Other
S11-MD Series
SH15-M Series
ST11-M Series
KS11 Series
ST11-M 10kv/20kv combined off-load transformers

  Introduction

  • The capacity of ST11-M transformers could be adjusted, the ratio of low/high capacity is 1:3, by adjusting the capacity of the transformer during low-load period, the loss could be reduced, the products are used mainly for rural application where the load fluctuates one season to another. It complies the energy-saving policy, and thus could be used in various industries.

    

  Features

  • Core made of high quality cold-rolled silicon steel. 45 degree Step-lapped core structure , thereby reducing the no-load loss and no-load current.
  • High quality oxygen-free copper winding for both high and low voltage sides, high-voltage in the automatic winding machine low-voltage windings with wire (foil) type winding structure.
  • New type of insulation, Strong short circuit withstand capability .
  • Secure, reliable, easy-installation new type switch applied.
  • High-quality corrugated tank with modern folding technology, compact airtight preventing early oil aging.

 SELECTION CHART

  10KV PRIMARY,400V~1000V SECONDARY

型号
Type
容量
Capacity
(kVA)
电压组合(HV/LV) 联结组
标号
Connection
空载损耗
No-Load
loss(w)
负载损耗
Load
loss(w)
空载电流
No-Load
Current(%)
短路阻抗
Impedance
Voltage(%)
轨距
Gauge
(mm)
高压
HV(kV)
分接范围
(%)
低压
LV(kV)
ST11-M-160/10 160/50

6

6.3

6.6

10

10.5

11

±5%

 

0.4

Yyn0

Dyn11

290/130 2200/870 1.4 4.0 550*550
ST11-M-200/10 200/63 330/150 2600/1040 1.3 550*550
ST11-M-250/10 250/80 400/180 3050/1250 1.2 550*550
ST11-M-315/10 315/100 480/200 3650/1500 1.1 550*550
ST11-M-400/10 400/125 570/240 4300/1800 1.0 660*660
ST11-M-500/10 500/160 680/290 5100/2200 1.0 660*660
ST11-M-630/10 630/200 810/330 6200/2600 0.9 4.5 820*820