STC-K120
Transformer control IED
IED installed in the local control panel of a 154kV main transformer. Used as the control IED for the main transformer and as the monitoring/control IED for each bank. Provides monitoring and control I/O for the OLTC and cooling equipment, with monitoring, measurement, control and interlock functions on a 7-inch TFT touch LCD.
- Frequency
- 60Hz
- Voltage
- Phase voltage
- Current
- 5A
- Power
- DC 125V(90~140V)
- Size
- 445 x 255 x 247mm (W x H x D)
- Weight
- 9.5kg
A dedicated catalogue for this model is in preparation. The general catalogue covers the product.
Main functions
- Main transformer control function
- Per-bank field monitoring and control of the main transformer
- Monitoring, measurement, control and interlock functions
- Continuous automatic self-monitoring
- IEC 61850 Station Bus Interface
- Serial/Ethernet communication for local/remote access
- Customizable DI, DO, LEDs and function keys
Specifications
General specification
| Division | Item | Specification |
|---|---|---|
| Operating conditions | Ambient temperature | -25℃ ~ +55℃ |
| Relative humidity | 10% ~ 100% | |
| Elevation | 1,500m | |
| Rated | Frequency | 60Hz |
| Voltage | Phase voltage | |
| Current | 5A | |
| Power | DC 125V(90~140V) | |
| Enclosure | Size | 445 x 255 x 247mm (W x H x D) |
| Weight | 9.5kg | |
| Material | Aluminum |
Hardware specification
| Division | Specification | Note |
|---|---|---|
| Communication port | Ethernet | 100Base-FX, 2 |
| 100Base-T, 1 | ||
| RS-232 | Serial 9pin (Male-Type), 2 port | Operational Software |
| Time sync. | IRIG-B 120 or SNTP | |
| Contact input | 48 | |
| Contact output | 28 | |
| CT | 4 | |
| PT | 5 | |
| AI | 4~20mA DC : 10 | |
| Display | TFT Color Graphic LCD 7" (800 x 480) | |
| Button | 18 | |
| LED | 42 |
