CABLE SIZING CALCULATION

COVERSHEETTCE-M2-EL-CA-D-2160TCE CONSULTING ENGINEERS LIMITEDSECTION: TITLECABLE SIZING CALCULATIONSSHEET i OF iBHAVANAGAR ENERGY COMPANY LIMITED, BHAVANAGAR2 X 250 MW TPPCABLE SIZING CALCULATIONSFILE NAME.: M2-2160.XLSREV. NOR0R1R2R3ISSUEINITIALSSIGNINITIALSSIGNINITIALSSIGNINITIALSSIGNPPD. BYKYP-SD/--SD/-CKD. BYGBK-SD/--SD/-APP. BYSVSP-SD/--SD/-DATE22.07.2010

&R&10TCE FORM 020 R0

12.0 MVAByKYPProject2 X 250 MW TPPDate22.07.2010TATA CONSULTING ENGINEERS LIMITEDDoc No.Chkd.GBKClientBECL, BHAVANAGARSubjectCABLE SIZINGDateJob No. 5403AOffice DBDept.ELSh. No.1.0of2.0Rev. No.0.0CABLE SIZING CALCULATION (6.6 kV H.V SIDE)1.0FEEDER DATAREMARKS1.1Incoming / Outgoing & DesignationIncoming1.2Rating, 3 PHkVA12000.01.3VoltagekV6.6001.4Power Factor (p.f)0.81.5Efficiency (Effy)0.91.6Type of EarthingEarthed / UnearthedSolidly Earthed.1.7(a) Current IFLkVA(Amp.)1049.733 * kV(b) Current IFL kW (Motor)(Amp.)3 * kV * Effy. * p.f1.8Type of Protection (CB / Fuse / MCB / MCCB)CB1.9(a) 3 Phase - Fault Current (Ish)kA40.0(b) Fault Clearing Time (t)( Secs)0.5Refer TCE design guide1.10Estimated Length (L)m500.01.11Permissible Voltage drop (a) Running%5.0(b) Starting%15.02.0LAYING CONDITIONSTray/BuriedDuctDeratingRefer cableTrench/inFactorcatalogue.Airground2.1Ambient TemperatureDeg. C45.00.862.2Grouping / Spacing with other cables1.02.3Thermal ResistivityDeg.C cm /W200.01.002.4Depth of Burialmm750.01.002.5Overall Derating FactorODF0.8603.0TYPE OF CABLE TO BE USEDValue of k (Amp./ sq.mm)(To be Marked)Al (Cond.)Cu (Cond.)3.1PVC75.0112.03.2XLPE (a) 22 / 33 kV94.0140.0(b) 11 kV94.0140.0(c) 6.6 kV94.0140.03.3(d) 415V94.0140.04.0CABLE SIZING4.1Based on Full Load Current1220.61(a) Cable rating required (I / ODF)Amp.(b) Cable for above ratingTypeSize (Sq.mm.)No.of runsXLPE 1 CORE800.02.04.2Based on Short Circuit Current (For breaker protected feeders only)300.897(a)Sq. mm(b)For Contactor Controlled Feeder (HT only) I2t of cable chosen shall be 1.5*I2t of associated fuseSq. mm-4.3Estimated Cable SizeSq. mm400.0( Higher of 4.1 & 4.2 )5.0CHECK FOR VOLTAGE DROP5.1Cable SizeSq. mm800.05.2R (at cond. temp)ohm/ph./kM0.047Xohm/ph./kM0.091Load Angle36.865.3% Drop0.6355.4% Drop4.572(Refer Note - 1 below)5.5Is the voltage drop within permissible limits? (If not select higher size of cable and check for voltage drop)Yes / NoYES5.6Cable Size considering Voltage DropSq. mm800.06.0RECOMMENDED CABLE SIZETypeSize (Sq.mm)No. of Runs(Higher of 4.3 and 5.6)XLPE 1 CORE800.02.0NOTE:1) Load angle shall correspond to starting condition of Motor.

2.5 MVAByKYPProject2 X 250 MW TPPDate22.07.2010TATA CONSULTING ENGINEERS LIMITEDDoc No.Chkd.GBKClientBECL, BHAVANAGARSubjectCABLE SIZINGDateJob No. 5403AOffice DBDept.ELSh. No.1.0of2.0Rev. No.0.0CABLE SIZING CALCULATION (6.6 kV H.V SIDE)1.0FEEDER DATAREMARKS1.1Incoming / Outgoing & DesignationIncoming1.2Rating, 3 PHkVA2500.01.3VoltagekV6.6001.4Power Factor (p.f)0.81.5Efficiency (Effy)0.91.6Type of EarthingEarthed / UnearthedSolidly Earthed.1.7(a) Current IFLkVA(Amp.)218.693 * kV(b) Current IFL kW (Motor)(Amp.)3 * kV * Effy. * p.f1.8Type of Protection (CB / Fuse / MCB / MCCB)CB1.9(a) 3 Phase - Fault Current (Ish)kA40.0(b) Fault Clearing Time (t)( Secs)0.16Refer TCE design guide1.10Estimated Length (L)m50.01.11Permissible Voltage drop (a) Running%5.0(b) Starting%15.02.0LAYING CONDITIONSTray/BuriedDuctDeratingRefer cableTrench/inFactorcatalogue.Airground2.1Ambient TemperatureDeg. C45.00.862.2Grouping / Spacing with other cables1.02.3Thermal ResistivityDeg.C cm /W200.01.002.4Depth of Burialmm750.01.002.5Overall Derating FactorODF0.8603.0TYPE OF CABLE TO BE USEDValue of k (Amp./ sq.mm)(To be Marked)Al (Cond.)Cu (Cond.)3.1PVC75.0112.03.2XLPE (a) 22 / 33 kV94.0140.0(b) 11 kV94.0140.0(c) 6.6 kV94.0140.03.3(d) 415V94.0140.04.0CABLE SIZING4.1Based on Full Load Current254.29(a) Cable rating required (I / ODF)Amp.(b) Cable for above ratingTypeSize (Sq.mm.)No.of runsXLPE 3 CORE185.01.04.2Based on Short Circuit Current (For breaker protected feeders only)170.213(a)Sq. mm(b)For Contactor Controlled Feeder (HT only) I2t of cable chosen shall be 1.5*I2t of associated fuseSq. mm-4.3Estimated Cable SizeSq. mm185.0( Higher of 4.1 & 4.2 )5.0CHECK FOR VOLTAGE DROP5.1Cable SizeSq. mm185.05.2R (at cond. temp)ohm/ph./kM0.21Xohm/ph./kM0.0969Load Angle36.865.3% Drop0.0655.4% Drop-(Refer Note - 1 below)5.5Is the voltage drop within permissible limits? (If not select higher size of cable and check for voltage drop)Yes / NoYES5.6Cable Size considering Voltage DropSq. mm185.06.0RECOMMENDED CABLE SIZETypeSize (Sq.mm)No. of Runs(Higher of 4.3 and 5.6)XLPE 3 CORE185.01.0NOTE:1) Load angle shall correspond to starting condition of Motor.

CWPH MotorByKYPProject2 X 250 MW TPPDate22.07.2010TATA CONSULTING ENGINEERS LIMITEDDoc No.Chkd.GBKClientBECL, BHAVANAGARSubjectCABLE SIZINGDateJob No. 5403AOffice DBDept.ELSh. No.1.0of2.0Rev. No.0.0CABLE SIZING CALCULATION (6.6 kV H.V SIDE)1.0FEEDER DATAREMARKS1.1Incoming / Outgoing & DesignationIncoming1.2Rating, 3 PHkW1500.01.3VoltagekV6.6001.4Power Factor (p.f)0.851.5Efficiency (Effy)0.951.6Type of EarthingEarthed / UnearthedSolidly Earthed.1.7(a) Current IFLkVA(Amp.)3 * kV(b) Current IFL kW (Motor)(Amp.)162.503 * kV * Effy. * p.f1.8Type of Protection (CB / Fuse / MCB / MCCB)CB1.9(a) 3 Phase - Fault Current (Ish)kA40.0(b) Fault Clearing Time (t)( Secs)0.16Refer TCE design guide1.10Estimated Length (L)m50.01.11Permissible Voltage drop (a) Running%5.0(b) Starting%15.02.0LAYING CONDITIONSTray/BuriedDuctDeratingRefer cableTrench/inFactorcatalogue.Airground2.1Ambient TemperatureDeg. C45.00.862.2Grouping / Spacing with other cables1.02.3Thermal ResistivityDeg.C cm /W200.01.002.4Depth of Burialmm750.01.002.5Overall Derating FactorODF0.8603.0TYPE OF CABLE TO BE USEDValue of k (Amp./ sq.mm)(To be Marked)Al (Cond.)Cu (Cond.)3.1PVC75.0112.03.2XLPE (a) 22 / 33 kV94.0140.0(b) 11 kV94.0140.0(c) 6.6 kV94.0140.03.3(d) 415V94.0140.04.0CABLE SIZING4.1Based on Full Load Current188.95(a) Cable rating required (I / ODF)Amp.(b) Cable for above ratingTypeSize (Sq.mm.)No.of runsXLPE 3 CORE95.01.04.2Based on Short Circuit Current (For breaker protected feeders only)170.213(a)Sq. mm(b)For Contactor Controlled Feeder (HT only) I2t of cable chosen shall be 1.5*I2t of associated fuseSq. mm-4.3Estimated Cable SizeSq. mm185.0( Higher of 4.1 & 4.2 )5.0CHECK FOR VOLTAGE DROP5.1Cable SizeSq. mm185.05.2R (at cond. temp)ohm/ph./kM0.21Xohm/ph./kM0.089Load Angle36.865.3% Drop0.0475.4% Drop0.340(Refer Note - 1 below)5.5Is the voltage drop within permissible limits? (If not select higher size of cable and check for voltage drop)Yes / NoYES5.6Cable Size considering Voltage DropSq. mm185.06.0RECOMMENDED CABLE SIZETypeSize (Sq.mm)No. of Runs(Higher of 4.3 and 5.6)XLPE 3 CORE185.03.0NOTE:1) Load angle shall correspond to starting condition of Motor.

Blow Down MotorByKYPProject2 X 250 MW TPPDate22.07.2010TATA CONSULTING ENGINEERS LIMITEDDoc No.Chkd.GBKClientBECL, BHAVANAGARSubjectCABLE SIZINGDateJob No. 5403AOffice DBDept.ELSh. No.1.0of2.0Rev. No.0.0CABLE SIZING CALCULATION (6.6 kV H.V SIDE)1.0FEEDER DATAREMARKS1.1Incoming / Outgoing & DesignationIncoming1.2Rating, 3 PHkW350.01.3VoltagekV6.6001.4Power Factor (p.f)0.851.5Efficiency (Effy)0.951.6Type of EarthingEarthed / UnearthedSolidly Earthed.1.7(a) Current IFLkVA(Amp.)3 * kV(b) Current IFL kW (Motor)(Amp.)37.923 * kV * Effy. * p.f1.8Type of Protection (CB / Fuse / MCB / MCCB)CB1.9(a) 3 Phase - Fault Current (Ish)kA40.0(b) Fault Clearing Time (t)( Secs)0.16Refer TCE design guide1.10Estimated Length (L)m100.01.11Permissible Voltage drop (a) Running%5.0(b) Starting%15.02.0LAYING CONDITIONSTray/BuriedDuctDeratingRefer cableTrench/inFactorcatalogue.Airground2.1Ambient TemperatureDeg. C45.00.862.2Grouping / Spacing with other cables1.02.3Thermal ResistivityDeg.C cm /W200.01.002.4Depth of Burialmm750.01.002.5Overall Derating FactorODF0.8603.0TYPE OF CABLE TO BE USEDValue of k (Amp./ sq.mm)(To be Marked)Al (Cond.)Cu (Cond.)3.1PVC75.0112.03.2XLPE (a) 22 / 33 kV94.0140.0(b) 11 kV94.0140.0(c) 6.6 kV94.0140.03.3(d) 415V94.0140.04.0CABLE SIZING4.1Based on Full Load Current44.09(a) Cable rating required (I / ODF)Amp.(b) Cable for above ratingTypeSize (Sq.mm.)No.of runsXLPE 3 CORE35.01.04.2Based on Short Circuit Current (For breaker protected feeders only)170.213(a)Sq. mm(b)For Contactor Controlled Feeder (HT only) I2t of cable chosen shall be 1.5*I2t of associated fuseSq. mm-4.3Estimated Cable SizeSq. mm185.0( Higher of 4.1 & 4.2 )5.0CHECK FOR VOLTAGE DROP5.1Cable SizeSq. mm185.05.2R (at cond. temp)ohm/ph./kM0.21Xohm/ph./kM0.089Load Angle36.865.3% Drop0.0225.4% Drop0.159(Refer Note - 1 below)5.5Is the voltage drop within permissible limits? (If not select higher size of cable and check for voltage drop)Yes / NoYES5.6Cable Size considering Voltage DropSq. mm240.06.0RECOMMENDED CABLE SIZETypeSize (Sq.mm)No. of Runs(Higher of 4.3 and 5.6)XLPE 3 CORE185.01.0NOTE:1) Load angle shall correspond to starting condition of Motor.

LT LOADSByKYPProject2 X 250 MW TPPDate22.07.2010TATA CONSULTING ENGINEERS LIMITEDDoc No.Chkd.GBKClientBECL, BHAVANAGARSubjectCABLE SIZINGDateJob No. 5403AOffice DBDept.ELSh. No.1.0of2.0Rev. No.0.0CABLE SIZING CALCULATION (6.6 kV H.V SIDE)1.0FEEDER DATAREMARKS1.1Incoming / Outgoing & DesignationIncoming1.2Rating, 3 PHkVA1200.01.3VoltagekV0.4151.4Power Factor (p.f)0.81.5Efficiency (Effy)0.91.6Type of EarthingEarthed / UnearthedSolidly Earthed.1.7(a) Current IFLkVA(Amp.)1669.453 * kV(b) Current IFL kW (Motor)(Amp.)3 * kV * Effy. * p.f1.8Type of Protection (CB / Fuse / MCB / MCCB)CB1.9(a) 3 Phase - Fault Current (Ish)kA50.0(b) Fault Clearing Time (t)( Secs)0.16Refer TCE design guide1.10Estimated Length (L)m500.01.11Permissible Voltage drop (a) Running%5.0(b) Starting%15.02.0LAYING CONDITIONSTray/BuriedDuctDeratingRefer cableTrench/inFactorcatalogue.Airground2.1Ambient TemperatureDeg. C45.00.902.2Grouping / Spacing with other cables1.02.3Thermal ResistivityDeg.C cm /W200.01.002.4Depth of Burialmm750.01.002.5Overall Derating FactorODF0.9003.0TYPE OF CABLE TO BE USEDValue of k (Amp./ sq.mm)(To be Marked)Al (Cond.)Cu (Cond.)3.1PVC75.0112.03.2XLPE (a) 22 / 33 kV94.0140.0(b) 11 kV94.0140.0(c) 6.6 kV94.0140.03.3(d) 415V94.0140.04.0CABLE SIZING4.1Based on Full Load Current1854.94(a) Cable rating required (I / ODF)Amp.(b) Cable for above ratingTypeSize (Sq.mm.)No.of runsXLPE 1 CORE1000.010.04.2Based on Short Circuit Current (For breaker protected feeders only)212.766(a)Sq. mm(b)For Contactor Controlled Feeder (HT only) I2t of cable chosen shall be 1.5*I2t of associated fuseSq. mm-4.3Estimated Cable SizeSq. mm185.0( Higher of 4.1 & 4.2 )5.0CHECK FOR VOLTAGE DROP5.1Cable SizeSq. mm800.05.2R (at cond. temp)ohm/ph./kM0.0444Xohm/ph./kM0.081Load Angle36.865.3% Drop2.9315.4% Drop-(Refer Note - 1 below)5.5Is the voltage drop within permissible limits? (If not select higher size of cable and check for voltage drop)Yes / NoYES5.6Cable Size considering Voltage DropSq. mm185.06.0RECOMMENDED CABLE SIZETypeSize (Sq.mm)No. of Runs(Higher of 4.3 and 5.6)XLPE 3 CORE185.01.0NOTE:1) Load angle shall correspond to starting condition of Motor.

Sheet1ByKYPProject2 X 250 MW TPPDate22.07.2010TATA CONSULTING ENGINEERS LIMITEDDoc No.Chkd.GBKClientBECL, BHAVANAGARSubjectCABLE SIZINGDateJob No. 5403AOffice DBDept.ELSh. No.1.0of2.0Rev. No.0.0CABLE SIZING CALCULATION (6.6 kV H.V SIDE)1.0FEEDER DATAREMARKS1.1Incoming / Outgoing & DesignationIncoming1.2Rating, 3 PHkVA11000.01.3VoltagekV6.6001.4Power Factor (p.f)0.81.5Efficiency (Effy)0.91.6Type of EarthingEarthed / UnearthedSolidly Earthed.1.7(a) Current IFLkVA(Amp.)962.253 * kV(b) Current IFL kW (Motor)(Amp.)3 * kV * Effy. * p.f1.8Type of Protection (CB / Fuse / MCB / MCCB)CB1.9(a) 3 Phase - Fault Current (Ish)kA40.0(b) Fault Clearing Time (t)( Secs)0.5Refer TCE design guide1.10Estimated Length (L)m500.01.11Permissible Voltage drop (a) Running%5.0(b) Starting%15.02.0LAYING CONDITIONSTray/BuriedDuctDeratingRefer cableTrench/inFactorcatalogue.Airground2.1Ambient TemperatureDeg. C45.00.862.2Grouping / Spacing with other cables1.02.3Thermal ResistivityDeg.C cm /W200.01.002.4Depth of Burialmm750.01.002.5Overall Derating FactorODF0.8603.0TYPE OF CABLE TO BE USEDValue of k (Amp./ sq.mm)(To be Marked)Al (Cond.)Cu (Cond.)3.1PVC75.0112.03.2XLPE (a) 22 / 33 kV94.0140.0(b) 11 kV94.0140.0(c) 6.6 kV94.0140.03.3(d) 415V94.0140.04.0CABLE SIZING4.1Based on Full Load Current1118.90(a) Cable rating required (I / ODF)Amp.(b) Cable for above ratingTypeSize (Sq.mm.)No.of runsXLPE 1 CORE630.03.04.2Based on Short Circuit Current (For breaker protected feeders only)300.897(a)Sq. mm(b)For Contactor Controlled Feeder (HT only) I2t of cable chosen shall be 1.5*I2t of associated fuseSq. mm-4.3Estimated Cable SizeSq. mm400.0( Higher of 4.1 & 4.2 )5.0CHECK FOR VOLTAGE DROP5.1Cable SizeSq. mm630.05.2R (at cond. temp)ohm/ph./kM0.06Xohm/ph./kM0.093Load Angle36.865.3% Drop0.4375.4% Drop-(Refer Note - 1 below)5.5Is the voltage drop within permissible limits? (If not select higher size of cable and check for voltage drop)Yes / NoYES5.6Cable Size considering Voltage DropSq. mm630.06.0RECOMMENDED CABLE SIZETypeSize (Sq.mm)No. of Runs(Higher of 4.3 and 5.6)XLPE 1 CORE630.03.0NOTE:1) Load angle shall correspond to starting condition of Motor.

MBD00031AC8.unknown

MBD000B66BA.unknown

MBD0016FD22.unknown

MBD0016FD23.unknown

MBD0016FD21.unknown

MBD000679C8.unknown

MBD000B66B8.unknown

MBD000B66B9.unknown

MBD000679C9.unknown

MBD00057F2D.unknown

MBD00057F2E.unknown

MBD000679C7.unknown

MBD00031AC9.unknown

MBD00057F2C.unknown

MBD0001E6C3.unknown

MBD00031AC7.unknown

MBD0001E6C1.unknown

MBD0001E6C2.unknown