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SR. NO.

CLIENT / SERVICES

TYPE OF JOB

Indo Rama Synthetics (I) Ltd., Nagpur.

Consultancy Service for Relay Setting, Relay Co-ordination and Grid Islanding & Load Shedding Scheme engineering for 2 x 15.0 MW Captive Co-generation Thermal Power Plant, 3 x 13.5 MW + 3 x 4 MW DG Power Plants and Grid System at our Plant Butibori, Nagpur.

The scope includes,

a)    Relay Setting and Relay Co-ordination study for electrical distribution system.

       i)    Short Circuit study.

       ii)   Protection Review.

       iii)  Relay Setting and Relay Co-ordination.

       iv)  Working out Unit Protection Settings.

b)    Grid Islanding and Load Shedding Scheme.

       i)    Load flow study.

       ii)   Transient stability study.

       iii)   Engineering of Grid Islanding and Load Shedding Scheme.

       iv)   Working out Relay setting for Grid islanding and Load Shedding Scheme.

Kamal Engineering Consultants, Dubai.

Carrying out Relay Setting, Relay Co-ordination and harmonic analysis for District Cooling plant project.

ACC Ltd, Wadi unit

Our Scope of work includes carrying out Relay Setting, Relay Co-ordination for Existing Wadi Plant, New Wadi Plant and CPP as follows :

a)     Short Circuit Study.

b)     Relay Co-ordination study. 

c)     Working out Unit Protection Settings.

Deepak Fertilizers and Petrochemicals Corp.Ltd.,Taloja.

Power System Study for the electrical system including :

a)  Transient stability study.

b)  Engineering of Grid Islanding and Load Shedding Scheme.

c)  Preparation of purchase specification for grid Islanding and Load Shedding
     Components / hardware.

d)  Relay settings of Grid Islanding and Load shedding protection.

PT. Indorama Synthetics Tbk, Polyester Division, Indonesia.

Power System Study for the electrical system including :

a)   Load flow study.

b)   Short circuit study.

c)   Relay setting and relay co-ordination study.

GRASIM INDUSTRIES LTD, (CHEMICAL DIVISION.), Nagda

Power System Study for the electrical system including :

a)   Load Flow Study

b)   Short Circuit Study

c)   Relay Setting and Relay Co-ordination Study

ESSAR STEEL  LTD., Vishakhapatnam

Study of Capacitor banks & Unit Protections,

a)   Carrying out Load Flow Studies for sizing of Capacitor banks and identifying their

      locations

b)   Working out Unit Protection Settings for HT and LT motors.

JINDAL STEEL & POWER LTD., Raigarh

Relay Setting and Relay Co-ordination study for RUBM plant and 148” Plate Mill plant electrical distribution system. This includes,

a)   Short Circuit Study.

b)   Relay Co-ordination study. 

c)   Working out Unit Protection Settings.

JINDAL STEEL & POWER LTD., Raigarh

Study of dynamic switching of HT Motors.  

JINDAL STEEL & POWER LTD., Raigarh

Feasibility Study of Power evacuation from 4 x 135 MW Captive Power Plant at Dongamohua, Tamnar, Dist : Raigarh. This includes,

a)   Feasibility Study for evacuation of power from 4 x 135 MW Captive Power
      Plant at Dongamohua, Tamnar, Raigarh to JSPL New switchyard for 3 MT steel
      plant.

b)   Load flow study  & Short circuit study for Option-1, i.e. for 4 x 135 MW CPP to JPL

      220 kV switchyard and JPL 220 kV switchyard to JSPL new 220 kV switchyard.

c)   Load flow study & Short circuit study for Option-2, i.e. for 4 x 135 MW CPP to new

      220 kV switchyard at JPSL.  

Restricted Neutral Earthing study. This includes,

a)   Design the Grounding arrangement for 415Vsystem.   

b)   Review of existing electrical equipment in the electrical system for satisfactory
      operation in conjunction with the modified earthing system.   

c)   Define the design parameters and detailed technical specifications for Neutral
     Grounding Resistors for procurement and installation.

d)  Design of protective relaying system with specification of equipment such as
     current transformers, potential transformers, protection relays.

e)  Relay Setting and Relay Co-ordination for existing protective relays.  

Jindal Steel and Power Ltd.

Raigarh, Chattisgarh

Power System Study for the electrical system including :

a. Load flow study

b. Short circuit study

c. Transient stability study in case of

    i. Tripping of 220kV incoming CSEB lines at JSPL.

    ii. Tripping of 250MW TG set at JPL.

d. Engineering an islanding scheme.

e. Engineering a load shedding scheme under following conditions

    i. Tripping of 220kV CSEB lines at JSPL.

    ii. Tripping of 250MW set at JPL.

f. Working out the settings for islanding relays and the load shedding blocks, for

   following conditions,

    i. Tripping of 220kV CSEB lines at JSPL.

    ii. Tripping of 250MW set at JPL.

g. Working out over current and earth fault relay settings for,

     i.  220kV line from JPL to OPJIP.

     ii. 220kV line from OPJIP to JSPL.

     iii. 220kV interconnection, i.e. power evacuation route from receipt of JPL
         power at JSPL to CSEB lines.

     iv. JSPL TG sets power evacuation route up to 220kV bus.

h. Working out voltage and frequency relay settings for following,

     i.  220kV line from JPL to OPJIP.

     ii. 220kV line from OPJIP to JSPL.

     iii. 220kV interconnection, i.e. power evacuation route from receipt of JPL
         power at JSPL to CSEB lines.

     iv. JSPL TG sets power evacuation route up to 220kV bus.

Jindal Stainless Ltd.

Jajpur, Orissa

Power System Study for the electrical system including :

a. Prepare and submit key single line diagram (220 kV) relevant to the protection
    system for the following two options:

    i. Augmentation of existing yard keeping the 220 kV switchyard at the original
       position and

    ii. Construction of new 220 kV switchyard at suitable location.

b. Carry out the load flow study to identify the basic rating of the equipments and to
    check the feasibility of the two options technically and commercially.

c. Work out Voltage & Frequency profile at load centers for the two options under

    i.  Steady state condition &

    ii. Dynamic condition of the load.

d. Carry out Short circuit study for three phase faults and phase to earth faults for the
    limited system under study.

e. Define basic rating of the major equipments such as :

    i. Transformers

    ii. Cables

f.  Examine suitability of equipments already in service from view point of current
    carrying and short circuit withstand capacity.

g. Stability studies to be carried out for following conditions:

    i.  Load flow studies for different grid and captive generators operating conditions.

    ii. The effect of dynamic loads of SAF, EAF and rolling mills on the grid and Captive
        generators under different operating conditions.

    iii. The operations of the plant with / without GRID and with different numbers of
        captive generators under different operation condition of the plant.

h. Carrying out following power system studies to develop the application of Grid
    islanding scheme (GIS) and load shedding scheme (LSS).

    i. Transient stability study.

    ii. Study to evaluate critical clearance time for fault at 220 kV Gridco Bus, 33 kV
        MRS Bus and other 33 / 6.6 kV bus.

i.  Engineer a Grid islanding scheme for isolating the in-house Captive Power Plant
    from disturbance in Gridco.

j.  Engineer a Load Shedding Scheme, to ensure the survival of CPP on survived
    (balance) load.  This load Shedding Scheme shall be PLC based OR back up under
    frequency based or both.

k. Prepare and submit, purchase specification for GIS and LSS panel.  Assist JSL in
    scrutinizing the offers received from Vendors technically.  Forward the
    recommendation for selected vendor after obtaining various clarifications from
    vendor.

l.   Review of vendor drawings for GIS and LSS panel

m. Relay setting for GIS and LSS scheme relays and relay setting and co-ordination
     for the equipment on power evacuation route