35kV Three-phase OLTC Power Transformer
WEIFAN GROUP OLTC power transformer which is equiped with OLTC for regulatoring the voltage in an accurate range. The on load tap changer is also designed and manufactured by WEIFAN GROUP. The power transformer is a main part for used in power transmission and distribution system like substation. It completely complies with IEC 60076 standard for meeting different countries' needs.
Features of 35kV OLTC Power Transformer:
1. Iron core is made of high quality cold-rolled silicon steel sheet.
2. High quality insulated copper wire for windings.
3. Sealed structure, maintenance-free, more than 30 years service life.
4. Great transformer oil (25# 40#).
5. On load tap changer with independent property rights.
Parameters 35kV OLTC Power Transformer:
Usage: Power
Phase: Three
Coil Structure: Toroidal
Coil Number: two windings
Product name: OLTC power transformer
Rated capacity: 10 MVA
Rated voltage: 35 kV
Output Voltage: 6.3/6.6/10/10.5/11 kV
Frequency: 50/60Hz
Material: Copper
Certification: ISO9001
Standard: IEC60076
Connection type: YNd11
Cooling type: ONAF
Rated
Power
(kVA)High
Voltage
(kV)H.V.Tap
rangeLow
Voltage
(kV)Connection
symbolShort
Circuit
Impendence
(%)No-load loss(W) On-load loss(W) No load
current
(%)S9 S10 S11 S9 S10 S11 800 35
38.5±3x2.5% 6.3
6.6
10
10.5
11Yd11
YNd116.5 1320 1190 1060 10500 9980 9980 1.05 1000 1570 1410 1260 12800 12160 12160 1 1250 1860 1670 1490 15400 14630 14630 0.9 1600 2250 2030 1800 18500 17580 17580 0.85 2000 2880 2590 2300 20250 19240 19240 0.8 2500 3400 3060 2720 21730 20640 20640 0.8 3150 7 4040 3640 3230 26010 24710 24710 0.72 4000 4840 4360 3870 30690 29160 29160 0.72 5000 5800 5220 4640 36000 34200 34200 0.68 6300 7.5 7040 6340 5630 38700 36770 36770 0.68 8000 9840 8860 7870 42750 40610 40610 0.6 10000 11600 10440 9280 50580 48050 48050 0.6 12500 8 13680 12310 10940 59850 56860 56860 0.56 16000 16460 14810 13170 74020 70320 70320 0.54 20000 19460 17510 15570 87140 82780 82780 0.54 25000 23700 21330 18960 107000 101650 101650 0.5 31500 27500 24750 22000 126000 119700 119700 0.45