Page 55 - YINGMING POWER(HIGH & LOW VOLTAGE SWITCHGEARS)

SCB10、SCB13
EPOXY RESIN CAST DRY-TYPE
TRANSFORMER YINGMING POWER
Iron core

◆ The iron core is made of high-permeability, high-quality grain-oriented cold-rolled silicon steel sheet, 45 ° full oblique stepping seam, the iron core
adopts a special square tube pull plate structure, the core column is bound with insulating tape, and the surface of the iron core is coated with special
resin Covered with moisture and rust, it effectively reduces no-load loss, no-load current and iron core noise.
◆ Safe, flame-retardant and fire-proof, no pollution, can be directly installed in the load center.
◆ Maintenance-free, easy to install, and low comprehensive operating cost.
◆ Good moisture resistance, normal operation at 100% humidity, can be put into operation without pre-drying after shutdown.
◆ Low loss, low partial discharge, low noise, strong heat dissipation capacity, equipped with a perfect temperature protection control system, to provide
reliable guarantee for the safe operation of the transformer.
◆ High reliability. According to the operation research on the products that have been put into operation, the reliability index of the products has
reached the international advanced level.

Foil coil
The low-voltage winding adopts the whole section of copper foil, together with the F-level turn insulation on the special low-voltage foil winding
machine. Foil coils solve the outstanding problems of low voltage, high current coil wire-wound products, short circuit stress, ampere-turn imbalance,
poor heat dissipation, winding helix angle, and unstable welding quality. At the same time, the winding ends of our company are potted with resin,
cured and formed, and protected from moisture and dirt.

Temperature control device
The transformer adopts BWDK series signal thermometer, and the temperature measuring element is embedded in the upper half of the low-voltage
coil, which can automatically detect and tour the working humidity of the three-phase coil. And there are over-temperature alarm and trip functions.

The main technical parameters

Voltage combination (120° kW)loss Short weight(kg)
Rated capacity high Junction No-load circuit
current
(kVA) pressure High voltage tap pressure group label No load load (%) impedance Oil weight Total weight
(kV) range (%) (kV) (%)
30 0.71 0.19 1.6 250 320
50 1 0.27 1.4 370 460
63 1.38 0.37 1.2 460 550
80 1.57 0.4 1.1 490 580
100 1.85 0.47 1.0 570 680
125 2.13 0.54 1.0 640 750
4
160 2.52 0.62 0.9 775 890
200 2.75 0.72 0.8 895 1030
6
250 6.3 3.47 0.88 0.8 1100 1250
6.6 ±5% Yyn0
315 0.4 3.99 0.98 0.7 1200 1350
10 ±2x2.5% Dyn11
400 10.5 4.88 1.16 0.7 1460 1610
11
500 5.87 1.34 0.6 1680 1840
630 5.96 1.3 0.6 1800 1980
800 6.95 1.52 0.5 2130 2310
1000 8.13 1.77 0.45 2520 2720
1250 9.69 2.09 0.45 6 3075 3300
1600 11.73 2.45 0.45 3670 3900
2000 14.45 3.32 0.4 4420 4670
2500 17.17 4.0 0.4 5310 5580

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