or anything.. The drainage was not working properly!! The fan was not operating @ appropriate speed!! & the most horrible scene when i saw my BED!! THERE WAS NO MATTRESS NOR PILLOW nothing!!! 

                     Some how i m still managing to sleep without matress as the market is away & no tym.. getting some dinner packets daily..Njoying the rainy season here.. The office atmosphere is good the bosses r good.. they r supportive nd helping...slowly & gradually getting set in this TAMIL environment of "lunghi" nd "mogre ka gajra's" ;) :) :D....

BUT!! BUT!! BUT!! how can u forget that a testing & commissioning engineer has nothing to do in office!!!! he has to go to site to inspect!!! so they sent me for some testing experience @ IIT,MADRAS for an instrument that came from spain.. it lasted for 2 days.. nd believe me wearing formals @ site jst makes u more frustrated.!!!
                     Any how did all testings nd cam to office made sm reports etc.. nd now again a new place to go for testing.. this tym going to TATA STEEL,JAMSHEDPUR for sm months till it gets over...

So now will visit site.. Experience it & then again share wid u all as soon as possible...:)

MORAL & SUMMARY: 

                     L&T is a very good company to start off with it will be paying u good amount + u can have hands on experience on all the things without worrying of any damage respo..:P it provides all monetary support for ur accommodation & transport etc... BUT as u r not given any preference or chance there r possiblites that u will b given some place where there is no relevant work or experience for u (Such can be handled if u have some Jack on some higher posts then its possible)....

At L&T its all about "Imagineering"

Hello friends…!!

Here I want to share my corporate life’s experience with all of you.

         At earlier I was selected by L&T in campus interview of our college. There was very wonderful experience in my interview also. At the end of the 8^th semester company send me joining letter. I was very excited because my joining place was Mumbai.

         On 13^th July I had to report at Mumbai office. Before one day prior to joining I was reach there for accommodation purpose. L&T have their own building with all pleasing facilities like gymnasium, common dining room, indoor as well as out door games facilitation, common TV room(where we all are fighting  to switch the channel we fond...but when any cricket match is there then we enjoy together!!!).

At the first day of my job when I came at L&T-Powai (Mumbai)  campus it was great pleasure to my self its about 100 acres campus with all facility like canteen , bank , sports club, library(which is biggest library in corporate world) etc. My first day was passed in documentation process. After that day our training program was started called “PRAYAG”. I think that it was longest training program in any company. Students from different states were there. We were divided in various groups. We had to do various group activities during this period viz. Roll plays, mimicry, technical presentation, poster making etc. There were also experts lecture are held (very boring as usual!!).

         Now about L&T…there are total nine independent companies (IC) under the umbrella of L&T like

   1)  Heavy Engineering Department (HED) - in it various types of job work is done like manufacturing of heavy pressure vessels, boiler, modular plant for oil & gas industries. These manufacturing units are situated at Hazira (600acres) campus, Katupalli-Chennai(1100acres) campus, and also at in gulf countries like Abu Dhabi, Oman, Sharjah etc. L&T defense is also under this department which is pioneer in making of submarine (INS Arihant) missiles (Brahmosh, Pinaka etc.) for Indian Defense and space satellite (PSLV) etc. for ISRO.

   2)  Hydro Carbon- I am also working in this department in mid & down stream. In this department we have to build various refinery(Reliance Jamnagar, IOCL Panipat, ONGC  mangla-Rajasthan), fertilizer plant(GNFC Bharuch, NFL Panipat) all are build by L&T. Mumbai High is floating platform to explore oil from see is built by L&T.

   3)   Electrical & Automation – various types of switch gear, protection circuit is build in this department.

   4)   Metallurgy and Material handling IC – control valve, mining equipment like excavator (L&T Komatsu)   Large trucks (Scania) are manufactured under this dept.

   5)   L&T construction -most profitable business of L&T which is working on different project like Mumbai Mono rail, Delhi Metro, Highway and road project etc.

   6)   L&T  InfoTech – IT division of L&T

   7)   L&T MHI (Mitsubishi Heavy Engineering )

   8)   Tractor Engineering Ltd.

   9)   Rubber Processing Machinery

         Now a days I am working in the Hydrocarbon mid & down stream department and working on a refinery project of SARB at Abu Dhabi with collaboration to GS, Korea (Hydrocarbon unit of LG electronics).

  Regards,

 Anilkumar G. Shah

    

                                                                                                                                                       

R&D Block / Ground Floor / Gate No. 01 Powai, Mumbai - 400 072    

 Email:Anilkumar_Shah@Lntenc.com

PLC Programing Refresher

Here is the pdf file for refreshing PLC programing concepts in brief.

Credits : - Shreyansh Jayani

Do subscribe or follow us to get latest updates regarding such topics...
PLC Programming Refresher

Differentiate:-Relay, Contactor and Circuit Breaker

                  Relay and contactor have the same function, to close a circuit with a logic signal (applied to the coil). Circuit Breaker has another main function, to protect a circuit for over currents. In most cases, the breakers are operated manually. The relays and contactors are not operated manually. Relays are used in circuits to close a single circuit, contactors to close a three phases circuit (motors).

                  Relays and contactors are control elements, i.e. you control the current (On/Off) in the attached device with a control signal. Normally, relays are for low power applications (voltage x current) while contactors are for higher voltages and currents. You might see components called "Contactor Relays" which in fact are contactors for control applications. 

                  Circuit Breakers are protection elements. They protect the downstream connected devices from overload current, short circuit current, leakage current.. There are also several types of Circuit Breakers: Miniature CB (which you have at your appartment in the power distribution board. There are also Molded Case CB's and Air Circuit Breakers.. and so on to Medium and High voltage breakers.

Most circuit breakers are thermal devices that when excess current run through them they heat up and trip (open up).They can also be used as a switch to open a circuit.A contactor is a electric relay that is essentially a solenoid and a pair of electrical contacts. The solenoid is activated and it closes the contacts 

Relay is the device acttached to any circuit which makes it work automatically.it has less operating voltage but in contactor it works on the principle of cantact making that either single phase voltage or 110v ac supply , the plunger makes the other three phase contact and thus operates on some high operating voltage

Contactor is a switching device. Unless & until you give command it wont operate. Contactor is not a sensing device. on the other hand Relay is the device which sense the abnormality & give command accordingly. Relay differentiate normal & abnormal condition which contactor can not.In short if only contactor is connected in circuit.. in case of abnormal like OV or OC it will burn.. but if it is connected in coordination with relay.. relay will sense the fault & give signal or command to contactor to trip  

Relays and Contactors are electromagnetic switches. The only difference is that relays are usually used for low voltage applications while contactors are used for higher voltage application. Contactors usually have Overload protection.

Some examples :-

Relays are use as electromagnetic switches to control certain parts of a circuit (low voltage application). A better example would be such as if you want your circuit to sound a horn when a certain abnormality is happening at a certain period of time, then depending how you set up your circuit, a specific relay will either open or close and you horn will start making the sound. -Contactors can be used for example, to start motors or a number of motors that require a higher voltage in order for the motor or motors start working. In the example that I just gave, contactors work as starters. 

The first question should be the LOAD conditions to determine which component to use - relay, contactor or breaker - and the function of the product. 

-Relays are somewhat limited to the load characteristics. 
-Contactors in simple terms are just BIG relays able to handle larger loads. 
-Breakers are a safety device, when load conditions exceed contact capability and the breaker "opens". 

                                                                    RELAY

                  

                      4 Channel Relay Card 

                                Contactors

 
                                              Siemens Contactors

                           
                          Circuit Breakers