Products
On-Load Tap-Changer
T10
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Features
  • Uses 45 Liters of Insulating Oil as against 300 liters required in competitors products
  • Reliable Electronic control minimizes extensive control wiring
  • Applicable up to 2 MVA
  • Built in AVR and optional RTCC with just two wires
Application
  • Permits mounting on small transformers which earlier used Off Circuit Switch
Specification
Aplicable up to 2 /4 MVA
Rate voltage 11KV
Rated through current 100A / 200A
Insulating medium AIR
Direction of power flow Bi directional
Tapping arrangement Slector diverter
Arcing contact Vacuum Interupter
Maximum no of tap position 9
Rated Step voltage 300V
Switching capacity 60KVA
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 28KV 75KVp
(b)Between phases 28KV 75KVp
(c)Over tapping range 15KV 40KVp
(d)Between adjacent contacts 5KV 15KVp
(e)Between contacts of pre selector NA NA
Oil quantity NA
Weight of tap changer with oil 270 kg
Outline Diagram
(A)ABS 11
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Features
  • Maximum rated through Current available in two ranges of 65 A and 100A
  • Suitable for Transformers up to 2000 KVA
  • Eliminates use of Oil
  • Low maintenance required
  • Suitable for Delta/Star applications
Application
  • Applicable for Dry type Distribution transformers
  • It can be used near the load center
  • Mainly used in Indoor applications and it requires weather proof enclosure
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
Outline Diagram
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
Outline Diagram
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
Outline Diagram
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
Outline Diagram
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
Outline Diagram
UAD VAC
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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 Bi directional
Tapping arrangement Slector diverter
Arcing contact Vacuum Interupter
Maximum no of tap position 9
Rated Step voltage 300V
Switching capacity 60KVA
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 75KVp
(c)Over tapping range 15KV 40KVp
(d)Between adjacent contacts 5KV 15KVp
(e)Between contacts of pre selector NA NA
Oil quantity NA
Weight of tap changer with oil 270KG
Outline Diagram