Model Number: CFT-380
The CFT-380 Distribution Automation Feeder Terminal Unit is equipped with high-precision current and voltage measurement modules, along with accurate control logic. It efficiently performs fault diagnosis and handling, and it can be integrated with distribution devices such as load switches and circuit breakers. This terminal is suitable for monitoring and protecting the initial segment, main trunk lines, and critical branch circuits of the power grid, enabling real-time monitoring of the distribution network to maintain the stable operation of the power system.
Specification
|
Parameter Category |
Parameter Specification |
|
Operating Power Supply |
AC 220V ± 20% |
|
Nominal Voltage Input |
Phase Voltage: AC 3.25V; Zero Sequence Voltage: AC 6.5V/3 |
|
Nominal Current Input |
Phase Current: AC 1V; Zero Sequence Current: AC 0.2V |
|
Frequency |
50Hz |
|
Remote Signal Power Supply |
DC 24V |
|
Operating Power Supply |
DC 220V (Permanent Magnet Operating Mechanism) |
|
Communication Power Supply |
DC 24V |
|
Total Power Consumption |
≤ 20VA (excluding communication module and backup power) |
|
AC Voltage |
1.5 times rated voltage: Continuous operation |
|
AC Current |
2 times rated current: Continuous operation; 20 times rated current: Allowed for 1 second |
|
Voltage Measurement Accuracy |
Phase Voltage ≤ 0.5% (Class 0.5); Zero Sequence Voltage: ≤ 0.5% (Class 0.5) |
|
Current Measurement Accuracy |
Phase Measurement ≤ 0.5% (≤ 1.2In); Phase Protection Value ≤ 3% (≤ 10In); Zero Sequence Current: Class 0.5 |
|
Power Measurement Accuracy |
Active and Reactive Power Accuracy ≤ 1% (Class 1) |
|
Energy Collection Accuracy |
Active Energy: Class 0.5; Reactive Energy: Class 2 |
|
DC Sampling Accuracy |
Class 0.5 |
|
Frequency Measurement Accuracy |
≤ ±0.02Hz |
|
Contact Capacity |
AC 250V/5A; DC 24V 16A; DC 80V/2A or DC 110V/0.5A for resistive load |
|
Backup Power Supply Performance |
Backup power options include batteries (lead-acid or lithium) or supercapacitors |
|
Inherent Action Time for Short-Circuit Protection |
≤ 20ms |
|
Accuracy of Time Setting Value |
≤ ±1% or 40ms |
|
Timekeeping Accuracy (Daily Error) |
≤ 1s |
|
Protection Performance |
IP65 |
|
Industrial Grade Product |
Operating Temperature Range (-40°C to +70°C); Resistant to magnetism, vibration, moisture, lightning, dust, and corrosion |
|
Mean Time Between Failures |
≥ 50,000 hours |
|
Remote Control Contact Lifespan |
100000 Times |