3
DC resistance
Range
0~300Ω
accuracy
0.2%±2mΩ
Burden
Range
0~1000VA
accuracy
0.2%±0.02VA
Power supply
AC220V±10%
，
50Hz
Environmental Conditions
Operating temperature : -10
ο
C~50
ο
C
，
Humidity :≤90%
Weight and Dimensions
Dimensions: 365 mm×290
mm×153mm,Weight<10kg
II.User Interface And Method Of Operation
2.1 Current Transformer
In Para interface, use the Rotating mouse to switch cursor in transformer type frame, and
then choose the current transformer (CT).
2.1.1 Test Connection
Used for selecting one or more experiment item, including four options such as
resistance, excitation, ratio, burden etc. According to transformer type, four options can be
combinated as shown in below table.
Table 2.1
CT experiment project description
experiment item
Description
Connection
diagram
resistance excitation ratio
error
limit
burden
√
Measure CT’s
secondary winding
resistance
Fig 2.1,can
disconnection if
measuring
primary
winding.
√
√
Measure CT’s
secondary winding
resistance and
excitation
characteristic
Fig 2.1,can
disconnection if
measuring
primary
winding.
√
√
√
Measure CT’s
secondary winding
resistance, check
it’s ratio and
polarity
Fig 2.1
