WEL - COME

TOTHE SEMINAR HALL

OFGOVT. ENGINEERING COLLEGE, BIKANER

A PRACTICAL TRAININGAT

NIMBAHERASubmitted By: Submitted to:

Lalit Kumar Upadhyay Mr.Manoj Chimpa

INTRODUCTION TO JK"J.K." stands for a father- son team, namely: Juggilal Kamlapath Singhania . J.K. organization started in the year 1884 at Calcutta. J.K. started their business as trading Supplier of cotton belts and manufacturer of small machinery parts.In the year 1974 under the same division one more unit was started for manufacturing of Grey Cement at Nimbahera.

Cement Plant

Power Plant

Market Reach

Gotan - Nagaur (Rajasthan) 0.47 MTPA# :Grey Cement 0.40 MTPA* :White Cement 0.3 MTPA: Wall Putty 7.5 MW: Thermal Power Plant

Nimbahera – Chittorgarh (Rajasthan) 3.2 MTPA : Grey Cement 20 MW:Thermal Power Plant 13 MW: Waste Heat Recovery 15 MW (Bamania): Thermal Plant

Mangrol - Chittorgarh (Rajasthan) 0.75 MTPA - Grey Cement

Muddapur - Bagalkot (Karnataka) 3 MTPA: Grey Cement 50 MW: Thermal Power Plant

Pan-India market reach in white cement & presence in 13 states for grey cement. 105.5MW of captive power and abundant limestone reserves

Existing Plant locations and Market Reach

POWER DISTRIBUTION IN A CEMENT PLANT

Electrical energy to the cement plant is supplied by electricity board and by own generation plant.Different Voltage requirements are based on loadHT load (11 or 6.6 or 3.3 kV) for Raw/Cement Mill main drives, Big Hammer crushers. It Generally consists of slip ring induction motors of rating form 500kW to 5000kW.LT load i.e. Various Auxiliaries related to Kiln/Raw mill / cement Mill/Packing plants/crushers/ plant lighting etc. it also consists of variable speed drive and DC drive which are fed via converters/rectifiers

POWER PLANTS OF JK WORKSJK CEMENT LTD. have some Power Plants at different places.Thermal Power Plant Nimbahera

.Waste heat recovery plant Nimbahera

Main Component of 132 or 220 KV Switchyard

Lightening arrester – It protects electrical equipment against the lightening / switching over voltages.It consist of a spark gap in series with

a non linear resistor. One end of the

diverter is connected to the terminal of the

equipment and the other end is effectively

grounded. The length of the gap is set so

that normal voltage is not enough to cause

an arc but a tremendously high voltage will

breakdown the air insulation and form an arc.

Potential or voltage transformer – it provides mirror image of the actual voltage for measurement and/or protection purposes. It is also used for energy monitoring purpose.

Current transformer - similar to the PT, current transformers provides mirror image of the current drawn by the system. It is used for measurement / protection of the systems.

Circuit breaker – it is used for Switching ON/OFF function of the circuit at load/no load and also having capacity to break the circuit at very high current at the time of fault (if any) in the system. Depending upon arc quenching media different type of circuit breaker are used.

Air Blast Circuit Breaker SF6 Gas Circuit Breaker

Power Transformer – it is very vital equipment in power distribution network and converts EHT supply into desired (as designed) voltage level.

Circuit Diagram 500 MVA Power Transformer

Parts of Transformers

Main Oil Tank

Conservator

Buchholz Relay

Radiator

Radiator Fan

Oil Gauge

Silica Gel Breather

HV Bushing and LV Bushing

CAPACITOR BANKCAPACITOR BANK USED IN TWO MAIN SITUATIONS :•CONNECTED TO POWER SYSTEMS TO REGULATE TRANSMISSION VOLTAGE.•CONNECTED NEAR LARGE INDUSTRIAL LOADS TO IMPROVE POWER FACTOR.

ISOLATORS Isolators are use to disconnect a particular branch or operation area from supply.

INSULATORS

PIN TYPE

SUSPENSION TYPE

Relays and control panel – it may be treated as brain of EHT yard. Consists of various metering equipments, protection relays, Mimic diagram (Isolator , CB ON/OFF status). It also has provision of ON/OFF push button/ switch for circuit breaker.

Types of Relays:- Over voltage relayOver current relayEarth fault relayDirection relayDifferential relay

Thank you