12
3
.2 Operation conditions
1). The operating temperature of the tap-changer in oil is ≥ -25℃ and ≤ +105℃ with overload up to
+115℃ according to IEC 60214-1.
2). The storage environment temperature of the tap-changer is ≥ -25℃and ≤ +40℃, and the humidity
should be not higher than 85%. If beyond this standard, please mark your requirements before
ordering. The tap-changer material and accessories will be specially processed to meet the special
requirements of the environment.
3). After being mounted to the transformer, the non-perpendicular degree between the tap-changer and
the ground should be less than 2%。
4). No sever dust and other explosive or corrosive gases on the installation site.
P! Probihition!
Do not store the tap-changer or motor drive unit in a place with high humidity (≥85%). This
will cause condensation.
NOTE!
Special design is available to meet particular environment conditions. Please contact
Huaming for further information.
4. Type designation
4.1 Type designation
SHZV tap-changers have a variety of specifications due to different combinations of the number of
phases, the maximum rated through current, the highest voltage of the equipment, the insulation class of
the selector and the connection mode. Therefore, the above-mentioned performance parameters should
be clearly reflected in the model of the tap-changer, and the detailed description of each code is shown
in Figure 4-1.
SHZV III – 600 Y/ 126 C 12233W
Figure 4-1 SHZV model designation
To Next Page
Loading...
