PFIFFNER InstrumentTransformers Pvt. Ltd.

178/2, Sarul,Nashik – 422 010,

INDIA

PFIFFNER InstrumentTransformers Pvt. Ltd.

178/2, Sarul,Nashik – 422 010,

INDIA

PFIFFNER InstrumentTransformers Pvt. Ltd.

178/2, Sarul,Nashik – 422 010,

INDIA

PFIFFNER Instrument Transformers Pvt. Ltd.176,178/2, Sarul , Nashik – 422 010, INDIA

PFIFFNER Instrument Transformers Pvt. Ltd.176,178/2, Sarul , Nashik – 422 010, INDIA

PFIFFNER Instrument Transformers Pvt. Ltd.176,178/2, Sarul , Nashik – 422 010, INDIA

Outdoor operation

72 kV - 420kVCurrent Transformers

72 kV - 245 kVInductive Voltage Transformers

72 kV – 800 kVCapacitive Voltage Transformers

Oil-paper Insulated Fine-graded Bushing Generously-sized Terminal Box Robust design Earthquake-resistant

Oil-paper Insulated Fine-graded Bushing Oil Level Indicator Generously-sized Terminal Box Robust design Earthquake-resistant Low center of gravity

Upgradable for the transmissionof high-frequency signals

No on-site adjustments isnecessary

Increased security againstrelaxation oscillation

The high voltage oil-filled CT’s consist

of head types with metal expansion

bellows to withstand higher thermal

loads. The CT’s can be produced with

flat or round primary connectors

Our VT’s are working at low induction.

With an open delta winding and damping

unit, ferroresonance can be minimized if

requested. The secondary terminal box

can be equipped with fuses to protect

the secondary wiring and equipment

All CVT’s are ferro-resonance free and

are not damaged by line discharge.

Optionally all CVT’s can be equipped

with line trap connections and PLC

assessories.The secondary terminal

box can be equipped with fuses

Swiss Quality combined with Global Experience

Outdoor operation

72 kV - 420kVCurrent Transformers

72 kV - 245 kVInductive Voltage Transformers

72 kV – 800 kVCapacitive Voltage Transformers

Oil-paper Insulated Fine-graded Bushing Generously-sized Terminal Box Robust design Earthquake-resistant

Oil-paper Insulated Fine-graded Bushing Oil Level Indicator Generously-sized Terminal Box Robust design Earthquake-resistant Low center of gravity

Upgradable for the transmissionof high-frequency signals

No on-site adjustments isnecessary

Increased security againstrelaxation oscillation

The high voltage oil-filled CT’s consist

of head types with metal expansion

bellows to withstand higher thermal

loads. The CT’s can be produced with

flat or round primary connectors

Our VT’s are working at low induction.

With an open delta winding and damping

unit, ferroresonance can be minimized if

requested. The secondary terminal box

can be equipped with fuses to protect

the secondary wiring and equipment

All CVT’s are ferro-resonance free and

are not damaged by line discharge.

Optionally all CVT’s can be equipped

with line trap connections and PLC

assessories.The secondary terminal

box can be equipped with fuses

Swiss Quality combined with Global Experience

Outdoor operation

72 kV - 420kVCurrent Transformers

72 kV - 245 kVInductive Voltage Transformers

72 kV – 800 kVCapacitive Voltage Transformers

Oil-paper Insulated Fine-graded Bushing Generously-sized Terminal Box Robust design Earthquake-resistant

Oil-paper Insulated Fine-graded Bushing Oil Level Indicator Generously-sized Terminal Box Robust design Earthquake-resistant Low center of gravity

Upgradable for the transmissionof high-frequency signals

No on-site adjustments isnecessary

Increased security againstrelaxation oscillation

The high voltage oil-filled CT’s consist

of head types with metal expansion

bellows to withstand higher thermal

loads. The CT’s can be produced with

flat or round primary connectors

Our VT’s are working at low induction.

With an open delta winding and damping

unit, ferroresonance can be minimized if

requested. The secondary terminal box

can be equipped with fuses to protect

the secondary wiring and equipment

All CVT’s are ferro-resonance free and

are not damaged by line discharge.

Optionally all CVT’s can be equipped

with line trap connections and PLC

assessories.The secondary terminal

box can be equipped with fuses

Swiss Quality combined with Global Experience

Technical Data – Current Transformers

Type 145 kV 245 kV 420 kVUnit height A (mm) 2895 3770 5320Primary terminal to base height B (mm) 2160 3017 4375Mounting distance C (mm) 450 x 450 450 x 450 600 x 600Base outside dimension D (mm) 504 504 700Base outside dimension D1 (mm) 511 511 650Unit including terminal box E (mm) 720 720 855Min. creepage distance (mm) 3625 6125 10500Approximate weight (kg) 450 820 1465

Type 145 kV 245 kV 420 kVStandard IEC 61869 , IS 16227Highest voltage for equipment kV 145 245 420Rated power frequency withstand voltage kV 275 460 630Rated lightning impulse withstand voltage kVp 650 1050 1425Rated Switching Impulse withstand voltage kVp - - 1050Frequency Hz 50/60Primary rated current A 50- 5000Secondary rated current A 1/5Rated short time thermal current kA/1s ≤ 69Rated dynamic current kAp ≤ 175Accuracy Class 0.2,0.2S; 0.5; 5P,PX, TPXMaximum number of cores per CT 6

Technical Data – Current Transformers

Type 145 kV 245 kV 420 kVUnit height A (mm) 2895 3770 5320Primary terminal to base height B (mm) 2160 3017 4375Mounting distance C (mm) 450 x 450 450 x 450 600 x 600Base outside dimension D (mm) 504 504 700Base outside dimension D1 (mm) 511 511 650Unit including terminal box E (mm) 720 720 855Min. creepage distance (mm) 3625 6125 10500Approximate weight (kg) 450 820 1465

Type 145 kV 245 kV 420 kVStandard IEC 61869 , IS 16227Highest voltage for equipment kV 145 245 420Rated power frequency withstand voltage kV 275 460 630Rated lightning impulse withstand voltage kVp 650 1050 1425Rated Switching Impulse withstand voltage kVp - - 1050Frequency Hz 50/60Primary rated current A 50- 5000Secondary rated current A 1/5Rated short time thermal current kA/1s ≤ 69Rated dynamic current kAp ≤ 175Accuracy Class 0.2,0.2S; 0.5; 5P,PX, TPXMaximum number of cores per CT 6

Technical Data – Current Transformers

Type 145 kV 245 kV 420 kVUnit height A (mm) 2895 3770 5320Primary terminal to base height B (mm) 2160 3017 4375Mounting distance C (mm) 450 x 450 450 x 450 600 x 600Base outside dimension D (mm) 504 504 700Base outside dimension D1 (mm) 511 511 650Unit including terminal box E (mm) 720 720 855Min. creepage distance (mm) 3625 6125 10500Approximate weight (kg) 450 820 1465

Type 145 kV 245 kV 420 kVStandard IEC 61869 , IS 16227Highest voltage for equipment kV 145 245 420Rated power frequency withstand voltage kV 275 460 630Rated lightning impulse withstand voltage kVp 650 1050 1425Rated Switching Impulse withstand voltage kVp - - 1050Frequency Hz 50/60Primary rated current A 50- 5000Secondary rated current A 1/5Rated short time thermal current kA/1s ≤ 69Rated dynamic current kAp ≤ 175Accuracy Class 0.2,0.2S; 0.5; 5P,PX, TPXMaximum number of cores per CT 6

Technical Data – Inductive Voltage Transformers

Type 72 kV 145 kV 245 kVUnit height A (mm) 1840 2735 3720Base to Upper Tank B (mm) 665 595 940Mounting distance C (mm) 500 x 500 500 x 500 600 x 600Base outside dimension D (mm) 600 600 700Unit including terminal box E (mm) 820 860 970Min. creepage distance (mm) 1815 3625 6125Approximate weight (kg) 350 425 850

Type 72 kV 145 kV 245 kVStandard IEC 61869 , IS 16227Highest voltage for equipment kV 72.5 145 245Rated Secondary Voltage V 100,100/√3, 110, 110/√3 , 115 , 115/√3Rated power frequency withstand voltage kV 140 275 460Rated lightning impulse withstand voltage kVp 325 650 1050Frequency Hz 50 / 60Max. simultaneous burden VA 150 200 300Accuracy Class 0.2; 0.5; 3PNumber of windings 3

Technical Data – Inductive Voltage Transformers

Type 72 kV 145 kV 245 kVUnit height A (mm) 1840 2735 3720Base to Upper Tank B (mm) 665 595 940Mounting distance C (mm) 500 x 500 500 x 500 600 x 600Base outside dimension D (mm) 600 600 700Unit including terminal box E (mm) 820 860 970Min. creepage distance (mm) 1815 3625 6125Approximate weight (kg) 350 425 850

Type 72 kV 145 kV 245 kVStandard IEC 61869 , IS 16227Highest voltage for equipment kV 72.5 145 245Rated Secondary Voltage V 100,100/√3, 110, 110/√3 , 115 , 115/√3Rated power frequency withstand voltage kV 140 275 460Rated lightning impulse withstand voltage kVp 325 650 1050Frequency Hz 50 / 60Max. simultaneous burden VA 150 200 300Accuracy Class 0.2; 0.5; 3PNumber of windings 3

Technical Data – Inductive Voltage Transformers

Type 72 kV 145 kV 245 kVUnit height A (mm) 1840 2735 3720Base to Upper Tank B (mm) 665 595 940Mounting distance C (mm) 500 x 500 500 x 500 600 x 600Base outside dimension D (mm) 600 600 700Unit including terminal box E (mm) 820 860 970Min. creepage distance (mm) 1815 3625 6125Approximate weight (kg) 350 425 850

Type 72 kV 145 kV 245 kVStandard IEC 61869 , IS 16227Highest voltage for equipment kV 72.5 145 245Rated Secondary Voltage V 100,100/√3, 110, 110/√3 , 115 , 115/√3Rated power frequency withstand voltage kV 140 275 460Rated lightning impulse withstand voltage kVp 325 650 1050Frequency Hz 50 / 60Max. simultaneous burden VA 150 200 300Accuracy Class 0.2; 0.5; 3PNumber of windings 3

Technical Data – Capacitive Voltage Transformers

Type 72 kV 170 kV 245 kV 300 kV 420 kVUnit height A (mm) 1840 2435 3010 3625 4055Mounting distance (mm) 450 450 450 450 450Min. creepage distance (mm) 1815 4250 6125 7500 10500Approximate weight (kg) 320 365 510 450 620

Type 72 kV 170 kV 245 kV 300 kV 420 kVStandard IEC 61869 , IS 16227Highest voltage for equipment kV 72.5 145 245 300 420Rated Secondary Voltage V 100,100/√3, 110, 110/√3 , 115 , 115/√3Rated Capacitance pF 3000 - 10000Rated power frequency withstand voltage kV 140 275 460 460 630Rated lightning impulse withstand voltage kVp 325 650 1050 1050 1425Frequency Hz 50/60Max. simultaneous burden VA 100 100 150 200 200Accuracy Class 0.2; 0.5; 3PNumber of windings 3

Technical Data – Capacitive Voltage Transformers

Type 72 kV 170 kV 245 kV 300 kV 420 kVUnit height A (mm) 1840 2435 3010 3625 4055Mounting distance (mm) 450 450 450 450 450Min. creepage distance (mm) 1815 4250 6125 7500 10500Approximate weight (kg) 320 365 510 450 620

Type 72 kV 170 kV 245 kV 300 kV 420 kVStandard IEC 61869 , IS 16227Highest voltage for equipment kV 72.5 145 245 300 420Rated Secondary Voltage V 100,100/√3, 110, 110/√3 , 115 , 115/√3Rated Capacitance pF 3000 - 10000Rated power frequency withstand voltage kV 140 275 460 460 630Rated lightning impulse withstand voltage kVp 325 650 1050 1050 1425Frequency Hz 50/60Max. simultaneous burden VA 100 100 150 200 200Accuracy Class 0.2; 0.5; 3PNumber of windings 3

Technical Data – Capacitive Voltage Transformers

Type 72 kV 170 kV 245 kV 300 kV 420 kVUnit height A (mm) 1840 2435 3010 3625 4055Mounting distance (mm) 450 450 450 450 450Min. creepage distance (mm) 1815 4250 6125 7500 10500Approximate weight (kg) 320 365 510 450 620

Type 72 kV 170 kV 245 kV 300 kV 420 kVStandard IEC 61869 , IS 16227Highest voltage for equipment kV 72.5 145 245 300 420Rated Secondary Voltage V 100,100/√3, 110, 110/√3 , 115 , 115/√3Rated Capacitance pF 3000 - 10000Rated power frequency withstand voltage kV 140 275 460 460 630Rated lightning impulse withstand voltage kVp 325 650 1050 1050 1425Frequency Hz 50/60Max. simultaneous burden VA 100 100 150 200 200Accuracy Class 0.2; 0.5; 3PNumber of windings 3

Technical Data – Resistive Capacitive Voltage Divider

72 – 362 kV 420 – 550 kVType 72 123 145 170 245 300 362 420 550Standard DIN / IEC / IEEEHighest voltage for equipment (Um) kV 72.5 123 145 170 245 300 362 420 550Rated power-frequency withstandvoltage

kV 140 230 275 325 460 460 510 630 680

Rated lightning impulse withstandvoltage

kV 325 550 650 750105

01050 1175 1425 1550

Rated frequency Hz DC/16.7 / 50 / 60Accuracy class 0.1; 0.2; 0.5; 1.0; 3.0Frequency bandwidth DC / 15 – 10000 (30000)Burden type kV R or R // CBurden range ≥ 100 kΩRated voltage factors 1.5 – 30 sec / 1.9 – 30 sec / 1.9 – 8 hTemperature range °C -50... +40

Type 72 123 145 170 245 300 362 420 550

Total height of unit* Amm 1326 1626 1826 2026 2626 2869 3511 3911 4669

Height to primary terminal* Bmm 1186 1486 1686 1886 2486 2729 3371 3771 4529

Depth of unit includingterminal box

Cmm 724 724 724 724 724 724 724 724 724

Depth of unit base Dmm 500 500 500 500 500 500 500 500 500

Width of unit base Emm 500 500 500 500 500 500 500 500 500

Distance between screw holesat base

Fmm 450 450 450 450 450 450 450 450 450

Min. creepage distance* mm 2420 3540 4280 5030 7260 7900 9390 12280 14950

Approximate weight* kg 90 100 110 130 150 170 190 210 230

Technical Data – Resistive Capacitive Voltage Divider

72 – 362 kV 420 – 550 kVType 72 123 145 170 245 300 362 420 550Standard DIN / IEC / IEEEHighest voltage for equipment (Um) kV 72.5 123 145 170 245 300 362 420 550Rated power-frequency withstandvoltage

kV 140 230 275 325 460 460 510 630 680

Rated lightning impulse withstandvoltage

kV 325 550 650 750105

01050 1175 1425 1550

Rated frequency Hz DC/16.7 / 50 / 60Accuracy class 0.1; 0.2; 0.5; 1.0; 3.0Frequency bandwidth DC / 15 – 10000 (30000)Burden type kV R or R // CBurden range ≥ 100 kΩRated voltage factors 1.5 – 30 sec / 1.9 – 30 sec / 1.9 – 8 hTemperature range °C -50... +40

Type 72 123 145 170 245 300 362 420 550

Total height of unit* Amm 1326 1626 1826 2026 2626 2869 3511 3911 4669

Height to primary terminal* Bmm 1186 1486 1686 1886 2486 2729 3371 3771 4529

Depth of unit includingterminal box

Cmm 724 724 724 724 724 724 724 724 724

Depth of unit base Dmm 500 500 500 500 500 500 500 500 500

Width of unit base Emm 500 500 500 500 500 500 500 500 500

Distance between screw holesat base

Fmm 450 450 450 450 450 450 450 450 450

Min. creepage distance* mm 2420 3540 4280 5030 7260 7900 9390 12280 14950

Approximate weight* kg 90 100 110 130 150 170 190 210 230

Technical Data – Resistive Capacitive Voltage Divider

72 – 362 kV 420 – 550 kVType 72 123 145 170 245 300 362 420 550Standard DIN / IEC / IEEEHighest voltage for equipment (Um) kV 72.5 123 145 170 245 300 362 420 550Rated power-frequency withstandvoltage

kV 140 230 275 325 460 460 510 630 680

Rated lightning impulse withstandvoltage

kV 325 550 650 750105

01050 1175 1425 1550

Rated frequency Hz DC/16.7 / 50 / 60Accuracy class 0.1; 0.2; 0.5; 1.0; 3.0Frequency bandwidth DC / 15 – 10000 (30000)Burden type kV R or R // CBurden range ≥ 100 kΩRated voltage factors 1.5 – 30 sec / 1.9 – 30 sec / 1.9 – 8 hTemperature range °C -50... +40

Type 72 123 145 170 245 300 362 420 550

Total height of unit* Amm 1326 1626 1826 2026 2626 2869 3511 3911 4669

Height to primary terminal* Bmm 1186 1486 1686 1886 2486 2729 3371 3771 4529

Depth of unit includingterminal box

Cmm 724 724 724 724 724 724 724 724 724

Depth of unit base Dmm 500 500 500 500 500 500 500 500 500

Width of unit base Emm 500 500 500 500 500 500 500 500 500

Distance between screw holesat base

Fmm 450 450 450 450 450 450 450 450 450

Min. creepage distance* mm 2420 3540 4280 5030 7260 7900 9390 12280 14950

Approximate weight* kg 90 100 110 130 150 170 190 210 230

General Arrangement – 245 kV Current Transformer

Standard IS61227-2, IEC61869-2

Voltage Level 245 kV /460 kV rms /1050 kVp

Frequency 50 Hz

Icth 120%

Ith 40 kA for 1 sec

Core 1 800-1600 / 1A; PS

Core 2 800-1600 / 1A ;PS

Core 3 800-1600 / 1A ;0.2S; 20VA

Core 4 800-1600 / 1A; PS

Core 5 800-1600 / 1A; PS

Primary Terminal Flat, DIN F2, Horizontal

Creepage Distance 31 mm/kV

Ratio change over By secondary

Total Weight 820 kg ±10%

Oil Weight 210 kg ±10%

Exhibit 1

General Arrangement – 245 kV Current Transformer

Standard IS61227-2, IEC61869-2

Voltage Level 245 kV /460 kV rms /1050 kVp

Frequency 50 Hz

Icth 120%

Ith 40 kA for 1 sec

Core 1 800-1600 / 1A; PS

Core 2 800-1600 / 1A ;PS

Core 3 800-1600 / 1A ;0.2S; 20VA

Core 4 800-1600 / 1A; PS

Core 5 800-1600 / 1A; PS

Primary Terminal Flat, DIN F2, Horizontal

Creepage Distance 31 mm/kV

Ratio change over By secondary

Total Weight 820 kg ±10%

Oil Weight 210 kg ±10%

Exhibit 1

General Arrangement – 245 kV Current Transformer

Standard IS61227-2, IEC61869-2

Voltage Level 245 kV /460 kV rms /1050 kVp

Frequency 50 Hz

Icth 120%

Ith 40 kA for 1 sec

Core 1 800-1600 / 1A; PS

Core 2 800-1600 / 1A ;PS

Core 3 800-1600 / 1A ;0.2S; 20VA

Core 4 800-1600 / 1A; PS

Core 5 800-1600 / 1A; PS

Primary Terminal Flat, DIN F2, Horizontal

Creepage Distance 31 mm/kV

Ratio change over By secondary

Total Weight 820 kg ±10%

Oil Weight 210 kg ±10%

Exhibit 1

General Arrangement – 245 kV Inductive Voltage Transformer

Standard IEC61869-1 & IEC61869-3

Voltage Class 245 kV

Insulation Level 460 kVrms /1050 kVp

Frequency 50 Hz

Voltage Class 245 kV

Voltage Factor 1.2 cont. / 1.5 for 30 sec.

Insulation Level 460 kV rms /1050kVp

Winding 1 110/ √3 V, 50 VA, 3P

Winding 2 110/ √3 V ,50 VA ,3P

Winding 3 110/ √3 V ,50 VA, 0.2

Primary Terminal Flat, DIN F2, horizontal

Creepage Distance 31 mm/kV

Total Weight 850 kg. ±10%

Oil Weight 185 kg. ±10%

Exhibit 2

General Arrangement – 245 kV Inductive Voltage Transformer

Standard IEC61869-1 & IEC61869-3

Voltage Class 245 kV

Insulation Level 460 kVrms /1050 kVp

Frequency 50 Hz

Voltage Class 245 kV

Voltage Factor 1.2 cont. / 1.5 for 30 sec.

Insulation Level 460 kV rms /1050kVp

Winding 1 110/ √3 V, 50 VA, 3P

Winding 2 110/ √3 V ,50 VA ,3P

Winding 3 110/ √3 V ,50 VA, 0.2

Primary Terminal Flat, DIN F2, horizontal

Creepage Distance 31 mm/kV

Total Weight 850 kg. ±10%

Oil Weight 185 kg. ±10%

Exhibit 2

General Arrangement – 245 kV Inductive Voltage Transformer

Standard IEC61869-1 & IEC61869-3

Voltage Class 245 kV

Insulation Level 460 kVrms /1050 kVp

Frequency 50 Hz

Voltage Class 245 kV

Voltage Factor 1.2 cont. / 1.5 for 30 sec.

Insulation Level 460 kV rms /1050kVp

Winding 1 110/ √3 V, 50 VA, 3P

Winding 2 110/ √3 V ,50 VA ,3P

Winding 3 110/ √3 V ,50 VA, 0.2

Primary Terminal Flat, DIN F2, horizontal

Creepage Distance 31 mm/kV

Total Weight 850 kg. ±10%

Oil Weight 185 kg. ±10%

Exhibit 2

General Arrangement – 300 kV Capacitive Voltage Transformers

Standard IEC 61869-1 & IEC 61869-5

Frequency 50 Hz

Voltage Class 300 kV

Total ThermalOutput

300 VA

Insulation level 460 kVrms / 1050 kVp

Voltage factor 1.2 CONT. / 1.5-30 sec.

Equivalentcapacitance

4400 pF (+10%, -5%)

Volts A-NHF 275000 / √3

Winding 1 110 / √3, 3P, 50 VA

Winding 2 110 / √3, 3P, 50 VA

Winding 3 110 / √3, 0.2 , 50 VA

Creepage Distance 25 mm / kV

Total Weight 390 kg ±10%

EMU oil weight 65 kg ±10%

Capacitor oil weight 40 kg ±10%

Exhibit 3

General Arrangement – 300 kV Capacitive Voltage Transformers

Standard IEC 61869-1 & IEC 61869-5

Frequency 50 Hz

Voltage Class 300 kV

Total ThermalOutput

300 VA

Insulation level 460 kVrms / 1050 kVp

Voltage factor 1.2 CONT. / 1.5-30 sec.

Equivalentcapacitance

4400 pF (+10%, -5%)

Volts A-NHF 275000 / √3

Winding 1 110 / √3, 3P, 50 VA

Winding 2 110 / √3, 3P, 50 VA

Winding 3 110 / √3, 0.2 , 50 VA

Creepage Distance 25 mm / kV

Total Weight 390 kg ±10%

EMU oil weight 65 kg ±10%

Capacitor oil weight 40 kg ±10%

Exhibit 3

General Arrangement – 300 kV Capacitive Voltage Transformers

Standard IEC 61869-1 & IEC 61869-5

Frequency 50 Hz

Voltage Class 300 kV

Total ThermalOutput

300 VA

Insulation level 460 kVrms / 1050 kVp

Voltage factor 1.2 CONT. / 1.5-30 sec.

Equivalentcapacitance

4400 pF (+10%, -5%)

Volts A-NHF 275000 / √3

Winding 1 110 / √3, 3P, 50 VA

Winding 2 110 / √3, 3P, 50 VA

Winding 3 110 / √3, 0.2 , 50 VA

Creepage Distance 25 mm / kV

Total Weight 390 kg ±10%

EMU oil weight 65 kg ±10%

Capacitor oil weight 40 kg ±10%

Exhibit 3

General Arrangement – 420 kV Current Transformer

Standard IEC61869-1 and IEC61869-2

Voltage Class 420 kV

Insulation Level 630 kVrms/1425 kVp/1050kVp

Frequency 50 Hz

Icth 120%

Ith 63kA for 1sec

Core 1 500-2000-3000 / 1A , PX

Core 2 500-2000-3000 / 1A, PX

Core 3 500-2000-3000 / 1A, 0.2S, 20VA

Core 4 500-2000-3000 / 1A ,0.2S,20VA

Core 5 500-2000-3000 / 1A, PX

Core 6 500-2000-3000 / 1A PX

Primary Terminal Flat, DIN F2, horizontal

CreepageDistance 31.5 mm/kV

Ratio change over By secondary

Total Weight 1465 kg. ±10%

Oil Weight 385 kg. ±10%

Exhibit 4

General Arrangement – 420 kV Current Transformer

Standard IEC61869-1 and IEC61869-2

Voltage Class 420 kV

Insulation Level 630 kVrms/1425 kVp/1050kVp

Frequency 50 Hz

Icth 120%

Ith 63kA for 1sec

Core 1 500-2000-3000 / 1A , PX

Core 2 500-2000-3000 / 1A, PX

Core 3 500-2000-3000 / 1A, 0.2S, 20VA

Core 4 500-2000-3000 / 1A ,0.2S,20VA

Core 5 500-2000-3000 / 1A, PX

Core 6 500-2000-3000 / 1A PX

Primary Terminal Flat, DIN F2, horizontal

CreepageDistance 31.5 mm/kV

Ratio change over By secondary

Total Weight 1465 kg. ±10%

Oil Weight 385 kg. ±10%

Exhibit 4

General Arrangement – 420 kV Current Transformer

Standard IEC61869-1 and IEC61869-2

Voltage Class 420 kV

Insulation Level 630 kVrms/1425 kVp/1050kVp

Frequency 50 Hz

Icth 120%

Ith 63kA for 1sec

Core 1 500-2000-3000 / 1A , PX

Core 2 500-2000-3000 / 1A, PX

Core 3 500-2000-3000 / 1A, 0.2S, 20VA

Core 4 500-2000-3000 / 1A ,0.2S,20VA

Core 5 500-2000-3000 / 1A, PX

Core 6 500-2000-3000 / 1A PX

Primary Terminal Flat, DIN F2, horizontal

CreepageDistance 31.5 mm/kV

Ratio change over By secondary

Total Weight 1465 kg. ±10%

Oil Weight 385 kg. ±10%

Exhibit 4

Cross Section – OIP Current Transformer

1. Bellow Cover

2. Stainless Steel Bellows / Oil LevelIndicator

3. Cores with Secondary Winding

4. Core Box

5. Primary Assembly

6. Primary Terminal

7. Aluminium Tank

8. Fine graded Insulation

9. Porcelain / Composite Insulator

10. Aluminium Base

11. Oil Sampling Valve

12. Tan Delta measuring tap

13. Terminal Box

14. Secondary Lead out

8

9

14

13

11

10

12

7

6

3

2

1

4

5

Cross Section – OIP Current Transformer

1. Bellow Cover

2. Stainless Steel Bellows / Oil LevelIndicator

3. Cores with Secondary Winding

4. Core Box

5. Primary Assembly

6. Primary Terminal

7. Aluminium Tank

8. Fine graded Insulation

9. Porcelain / Composite Insulator

10. Aluminium Base

11. Oil Sampling Valve

12. Tan Delta measuring tap

13. Terminal Box

14. Secondary Lead out

8

9

14

13

11

10

12

7

6

3

2

1

4

5

Cross Section – OIP Current Transformer

1. Bellow Cover

2. Stainless Steel Bellows / Oil LevelIndicator

3. Cores with Secondary Winding

4. Core Box

5. Primary Assembly

6. Primary Terminal

7. Aluminium Tank

8. Fine graded Insulation

9. Porcelain / Composite Insulator

10. Aluminium Base

11. Oil Sampling Valve

12. Tan Delta measuring tap

13. Terminal Box

14. Secondary Lead out

8

9

14

13

11

10

12

7

6

3

2

1

4

5

Cross Section – OIP Inductive Voltage Transformer

1. Bellow Cover

2. Stainless Steel Bellows / Oil LevelIndicator

3. HV Terminal

4. Porcelain / Composite Insulator

5. Fine graded Insulation

6. Aluminium Tank

7. Interleaved Core

8. Oil Sampling Valve

9. HV Shield

10. Secondary Lead out

11. Terminal Box

1

2

4

3

5

6

7

9

10

11]1 8

Cross Section – OIP Inductive Voltage Transformer

1. Bellow Cover

2. Stainless Steel Bellows / Oil LevelIndicator

3. HV Terminal

4. Porcelain / Composite Insulator

5. Fine graded Insulation

6. Aluminium Tank

7. Interleaved Core

8. Oil Sampling Valve

9. HV Shield

10. Secondary Lead out

11. Terminal Box

1

2

4

3

5

6

7

9

10

11]1 8

Cross Section – OIP Inductive Voltage Transformer

1. Bellow Cover

2. Stainless Steel Bellows / Oil LevelIndicator

3. HV Terminal

4. Porcelain / Composite Insulator

5. Fine graded Insulation

6. Aluminium Tank

7. Interleaved Core

8. Oil Sampling Valve

9. HV Shield

10. Secondary Lead out

11. Terminal Box

1

2

4

3

5

6

7

9

10

11]1 8

Cross Section – OIP Capacitive Voltage Transformer

1. HV Terminal

2. Stainless Steel Bellows

3. Porcelain / Composite Insulator

4. Capacitor Divider

5. M.V. Tap Terminal

6. Core Coil Assembly

7. Oil Sampling Valve

8. Aluminium EMU Tank

9. Terminal Box

10. Inductor Assembly

11. Damping Resistor

1

2

3

58

96

711

10

4

Cross Section – OIP Capacitive Voltage Transformer

1. HV Terminal

2. Stainless Steel Bellows

3. Porcelain / Composite Insulator

4. Capacitor Divider

5. M.V. Tap Terminal

6. Core Coil Assembly

7. Oil Sampling Valve

8. Aluminium EMU Tank

9. Terminal Box

10. Inductor Assembly

11. Damping Resistor

1

2

3

58

96

711

10

4

Cross Section – OIP Capacitive Voltage Transformer

1. HV Terminal

2. Stainless Steel Bellows

3. Porcelain / Composite Insulator

4. Capacitor Divider

5. M.V. Tap Terminal

6. Core Coil Assembly

7. Oil Sampling Valve

8. Aluminium EMU Tank

9. Terminal Box

10. Inductor Assembly

11. Damping Resistor

1

2

3

58

96

711

10

4

Germany, Itzehoe

Turkey Ankara

India, Nashik

Brazil, Itajai

Instrument Transformers HV SF6 AIS/GIS

Instrument Transformers HV Oil/ MV resin

Instrument Transformers HV Oil

Instrument Transformers HV Oil

www.pfiffner-group.com

Local manufacturing close to our customers

SwitzerlandHirschthal : Instrument Transformers HV Oil & SF6, MV&LV

Kaiseraugst : Busbar solutions, bushings

Nidau : Disconnectors, cable solutions rolling stock

Basel : AC and DC Test systems, Instrumentation

Global presence

PFIFFNER Instrument Transformers Ltd5042 HirschthalSwitzerland

+41 (0)62 7392828sales@pmw.chwww.pfiffner-group.com/pch

PFIFFNER Systems Ltd4303 KaiseraugstSwitzerland

+41 (0)61 4676111info@pfiffner-systems.comwww.pfiffner-systems.com

PFIFFNER Deutschland GmbH25524 ItzehoeGermany

+49 (0)48 21408270sales@pfiffner-messwandler.dewww.pfiffner-group.com/pde

PFIFFNER Transformatör A.S.06750 Akyurt /AnkaraTurkey

+90 (0)31 28475521info@pfiffner.com.trwww.pfiffner-group.com/ptr

PFIFFNER do Brasil Ltda88307-740 ItajaíBrazil

+55 (0)47 33481700pfiffner@pfiffner.com.brwww.pfiffner-group.com/pbr

PFIFFNER Instr. Transf. Private Ltd178/2, Sarul, NashikIndia

+91 253 297 8227contact@pfiffner.inwww.pfiffner.in

MGC Moser-Glaser Ltd4303 KaiseraugstSwitzerland

+41 (0)61 4676111info@mgc.chwww.mgc.ch

ALPHA Elektrotechnik Ltd2560 NidauSwitzerland

+41 (0)32 3328700mail@alpha-et.chwww.alpha-et.ch

HAEFELY Ltd4052 BaselSwitzerland

+41 (0)61 373 41 11sales@haefely.comwww.haefely.com

This document has been drawn up with the utmost care. We cannot, however, guarantee that it is entirely complete, correct or up-to-date.Copyright PFIFFNER – Subject to change without notice 01.2020

PFIFFNER Instrument Transformers Pvt. Ltd.176,178/2, Sarul ,Nashik – 422 010, INDIA