Dissolved Gas Analyser
Our industry leading on-line DGA monitors and TM VIEW™ software are monitoring generation, transmission and distribution power transformers worldwide. DGA (dissolved gas analysis) of transformer oil is the single best indicator of a transformer’s overall condition. For the first time, the benefits of on-line condition monitoring can be realized across the distribution transformer fleet.
Throughout your system there are transformers that are vital to the reliability of your grid – GSU’s, large transmission transformers, and critical substation transformers. Serveron DGA transformer monitors provide the important and timely information needed to maintain the reliability and safety of transformer fleets.
- SERVERON®TM1
- SERVERON®TM3
- SERVERON®TM8
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| DGA Method: Solid-state H2 sensor immersed directly in the oil |
|
| Accuracy | ±15% or ±20 ppm |
| Repeatability | ±5% or ±10 ppm |
| Range | 20 – 10,000 ppm |
| Additional Monitoring Options (Optional) | |
|
Moisture-in-Oil |
Accuracy: ±5% Range: 0-100% RS |
|
Oil Temperature |
Accuracy: ±2°C (typically) Range: -40°C to +120°C |
| Gas Analysis Parameters | |
| Oil Sampling Rate | Continuous oil sampling; gas analysis is reported every 30 minutes |
| Data Management | Data is date and time stamped; up to five years of data is stored in memory |
| Display | |
| Display | Integrated display of H2 Level, H2 Rate of Change (ROC), Moisture (optional) and Service Codes. |
| Alarms | |
| Relay Contact Ratings | Max switched Power 100 W or 600 VA Max switched Current 3 A Max switched Voltage 150 VDC or 300 VAC |
| 3 DGA Relays |
Three (3) programmable alarm relays for H2 Level (ppm), H2 Rate of |
| 2 Alarm Relay | Two (2) alarm relays for power and service status |
| External Inputs | |
| Digital Inputs | RS232 for configuration utility and diagnostics USB Mini B for direct connection with computer or USB Thumb Drive |
| Analog Input |
Two (2) analog 4-20 mA inputs for optional moisture probe |
|
Communications |
|
| Standard Interfaces |
RS232 / 485, USB 2.0 |
| Supported Protocols |
DNP3 and Modbus |
| Environmental Specifications |
|
| Operating Temperature | -50°C to +55°C |
| Oil Temperature | -20°C to +105°C |
| Oil Inlet Pressure | 0 to 100 psi (0 to 7 bar) |
| Physical Specifications | |
| Product Dimensions | HxWxD: 9.2 in x 9.9 in x 12.3 in (23.4 cm x 25.1 cm x 31.2 cm) |
| Product Weight | 9 lb (4 kg) |
| Enclosure Rating | NEMA 4X, IP66 |
| Input Power Requirements | |
| Voltage | 100 - 240 VAC |
| Frequency | 50/60 Hz |
| Current | 0.8 A max |
| Radiated and Conducted Emissions | |
| Radiated Emissions | EN 61326-1: 2006 CISPR 11:2009 A1:2010 Class A |
| Conducted Emissions | EN 61326-1: 2006 CISPR 11:2009 A1:2010 Class A |
| Current Harmonics | EN 61000-3-2:2006 A1:2009 A EN 61000-3-2:2006 A1:2009 Class A |
| Voltage Fluctuations | EN 61000-3-3:2008 EN 61000-3-3:2008 Class A |
| Radiated and Conducted Immunity | |
| ESD | EN 61326-1:2006 IEC61000-4-2:2009 |
| Radiated Immunity | EN 61326-1:2006 IEC61000-4-3:2006 A2:2010 |
| EFT | EN 61326-1:2006 IEC61000-4-4:2004 A1:2010 |
| Surge | EN 61326-1:2006 IEC61000-4-5:2006 |
| Conducted RF Immunity | EN 61326-1:2006 IEC61000-4-6:2009 |
| Magnetic Field Immunity | EN 61326-1:2006 IEC61000-4-8:2010 |
| Voltage Dips & Interrupts | EN 61326-1:2006 IEC61000-4-11:2004 |
| Vibration | IEC 60255-21-1 |
| Safety | |
|
Specification |
IEC 61010-1, IEC 61010-2-81, UL 61010-1 (2nd Edition), CSA-C22.2 No. 61010-1-04 |
| DGA Method: Laboratory Grade Gas Chromatography |
|
| Methane (CH4) | Accuracy: ±5% or ±5 ppm Repeatability: <1% Range: 5-7,000 ppm |
| Ethylene (C2H4) | Accuracy: ±5% or ±3 ppm Repeatability: <1% Range: 3-5,000 ppm |
| Acetylene (C2H2) | Accuracy: ±5% or ±1 ppm Repeatability: <2% Range: 1-3,000 ppm |
| Additional Monitoring Options | |
|
Moisture-in-Oil |
Accuracy: ±2% Range: 0-100% RS| |
|
Oil Temperature |
Accuracy: 0.1°C (typically) Range: -40°C to +180°C |
| Gas Analysis Parameters | |
| Oil Sampling Rate | Oil sampling is continuous and gas analysis intervals are user-selectable from 2 hours to 12 hours (Default: 4 hours). Automatic schedule acceleration when rate of change alarm limit is exceeded (Default: 1 hr) |
| Data Management | All data is date and time stamped and up to two years of data is stored in memory |
| Automated Calibration Verification | System performs periodic automated calibration verification to National Institute of Standards and Technology (NIST) traceable gas standard |
| Alarms | |
| Two individually programmable relays | 50 VDC or 240 VAC @ 3 A max. (125 VDC @ 1 A max.); relay contacts operate as normally open or normally closed |
| Supported Alarms |
Gas Caution & Alarm for Level (ppm), Rate-of-Change (ppm/day), Power and/or Service Event |
| External Sensor Inputs | |
| Analog Inputs | Three (3) analog 4 to 20 mA inputs, ambient temperature sensor included. Optional sensors include transformer load guide and moisture-in-oil with temperature probe (uses 2 inputs) |
|
Communications |
|
| Standard Interfaces |
RS-232, RS-485, Ethernet Fiber (100Base-FX), V.92 Internal POTS modem |
| Optional Interfaces |
Cellular modem, Ethernet Copper (10/100Base‑TX), Wireless Radio |
| Supported Protocols |
TCP/IP, DNP3, Modbus RTU, ASCII, OPC and IEC 61850 |
| Environmental Specifications |
|
| Operating Temperature | -50°C to +55°C |
| Cold Start Temperature | -20°C |
| Operating Humidity | 5% to 95% RH, non-condensing |
| Oil Inlet Pressure | 0 to 45 psi (0 to 3 bar) |
| Storage Temperature | -40°C to +75°C |
| Storage Humidity | 5% to 95% RH, non-condensing |
| Physical Specifications | |
| Product Dimensions | HxWxD: 22.0 in x 20 in x 11.2 in (55.9 cm x 50.8 cm x 28.4 cm) |
| Packaging Dimensions | 26.4 in x 26.4 in x 15.9 in (67 cm x 67 cm x 40.3 cm) |
| Product Weight | 65 lb (29.5 kg) |
| Shipping Weight | 70 lb (31.8 kg) (monitor package only) |
| Enclosure Rating | NEMA 4X, IP66 |
| Input Power Requirements | |
| Voltage | 115 VAC or 230 VAC ±15% |
| Frequency | 50/60 Hz |
| Current | 6 A maximum @ 115 V; 3 A maximum @ 230 V |
| Radiated and Conducted Emissions | |
| Radiated Emissions | EN 61326-1: 2006 CISPR 11:2009 A1:2010 Class A |
| Conducted Emissions | EN 61326-1: 2006 CISPR 11:2009 A1:2010 Class A |
| Current Harmonics | EN 61000-3-2:2006 EN 61000-3-2:2006 A1:2009 Class A |
| Voltage Fluctuations | EN 61000-3-3:2008 EN 61000-3-3:2008 Class A |
| Radiated and Conducted Immunity | |
| ESD | EN 61326-1:2006 IEC61000-4-2:2009 |
| Radiated Immunity | EN 61326-1:2006 IEC61000-4-3:2006 A2:2010 |
| EFT | EN 61326-1:2006 IEC61000-4-4:2004 A1:2010 |
| Surge | EN 61326-1:2006 IEC61000-4-5:2006 |
| Conducted RF Immunity | EN 61326-1:2006 IEC61000-4-6:2009 |
| Magnetic Field Immunity | EN 61326-1:2006 IEC61000-4-8:2010 |
| Voltage Dips & Interrupts | EN 61326-1:2006 IEC61000-4-11:2004 |
| Safety | |
|
Specification |
IEC 61010-1, IEC 61010-2-81, UL 61010-1 (2nd Edition), CSA-C22.2 No. 61010-1-04 |
| DGA Method: Laboratory Grade Gas Chromatography |
|
| Hydrogen (H2) | Accuracy: ±5% or ±3 ppm Repeatability: <2% Range: 3-3,000 ppm |
| Oxygen (O2) | Accuracy: ±5% or +30/-0 ppm Repeatability: <1% Range: 30-25,000 ppm |
| Methane (CH4) | Accuracy: ±5% or ±5 ppm Repeatability: <1% Range: 5-7,000 ppm |
| Carbon Monoxide (CO2) | Accuracy: ±5% or ±5 ppm Repeatability: <2% Range: 5-10,000 ppm |
| Carbon Dioxide (CO2) | Accuracy: ±5% or ±5 ppm Repeatability: <1% Range: 5-30,000 ppm |
| Ethylene (C2H4) | Accuracy: ±5% or ±3 ppm Repeatability: <1% Range: 3-5,000 ppm |
| Ethane (C2H6) | Accuracy: ±5% or ±3 ppm Repeatability: <1% Range: 5-5,000 ppm |
| Acetylene (C2H2) | Accuracy: ±5% or ±1 ppm Repeatability: <2% Range: 1-3,000 ppm |
| Nitrogen (N2) | Accuracy: ±10% or ±5,000 ppm Repeatability: <20% Range: 5,000-100,000 ppm |
| Additional Monitoring Options | |
|
Moisture-in-Oil |
Accuracy: ±2% Range: 0-100% RS| |
|
Oil Temperature |
Accuracy: 0.1°C (typically) Range: -40°C to +180°C |
|
Total Dissolved Gases |
|
|
True Total Combustible Gas |
True Total Dissolved Combustible Gas (TDCG) output is available reporting 100% of detected level in PPM for H2, C2H2, C2H4, CO, CH4, C2H6 |
|
Total Hydrocarbons |
Total Hydrocarbons (THC) output is available reporting 100% of detected level in PPM for CH4, C2H2, C2H4, C2H6 |
| Gas Analysis Parameters | |
| Oil Sampling Rate | Oil sampling is continuous and gas analysis intervals are user-selectable from 2 hours to 12 hours (Default: 4 hours). Automatic schedule acceleration when rate of change alarm limit is exceeded (Default: 1 hr) |
| Data Management | All data is date and time stamped and up to two years of data is stored in memory |
| Automated Calibration Verification | System performs periodic automated calibration verification to National Institute of Standards and Technology (NIST) traceable gas standard |
| Alarms | |
| Two individually programmable relays | 50 VDC or 240 VAC @ 3 A max. (125 VDC @ 1 A max.); relay contacts operate as normally open or normally closed |
| Supported Alarms |
Gas Caution & Alarm for Level (ppm), Rate-of-Change (ppm/day), Power and/or Service Event |
| External Sensor Inputs | |
| Analog Inputs | Three (3) analog 4 to 20 mA inputs, ambient temperature sensor included. Optional sensors include transformer load guide and moisture-in-oil with temperature probe (uses 2 inputs) |
|
Communications |
|
| Standard Interfaces |
RS-232, RS-485, Ethernet Fiber (100Base-FX), V.92 Internal POTS modem |
| Optional Interfaces |
Cellular modem, Ethernet Copper (10/100Base‑TX), Wireless Radio |
| Supported Protocols |
TCP/IP, DNP3, Modbus RTU, ASCII, OPC and IEC 61850 |
| Environmental Specifications |
|
| Operating Temperature | -50°C to +55°C |
| Cold Start Temperature | -20°C |
| Operating Humidity | 5% to 95% RH, non-condensing |
| Oil Inlet Pressure | 0 to 45 psi (0 to 3 bar) |
| Storage Temperature | -40°C to +75°C |
| Storage Humidity | 5% to 95% RH, non-condensing |
| Physical Specifications | |
| Product Dimensions | HxWxD: 22.0 in x 20 in x 11.2 in (55.9 cm x 50.8 cm x 28.4 cm) |
| Packaging Dimensions | 26.4 in x 26.4 in x 15.9 in (67 cm x 67 cm x 40.3 cm) |
| Product Weight | 65 lb (29.5 kg) |
| Shipping Weight | 70 lb (31.8 kg) (monitor package only) |
| Enclosure Rating | NEMA 4X, IP66 |
| Input Power Requirements | |
| Voltage | 115 VAC or 230 VAC ±15% |
| Frequency | 50/60 Hz |
| Current | 6 A maximum @ 115 V; 3 A maximum @ 230 V |
| Radiated and Conducted Emissions | |
| Radiated Emissions | EN 61326-1: 2006 CISPR 11:2009 A1:2010 Class A |
| Conducted Emissions | EN 61326-1: 2006 CISPR 11:2009 A1:2010 Class A |
| Current Harmonics | EN 61000-3-2:2006 EN 61000-3-2:2006 A1:2009 Class A |
| Voltage Fluctuations | EN 61000-3-3:2008 EN 61000-3-3:2008 Class A |
| Radiated and Conducted Immunity | |
| ESD | EN 61326-1:2006 IEC61000-4-2:2009 |
| Radiated Immunity | EN 61326-1:2006 IEC61000-4-3:2006 A2:2010 |
| EFT | EN 61326-1:2006 IEC61000-4-4:2004 A1:2010 |
| Surge | EN 61326-1:2006 IEC61000-4-5:2006 |
| Conducted RF Immunity | EN 61326-1:2006 IEC61000-4-6:2009 |
| Magnetic Field Immunity | EN 61326-1:2006 IEC61000-4-8:2010 |
| Voltage Dips & Interrupts | EN 61326-1:2006 IEC61000-4-11:2004 |
| Safety | |
|
Specification |
IEC 61010-1, IEC 61010-2-81, UL 61010-1 (2nd Edition), CSA-C22.2 No. 61010-1-04 |
