Ⅰ、Purpose and Service conditions
1. Purpose
The control transformer of this series (hereinafter
referred to as transformer) is applied to frequency of
AC 50~60 Hz and circuit of 500V; it is often used as
machine-tool electrical control or power transformer
for local lighting, and also can be used as small power
transformer using for various electric equipment.
2. Service conditions
A height above sea-level not exceeding 1000m;
A temperature of ambient air not below -25℃
and not above +45℃;
Relative air humidity: ordinary type ≤85℃,
damp and hot type ≤95℃;
In medium without risk of explosion and with
too insufficient air and electric insulation dust to
corrode metal and damage insulation;
In environment without water vapor and equipped
with rainproof device.
Ⅱ、Structure
The single-phase multi-winding shell-type
transformers is used as BK series control
transformer, the main structure is shown as follows:
Shell-type is used as iron core,which is laminated;
Windings can be two-winding
or multi-winging.
Ⅲ、Model and implication
1. Model
2. Basic parameters
Ⅳ、Dimensions and install size（Unit: mm）
