SUF-K110
Low frequency protection IED
Control and interlocking of field equipment such as circuit breakers and disconnecting switches. Applied to 170kV GIS PT and ES bays. Programmable trip and control logic, single-line diagram editing on dedicated PC software, 1 ms event recording, IEEE C37.111 COMTRADE fault recording and continuous self-monitoring.
- Frequency
- 60Hz
- Voltage
- Phase voltage
- Power
- DC 125V(90~140V)
- Size
- 445 x 255 x 247mm (W x H x D)
- Weight
- 9.5kg less than
Main functions
- 8-step definite-time underfrequency (81U) protection
- Automatic busbar selection for frequency measurement
- Fast frequency measurement in every ½ cycle
- High-precision frequency measurement within the error range of ±5mHz
- Instantaneous and definite-time phase undervoltage (27) protection for each bus
Specifications
General specification
| Division | Item | Specification |
|---|---|---|
| Operating conditions | Ambient temperature | -25℃ ~ +55℃ |
| Relative humidity | 10% ~ 100% | |
| Elevation | 1,500m less than | |
| Rated | Frequency | 60Hz |
| Voltage | Phase voltage | |
| Power | DC 125V(90~140V) | |
| Enclosure | Size | 445 x 255 x 247mm (W x H x D) |
| Weight | 9.5kg less than | |
| Material | Aluminum |
Hardware specification
| Division | Specification | Note |
|---|---|---|
| Communication port | Ethernet | 100Base-FX, 2 |
| 100Base-T, 1 | ||
| USB | B-Type 1 | |
| Time sync. | IRIG-B 120 or SNTP | |
| RS-232 | D-SUB 9pin (Male-Type), 1 port | Development purposes |
| Contact input | 64 | |
| Contact output | 28 | |
| PT | 8 | |
| AI | 2 | |
| Display | TFT Color Graphic LCD 7" (800 x 480) | |
| Button | 18 | |
| LED | 26 |
