STP-K120
Breaker Failure Protection IED
- Frequency
- 60Hz
- Current
- 5A
- Voltage
- DC 125V (90~140V)
- Size
- 280 x 255 x 247mm (W x H x D)
Main functions
- 2-staged overcurrent detection for each phase
- Receives phase-segregated or three-phase trip signals from external protection IEDs
- Operating timer setting
- Self-monitoring on a regular basis
Specifications
General specification
| Division | Item | Specification | Note |
|---|---|---|---|
| Operating conditions | Ambient temperature | -25℃ ~ +55℃ | |
| Relative humidity | 10% ~ 90% | ||
| Elevation | 1,500m | ||
| Rated | Frequency | 60Hz | |
| Current | 5A | ||
| Voltage | DC 125V (90~140V) | ||
| Auxiliary power source | Single phase | ||
| Enclosure | Size | 280 x 255 x 247mm (W x H x D) | |
| Weight | 8.0kg | ||
| Material | Aluminum |
Hardware specification
| Division | Specification | Note |
|---|---|---|
| Communication port | Ethernet | 100Base-FX, 2 |
| 100Base-T, 1 | ||
| Console(front) | Serial 9pin (Male-Type) 1 port | Operational Software |
| Time sync. | IRIG-B120 or SNTP | |
| Console(back) | Serial 9pin (Male-Type) 1 port | Reserve |
| Contact input | 24 | |
| Contact output | 28 | |
| CT | 3 | |
| Display | TFT Color Graphic LCD 7" (800 x 400) | |
| Button | 18개 | |
| LED | 26 |
