CHINT DTSU666 - Page 2

Notes：
1. For the installation location and wiring of the power sensor, please refer to networking
diagram and the wiring guide, or consult our engineer.
2. For voltage sampling, if the grid L-L voltage is ≤480V, you can connect the wires directly; if
it is >480V, you need to connect PT
3. C&I power sensor do not include CT and PT, which needs to be purchased separately with
the following requirements:
Requirement for C&I Power Sensor
System Networking
CT
Primary rated current I
n
/A
≥Measuring current
Secondary rated current I
o
/A
5A or 1A
Accuracy
≥0.5
The default CT ratio of the
power sensor
Default 200, need to be reset according to the CT ratio
PT
Primary rated voltage/V
≥Measuring voltage
Secondary rated voltage/V
3×57.7V(3P4W), 3×100V(3P3W)
Secondary output capacity/VA
≤20
Accuracy
≥0.5%
The default PT ratio of the
power sensor
Default 1, need to be reset according to the PT ratio
Wiring type
3P4W：PT with Y-Y wiring
3P3W：PT with V-V wiring