Model Number: CDT-100
The CDT-100 centralized distribution automation terminal unit integrates a variety of communication interfaces and flexible configuration options, allowing it to meet the complex monitoring needs of different distribution networks. This terminal focuses on critical distribution scenarios such as outdoor ring main units and indoor switchgear, providing accurate real-time monitoring of key parameters including voltage, current, zero-sequence current, and equipment status. Its core features include efficient remote signaling, measurement, and control capabilities, ensuring the safety and reliability of the distribution system.
Specification
Parameter Category
Parameter Index
Rated AC Input Voltage
220VAC / 110VAC / 57.74VAC
Rated AC Input Current
5A / 1A
AC Power Supply
220VAC
DC Power Supply
220VDC / 110VDC
Frequency
50Hz
DC Operating Voltage
48VDC
AC Voltage Current
＜0.5VA / phase
AC Current Current
＜0.75VA / phase
AC Voltage
2 times the rated voltage, continuous operation
AC Current
2 times the rated current, continuous operation; 20 times the rated current, allowed for 1 second
AC Voltage and Current Sampling Accuracy
Class 0.5
Active and Reactive Power Sampling Accuracy
±1%
Frequency Sampling Accuracy
0.01Hz, sampling range 45Hz - 55Hz
Fault Current Input Range
10In (In is the rated input current) linear range; total error of fault current ≤ ±3%
Remote Signal Input Method
Passive contact
Remote Signal Input Loop
Optical isolation
Remote Signal Contact Voltage
24VDC
Remote Signal Transmission Time During Fault
＜1 second
Remote Control Output Method
Relay normally open contact
Remote Control Contact Capacity
48VDC, 16A or 250VAC, 8A
Main Power Supply for Distribution Automation Terminal
AC 220VAC / 110VAC ±20%
Terminal Backup Power Supply
Standard equipped with a battery
Overall Power Consumption
＜30W