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Board Overview
This line protection board monitors AC power lines feeding Mark V turbine systems. You can install GE DS2020LPPA340A directly into Mark V control cabinet racks. The unit detects overvoltage, undervoltage, and frequency anomalies. It triggers alarms or shutdowns when power quality degrades.
Technical Specifications
| Parameter | Value |
|---|---|
| Dimensions (W x H x D) | 250 mm x 100 mm x 40 mm |
| Weight | 0.58 kg |
| Voltage sensing inputs | 3 phases + neutral |
| Nominal input voltage | 120V AC or 240V AC (selectable) |
| Overvoltage trip | 110% to 130% of nominal (adjustable) |
| Undervoltage trip | 70% to 90% of nominal (adjustable) |
| Frequency trip | ±5% of 50/60 Hz |
| Trip response time | < 50 ms for severe events |
| Output relays | 2 Form C (alarm and trip) |
| Relay contact rating | 5A at 250V AC |
| Status indicators | 6 LEDs (phase status, trip, alarm) |
| Total onboard components | 198 discrete parts |
| Energy storage type | Electrolytic and ceramic capacitors |
| Energy storage rating | 1200 µF at 50V DC |
| Operating temperature | -20°C to +60°C |
Board Layout and Components
The PCB routes each phase voltage through independent sensing circuits. Three comparators evaluate voltage levels against adjustable thresholds. Moreover, 198 discrete components include frequency counters and output drivers. Electrolytic capacitors filter noise from the AC sensing inputs. Consequently, the board detects power anomalies without nuisance tripping.
Installation Process
You can mount GE DS2020LPPA340A inside Mark V cabinet racks. The screw terminals accept direct connection to AC power lines. Furthermore, the output relays connect to the turbine trip system. DIP switches allow configuration of voltage thresholds and trip delays easily.
Performance Advantages
This board responds to severe overvoltage events in under 50 milliseconds. The adjustable thresholds accommodate various plant power standards. Therefore, the board protects turbines from grid disturbances effectively. The dual relay outputs also provide both alarm and trip functions.
Safety and Compliance
GE DS2020LPPA340A meets CE and RoHS industrial standards. The board discharges stored energy below 5V within ten seconds. Hence, technicians face minimal electrical risk during testing or replacement.