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RCS 36
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Specification
Type reference RCS 36
Applicable standard IEC 62271-100/IS 13118
Rated voltage 33kV
1 min A.C Power Frequency withstand test level 70kV
Impulse withstand 170kVp
Current ratings 2000A
Operating Sequence O-0.3sec-CO-3 min-CO
Maximum Peak Current 66kA
Short Circuit Current(3 Sec) 26.3kA
Rated Short Circuit Making Current 66kA
Rated Short Circuit Breaking Current 26.3kA
First Pole to Clear factor 1.2
Dimension of OLTC VIEWCLOSE
ABS 33
(A)ABS 11
Terminal Board
Drive Mechanism
Specification
Maximum voltage rating 36 kV
Maximum current rating 300 A
Maximum system voltage 38 kV
Tapping arrangement Bi-Directional
OLTC design Coarse-fine/reversing
Tapping arrangement Single compartment
Maximum Number of position 23
Maximum operating step voltage 850 V
Maximum operating voltage Over fine taps 7200 V
Maximum operating voltage over coarse taps 7200 V
Maximum continuous voltage to ground 38000 V
Maximum continuous voltage Between phase 38000 V
Time per tap change 4-6 seconds
Impulse voltage between phase 170 kVp(1.2/50 micro seconds)
Impulse voltage between phase and earth 170 kVp(1.2/50 micro seconds)
Impulse voltage between adjacent contacts 70 / 30 kVp(1.2/50 micro seconds)
Impulse voltage over fine taps 70 / 30 kVp(1.2/50 micro seconds)
Impulse voltage over pre selector (where applicable) 70 kVp
ABS 66
(A)ABS 11
Terminal Board
Drive Mechanism
Specification
Maximum voltage rating 72 kV
Maximum current rating 300 A
Direction of power flow Uni-Directional
Tapping arrangement Linear
OLTC design Single Compartment
Maximum number of tap position 23
Maximum operating step voltage 1000 V
Maximum operating voltage Over tapping range 20000 V
Maximum continuous voltage to ground 72000 V
Maximum continuous voltage between phases 720000 V
Peak emergency current 450 A
Weight of tap changer Without oil 620 Kg
Weight of tap changer with oil 1430 Kg
Oil content 980 liters
Impulse voltage between phases 350 kVp(1.2/50 micro seconds)
Impulse voltage between Tap changer to earth 350 kVp(1.2/50 micro seconds)
Impulse voltage between Adjacent contacts 70 / 30 kVp(1.2/50 micro seconds)
Impulse voltage across tapping Range 70 / 30 kVp(1.2/50 micro seconds)
ABS 132
(A)ABS 11
Terminal Board
Drive Mechanism
Specification
Maximum voltage rating 132 kV(Graded neutral)
Maximum current rating 150 A
Maximum system voltage 85 kV
OLTC design Single Compartment
Maximum number of tap position 17
Maximum continuous current 150 A
Maximum operating step voltage 1800 V
Maximum operating over fine taps 14000 V
Maximum operating voltage over Coarse taps 14000 V
Maximum continuous voltage to Ground 85000 V
Time per tap change 4 – 6 seconds
Weight of tap changer without oil 650 Kg
Weight of tap changer with oil 1810 Kg
Impulse voltage between Tap changer to earth 350 kVp(1.2/50 micro seconds)
Impulse voltage between adjacent Contacts 200 kVp
Impulse voltage over pre selector 200 kVp
Impulse voltage between Selector and fine selector 250 kVp
OLG T5
(A)ABS 11
Terminal Board
Drive Mechanism
Specification
Maximum voltage rating 12 kV
Maximum current rating 100 A
Direction of power flow Bi-Directional
Tapping arrangement coarse-fine/reversible
OLTC design selector switch
Maximum Number of tap position 17
Maximum operating step voltage 250 V
Location of taps Middle of delta winding/Neutral point of star
Maximum continuous voltage to ground -
Maximum operating voltage between first and Last contact of fine selector 4000 V
Maximum operating voltage between contacts Pre selector 4000 V
Impulse voltage with stand between all live parts To ground 75 kVp(1.2/50 micro seconds)
Impulse voltage between adjacent contacts 25 kVp(1.2/50 micro seconds)
Impulse voltage over tapping range 25 kVp(1.2/50 micro seconds)
Impulse voltage between contacts of the Pre selector 25 kVp(1.2/50 micro seconds)
Power frequency voltage between all live parts To ground 28 kV
Power frequency between adjacent contacts 8 Kv
Power frequency over tapping range 8 Kv
Power frequency over tapping range 8 Kv
Weight of tap changer without oil -
Power frequency between contacts of pre selector 8 Kv
Rated insulation level 28 kV of power frequency and 75 kVp impulse