Preston University Pakistan Islamabad Campus

Project Name : 132/11.5kv Grid Station Project Submit to : Engr Sir Usman Project Submit by : Muhammad Zeeshan Sohail,

Mahmood-UL-Hassan, Saqib Abbasi , Aamir Abbasi

Project Name: Design, Manufacture, Supply, Erection, Testing, Comissioningand Civil Works at 132-kV Grid Station MES, Rawalpindi

Client: Islamabad Electric Supply Company Limited (IESCO)Street # 40, Sector G-7/4, Islamabad

Consultant: Barqab Consulting Services(Private) Limited Lahore

Contractor: ALSTOM Grid Pakistan (Private) LimitedHouse # 05/B, Abu Bakar Block,New Garden Town, Lahore

Scope of Work: 1). 2 x Line Bays.

2). 2 x 132/11.5-kV, 31.5/40-MVA Power Trafo Bays.

3). 1 x PT Bay

4). Civil Works i.e. Of Switch Yard Area & Control House Building etc

Contract Value: a). Foreign Currency Component USD 1,353,251/-

b). Foreign Currency Component EURO 169,955/-

c). Local Currency Component PKR 92,880,750/-

Briefing Of The Project

List of Out Door Equipment InstalledS.

No. Description/Specification of O/D Equipment Unit Quantity

1 Power Transformer Three Pole 132-kV/11.5-kV, 31.5/40-MVA(Complete With All Accessories). Set 2

2 132-kV, 1600A, Three Pole SF-6 Circuit Breakers(Complete with All Accessories). Set 4

3145 kV, 1600A, 20 kA, Three PoleBus Disconnecting Switches without earthing switch(Complete With All Accessories).

Set 5

4145 kV, 1600A, 20 kA, Three PoleLine Disconnecting Switches with earthing switch(Complete With All Accessories).

Set 2

2132-kV Current Transformers Single PhaseRatio 1200:600:300, 5-5-5-5A(Compete With All Accessories).

Set 6

3132-kV Current Transformers Single PhaseRatio 200:100, 5-5-5A(Compete With All Accessories).

Set 6

4132-kV Potential Transformers Single PhaseRatio 132/1.7321 kV:110/1.7321 Volts(Complete With All Accessories).

Set 3

5 132-kV Gantry & Earth Mast Towers(Complete With All Accessories). Set 7

6 132-kV Beams Structures(Complete With All Accessories). Set 4

7 11-kV Capacitor Bank Having Capacity 7.2-MVAR(Complete with All Accessories). Set 2

8Pad Mounted Auxiliary Transformer11.5-kV/415-Volts, 200-kVA(Complete with All Accesssories)

Set 1

List of Indoor Equipment InstalledS.

No. Description/Specification of I/D Equipment Unit Quantity

1 11-kV Incoming Panels, 2500A(Complete with All Accessories) Set 2

2 11-kV Bus Coupler Panel, 2500A(Complete with All Accessories) Set 1

3 11-kV Outgoing Panels, 630A(Complete with All Accessories) Set 16

4 11-kV Capacitor Outgoing Panels, 630A(Complete with All Accessories) Set 2

5 Relay Panel RP-4(As per WAPDA Specifications). Set 2

6 Relay Panel RP-3(As per WAPDA Specifications). Set 2

7 Control Panel CP-50(As per WAPDA Specifications). Set 2

8 Control Panel CP-30(As per WAPDA Specifications). Set 2

9 Event & Fault Recorder Panel(As per WAPDA Specifications). Set 2

10 AC/DC Auxiliary Panel(As per WAPDA Specifications). Set 1

11 110-VDC, 5-AMPS Battery Charger(As Per WAPDA Specifications). Set 1

12 110-VDC Battery Bank 150-AH(As per WAPDA Specifications). Set 1

List of Civil Related Civil WorksS.

No. Brief Description of Works Completed

1 Construction of 132-kV Switchyard Equipment RCC Foundations.

2 Construction of 132-kV Switchyard RCC Cable Trenches.

3 Construction of PCC Transformer Way & Approach Roads.

4 Construction of Switchyard Fence with Gate.

5 Construction of Boundary of Grid Area With Gate.

6 Construction of Double Storey Control House BuildingComplete with Electrification and Sanitation System.

7 Construction of Security Guard Cabin.

Site Plan

Single Line Diagram of the Project

General Layout

Switch yard Foundation Layout

MES Earthing Layout

Switch Yard Layout (Sections)

Equipment layout in 11kv Switch Room

Control Room Equipment Layout

MES Lighting Layout

O/C and E/F Relay

O/C and E/F Protection Relay

Differential Relay Circuit Diagram

Directional relay Definition.Directional relay is the relay that uses the relationship between voltage and current forming polarization to determine the direction of a fault inside or outside the zone protection. It operates when a fault lies within its zone of protection and not behind where the relay is looking.

Distance Relay

Distance relay,The most common form of protection on high voltage transmission systems is distance relay protection. Power lines have set impedance per kilometer and using this value and comparing voltage and current the distance to a fault can be determined. The ANSI standard device number for a distance relay is 21.It is also called as the impedance relay as it calculates the line fault with the use of the impedance per meter of the transmission line

Capacitor Bank

Switch Yard

The End