Products
On-Load Tap-Changer
15-33 KV
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Specification
Rated voltage 15-33 KV
Max. Rated through-current 1600 A
Direction of power flow Change-Over Selector
Tapping arrangement Linear
Maximum Number of Tap Positions 33
Max. Rated Step Voltage 1000 V
Rated Insulation level Applied voltage (KV) Full wave lightning impulse test (KV)
(a)Tapchanger to Earth 34 110
(b)Between phases 34 110
(c)Between First and Last Contact 26 70
(d)Between any two adjacent contacts 15 45
(e)Between contacts of Change-Over selector NA NA
Oil quantity 960 liters
Weight of tap changer without oil 750 Kgs.
Dimension of OLTC VIEWCLOSE
(A)ABS 11
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Specification
Maximum voltage rating 11 kV
Maximum rated through-current 65 A & 100 A
Tapping arrangement Coarse –fine/Reversing
Direction of Power-flow Bi-directional
Maximum number of tap positions 17
Rated step voltage 250 V
Switching Capacity 12.5 kVA and 25 kVA
Rated Insulation level Highest voltage for equipment kV Rated separate source AC withstand voltage kV(r.m.s) Rated lightning impulse withstand voltage kV(peak)
(a)Tapchanger to ground 12 28 75
(b)Between phases 28 75
(c)Over tapping range 8 25
(d)Between adjacent contacts 8 25
(e)Between contacts of pre selector 8 25
Weight of tap changer 380 kg
Dimension of OLTC VIEWCLOSE
ABS 11
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Specification
Maximum voltage rating 11 kV
Maximum rated through-current 200 A
Direction of power flow Uni-directional
Tapping arrangement Linear
Maximum number of tap positions 17
Switching capacity 35kVA
Rated step voltage 300 V
Rated Insulation level Highest voltage for equipment kV Rated separate source AC withstand voltage kV(r.m.s) Rated lightning impulse withstand voltage kV(peak)
(a)Tapchanger to ground 12 28 75
(b)Between phases 28 75
(c)Over tapping range 25 70
(d)Between adjacent contacts 20 50
(e)Between contacts of pre selector NA NA
Oil quantity 290 liters
Weight of tap changer with oil 610 Kg
Dimension of OLTC VIEWCLOSE
ABS 33
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Specification
Rated voltage 33 kV
Highest System Voltage 36 kV
Maximum rated through-current 200/300 A
Rated step voltage 850 V
Switching capacity 90/135 kVA
Rated Insulation level Rated Separate Source AC withstand voltagekV(r.m.s)850 V Rated lighting impulses withstand voltage kV(peak)
(a)Tapchanger to ground 70 170
(b)Between phases 70 170
(c)Over tapping range 25 70
(d)Between adjacent contacts 12 30
Type ABS III 200/300 30 9 9 0 ABS III 200/300 30 17 17 0 ABS III 200/300 9 17 0G ABS III 200/300 12 23 0G
Tapping arrangement Linear Linear Coarse-fine/Reversing Coarse-fine/Reversing
Direction of Power flow Bi-directional Uni-directional Bi-directional Bi-directional
Maximum Number of tap positions 9 17 17 23
Oil quantity 335 Liters 660 Liters 390 Liters 670 Liters
Weight of tap changer with oil 675kg 1060kg 740kg 1045kg
Dimension of OLTC VIEWCLOSE
ABS 66
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Specification
Rated voltage 66 kV
Rated through-current 300 A
Direction of power flow Maximum number of tap positions
a)Uni-directional 17
b)Bi-directional 23
Tapping arrangement 17
Switching capacity 23
Rated step voltage 1000 V
Rated Insulation level Highest voltage for equipment kV Rated separate source AC withstand voltage kV(r.m.s) Rated lightning impulse withstand voltage kV(peak)
(a)Tapchanger to ground 72 140 350
(b)Between phases 140 350
(c)Over tapping range 80 200
(d)Between adjacent contacts 20 70
(e)Between contacts of pre selector NA NA
Oil quantity 1765 Liters
Weight of tap changer with oil 2250 kg
Dimension of OLTC VIEWCLOSE
ABS 132
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Specification
Rated voltage 132 kV
Rated through-current 300 A
Direction of power flow Bi-Directional
Tapping arrangement Coarse-Fine & Reversing
Rated step voltage 1200 V
Rated Insulation level Highest voltage for equipment kV Rated separate source AC withstand voltage kV(r.m.s) Rated lightning impulse withstand voltage kV(peak)
(a)Tapchanger to ground 85 140 350
(b)Between phases 70 170
(c)Over tapping range 45 200
(d)Between adjacent contacts 45 200
(e)Between contacts of pre selector 45 200
Oil quantity 1364 Litres
Weight of tap changer with oil 1810 kg
Dimension of OLTC VIEWCLOSE
T10-P/S-11kV-17P
Specification
Rated voltage 11 kV
Rated through-current 100 A
Direction of power flow Uni-Directional
Tapping arrangement C/F, Reverser
Maximum No of tab position 17
Rated step voltage 300 V
Switching Capacity 30 kVA
Rated Insulation level Highest voltage for equipment kV Rated separate source AC withstand voltage kV(r.m.s) Rated lightning impulse withstand voltage kV(peak)
(a)Tapchanger to ground 12kV 28kV 75kVP
(b)Between phases 28kV 28kV
(c)Over tapping range 10kV 10kV
(d)Between adjacent contacts 10kV 28kV
(e)Between contacts of pre selector 10kV 10kV
Oil quantity 47 Litres
Weight of tap changer with oil 176 KG
Dimension of OLTC VIEWCLOSE
T15--33kV-9P
Specification
Aplicable up to 6/12 MVA
Rated voltage 33 kV
Rated through-current 100 A / 200A
Insulating Medium AIR
Direction of power flow Uni-Directional( Suitable For BI Directional Also )
Tapping arrangement Selector diverter
Arcing contact Vaccum Interupter
Maximum No of tab position 9
Rated step voltage 900 V
Switching Capacity 180 kVA
Rated Insulation level Highest voltage for equipment kV Rated separate source AC withstand voltage kV(r.m.s) Rated lightning impulse withstand voltage kV(peak)
(a)Tapchanger to ground 36kV 70kV 170kV
(b)Between phases 70kV 170kV
(c)Over tapping range 15kV 40KVp
(d)Between contacts 5kV 15KVp
(e)Between contacts of pre selector NA NA
Oil quantity NA
Weight of tap changer with oil 560 KG
Dimension of OLTC VIEWCLOSE
T11-66kV 17P
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Specification
Aplicable up to 34 MVA
Rate voltage 66KV
Rated through current 300A
Direction of power flow Bidirectional
Tapping arrangement linear
Maximum no of tap position 17
Rated Step voltage 900V
Switching capacity 270 KVA
Rated insulation level HV of equpement KV Rated separate source withstand voltage (RMS) Rated lighting Impulse withstand voltage KV (Peak)
(a) Tap changer to ground 72 KV 140KV 350KVp
(B) Between phase 140KV 350KVp
(C) Over taping range 40kv 100kvP
D) Between contact 20kv 70kvP
(E) Between contact of preselector NA NA
Oil qty 535 Litres
Weigth of tap changer with oil 1000kg
Dimension of OLTC VIEWCLOSE
T12-33kV 17P
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Specification
Aplicable up to 12 MVA
Rate voltage 33KV
Rated through current 200A
Direction of power flow Uni direction
Tapping arrangement Linear
Maximum no of tap position 17
Rated Step voltage 900V
Switching capacity 90KVA
Rated insulation level HV of equpement KV Rated separate source withstand voltage (RMS) Rated lighting Impulse withstand voltage KV (Peak)
(a) Tap changer to ground 36KV 70KV 170KVp
(B) Between phase 70KV 170KVp
C) Over taping range 25KV 70KVp
D) Between contact 10KV 40KVp
E) Between contact of preselector NA NA
Oil qty 141 Liters
Weigth of tap changer with oil 363 kg
Dimension of OLTC VIEWCLOSE
T13-11kV 17P
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Specification
Aplicable up to 4 MVA
Rate voltage 11KV
Rated through current 200A
Direction of power flow Uni directional
Tapping arrangement linear
Maximum no of tap position 17
Rated Step voltage 300V
Switching capacity 60KVA
Rated insulation level HV of equpement KV Rated separate source withstand voltage (RMS) Rated lighting Impulse withstand voltage KV (Peak)
a) Tap changer to ground 12KV 28KV 75KV
(B) Between phase 28KV 75KV
C) Over taping range 10KV 40KVP
D) Between contact 10KV 40KVP
E) Between contact of preselector NA NA
Oil qty 89 Liters
Weigth of tap changer with oil 255KG
Dimension of OLTC VIEWCLOSE
T14-33kV 17P C/F
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Specification
Aplicable up to 12 MVA
Rate voltage 33KV
Rated through current 200A
Direction of power flow Bi direction
Tapping arrangement C/F ,Reverser
Maximum no of tap position 17
Rated Step voltage 900V
Switching capacity 90KVA
Rated insulation level HV of equpement KV Rated separate source withstand voltage (RMS) Rated lighting Impulse withstand voltage KV (Peak)
a) Tap changer to ground 36KV 70KV 170KVp
(B) Between phase 70KV 170KVp
C) Over taping range 25KV 70KVp
D) Between contact 25KV 70KVp
E) Between contact of preselector 25KV 70KVp
Oil qty 120 liters
Weight of tap changer with oil 319 KG
Dimension of OLTC VIEWCLOSE
T15-11kV 9P AIRVAC
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Specification
Aplicable up to 2 /4 MVA
Rate voltage 11KV
Rated through current 100A / 200A
Insulating medium AIR
Direction of power flow UNI Directional (Suitable For BI Directional Also)
Tapping arrangement Slector diverter
Arcing contact Vacuum Interupter
Maximum no of tap position 9
Rated Step voltage 300V
Switching capacity 60KVA
Rated insulation level HV of equpement KV Rated separate source withstand voltage (RMS) Rated lighting Impulse withstand voltage KV (Peak)
a) Tap changer to ground 12KV 28KV 75KV
(B) Between phase 28KV 75KV
C) Over taping range 15KV 40KVp
D) Between contact 5KV 15KVp
E) Between contact of preselector NA NA
Oil qty NA
Weigth of tap changer with oil 270KG
Dimension of OLTC VIEWCLOSE
T20-33kV 9P
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Specification
Aplicable up to 12 MVA
Rate voltage 33KV
Rated through current 200A
Direction of power flow Bi direction
Tapping arrangement Linear
Maximum no of tap position 9
Rated Step voltage 900V
Switching capacity 90KVA
Rated insulation level HV of equpement KV Rated separate source withstand voltage (RMS) Rated lighting Impulse withstand voltage KV (Peak)
a) Tap changer to ground 36KV 70KV 170KVp
(B) Between phase 70KV 170KVp
C) Over taping range 25KV 70KVp
D) Between contact 25KV 70KVp
E) Between contact of preselector NA NA
Oil qty 120 liters
Weight of tap changer with oil 289 KG
Dimension of OLTC VIEWCLOSE