KEPA-1000
Portable Substation Preventive Diagnostic Gas Analyzer
- Model
- KEPA-1000
- Manufacturer
- SENSORONIC
- Category
- Gas Analyzers › Substation (GIS/GIT) Gas Analyzers
Parameters: H2O, SF6, SO2, CO, CO2, Pabs, Pdif, Tamb, Flow
Overview
KEPA-1000 is a portable direct-reading preventive diagnosis analyzer that assesses the condition of gas-insulated transformers (GIT) and gas-insulated switchgear (GIS) in service. It measures and analyzes insulation decomposition gases and SF6 decomposition gases on site and immediately produces a diagnosis.
It simultaneously measures SF6 purity, moisture, SO2, CO, CO2 and breaker pressure; a patented algorithm removes CO interference on SO2 and compensates for temperature and pressure effects on each sensor. By combining analysis data with an accumulated database, it automatically identifies fault types such as partial discharge, overheating/degradation and internal discharge.
It includes an MFC for automatic sample flow control, pump-back re-injection and gas recovery, an 8-inch color touch screen and a 24-column mini printer.
Key Features
- Simultaneous measurement of SF6 purity, moisture, SO2, CO, CO2, insulation decomposition gases and breaker pressure
- Two modes: gas-insulated transformer (GIT) and gas-insulated switchgear (GIS)
- Preventive diagnosis solution with a patented algorithm
- CO interference on SO2 is removed and applied to the diagnosis algorithm
- Temperature and pressure interference compensation for each sensor
- Immediate on-site analysis and diagnosis of insulation decomposition gases from GIT and GIS
- On-site condition diagnosis combining analysis data with the accumulated database
- Insulation decomposition gases from partial discharge, overheating/degradation and internal discharge
- and automatic identification of the cause (fault type) of abnormal SF6 decomposition gas
- Modular sensor design for easy calibration and maintenance
- Review of measurement data and results, with output to the built-in 24-column mini printer
- MFC for automatic sample gas flow control
- Pump-back re-injection of the sample gas used for measurement
- Used gas can be stored in a recovery device (Tedlar bag)
- Digital storage and review of analysis data to build a database
- 8-inch color TFT-LCD with interactive touch-screen user interface
Measured Parameters
| Parameter | Measuring Range |
|---|---|
| H₂O | -60℃~+20℃ |
| SF₆ | 0~100%vol |
| SO₂ | 0~10ppmvol |
| CO | 0~1,000ppmvol |
| CO₂ | 0~5,000ppmvol |
| Pabs | 0~10Bar |
| Pdif | -600~120mBar |
| Tamb | -40℃~125℃ |
| Flow | 350~1,000sccm |
| Temperature | 0-125C |
| Humidity | 0-100% |
Measurement Performance
| Parameter | Method · Accuracy · Resolution |
|---|---|
| H₂O | Method: Polymer · Accuracy: ±2℃ · Resolution: 0.1 |
| SF₆ | Method: NDIR · Accuracy: <±0.5FS · Resolution: 0.1 |
| SO₂ | Method: UV-DOAS · Accuracy: <±1%FS · Resolution: 0.1 |
| CO | Method: Electrochemical · Accuracy: <±2%FS · Resolution: 1 |
| CO₂ | Method: NDIR · Accuracy: <±30 · Resolution: 1 |
| Pabs | Method: Mass Flow · Accuracy: ±1.5%FS · Resolution: 0.1 |
| Pdif | Method: Mass Flow · Accuracy: ±0.5%FS · Resolution: 1 |
| Tamb | Method: Capacittance · Accuracy: ±0.2℃ · Resolution: 0.1 |
| Flow | Method: MFC (for SF₆) · Accuracy: <±2% · Resolution: 1 |
Specifications
| Manufacturer | SENSORONIC |
|---|---|
| Display | LCD : 8inch TFT-Color LCD / 800X480 pixel / Illuminance : 500cd/㎥ / Touch screen |
| Warm-up | 5Minute |
| Memory | 64GB |
| Data backup | USB |
| Connection | Quick Coupling with 2.5m Flexible Tube |
| Mass Time setup | 3, 5, 8, 10Minutes User’s setup |
| Sample Flow setup | 350sccm, 700sccm, 1,000sccm Selectable |
| Printer | 24Column Thermal Printer |
| Recovery Pressure | 30Bar(Max) |
| Purge | 600cc/min (Vacuum pump) |
| Power consumption | 80VA |
| Dimensions | 375mm(W) X 220mm(H) X 245mm(D) |
| Power supply | Lithium-ion Rechargeable Battery 12V/18A |
| Weight | 11kg |
| Options | Recovery system (pump back) / pressure: 30 bar |
Applications
- Gas-insulated switchgear
- Transformer
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