Questions and Answers
What measurement components are included in the DGA 2 version?
Which component is optional in the design of the MSENSE® DGA 2/3?
What is the primary function of the ball valve locking lever in the device?
What type of communication interface is available in the MSENSE® DGA 2/3?
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What is the length of the measuring pipe available for the MSENSE® DGA 2/3?
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What is the lower detection limit for CO?
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What is the measuring accuracy for H2?
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What is the sensor resolution for humidity measurement?
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Which of the following is true about the installation altitude conditions?
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What is the upper detection limit for humidity?
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What is the measured oil temperature range for the device during operation?
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What is the maximum ambient temperature under which the device can operate?
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What is the purpose of the safety chain associated with the mechanical connection?
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Which measuring pipe length is the shorter option available for the device?
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What is the ambient humidity range in which the device can operate?
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What is the primary application of MSENSE® DGA 2/3?
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Which additional signal protocol is an optional feature for the device?
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What guidelines govern the determination of moisture in oil using the MSENSE® DGA 2/3?
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What type of flange is specified for mounting the device?
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What additional accessory is mentioned for the MSENSE® DGA 2/3?
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What is the degree of protection for the device?
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What material is used for the gaskets of the device?
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What is the maximum pressure resistance of the device?
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Which materials are mentioned as used for the external parts of the device?
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What is the vacuum resistance duration specified for the device?
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The MSENSE® DGA 2/3 can only measure gas concentration in mineral-based transformer insulating oil.
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For the MSENSE® DGA 2/3, an optional protocol converter is required to use DNP 3.0.
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The accessory mentioned for the MSENSE® DGA 2/3 is a power supply unit for the protocol converter.
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The maximum pressure ratings for DN50 and DN80 flanges are both PN16.
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IEC 60296:2012 is the standard for determining the gas concentration in transformer oil.
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The upper detection limit for CO is 2,000 ppm.
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Humidity can only be measured with an accuracy of ±1.8%RH.
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The sensor resolution for H2 measurement is 2 ppm.
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The conditions of use for the device are limited to indoors only.
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The lower detection limit for humidity measurement is 5% RH.
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The MSENSE® DGA 2/3 has a pressure resistance of up to 500 kPa.
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Stainless steel and aluminum are used for all external parts of the MSENSE® DGA 2/3.
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The MSENSE® DGA 2/3 dimensions for the version with a long measuring pipe are 657 x 218 x 264 mm.
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The DGA 2 version measures H2 and CO in oil.
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The device is designed to be operated in an ambient humidity range of 0 to 100%.
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The measuring pipe length options for the MSENSE® DGA 2/3 are 285 mm and 507 mm.
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FPM (Viton®) is the gasket material used in the MSENSE® DGA 2/3.
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The optional display on the MSENSE® DGA 2/3 is primarily for showing the oil temperature.
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The MSENSE® DGA 3 does not measure moisture in oil.
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The MSENSE® DGA 2/3 uses a 5-pole interface for Modbus RTU communication.
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The device can operate at an oil temperature of up to +115°C.
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The mechanical connection of the device requires a socket of type Luer lock.
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The ambient humidity range for the device is between 20% and 80% RH.
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The device must be stored at a temperature range of -40°C to +60°C.
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There is only one length of the measuring pipe available for the device.
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Study Notes
MSENSE® DGA 2/3 Overview
- MSENSE® DGA 2/3 is an online oil analysis device designed for measuring gas concentrations, moisture, and oil temperature in mineral-based transformer insulating oil.
Measurement Capabilities
- DGA 2 measures hydrogen (H2) and moisture in oil.
- DGA 3 measures hydrogen (H2), carbon monoxide (CO), moisture in oil, and oil temperature.
- Measurement accuracy for H2 is ±10%, CO ±15%, humidity ±1.8% RH, and oil temperature ±1°C.
Detection Limits
- Lower detection limit for H2 is 15 ppm, CO is 25 ppm, humidity is 3% RH, and oil temperature is -20°C.
- Upper detection limit for H2 and CO is 2,000 ppm; humidity is 90% RH; oil temperature is +115°C.
Operating Conditions
- Suitable for indoor and outdoor use across all climate zones.
- Can operate at an altitude of up to 4,000 meters above sea level.
- Functional in ambient temperatures ranging from -40°C to +60°C and oil temperatures from -20°C to +115°C.
Mechanical Properties
- Connects via a ball valve with configurable flange options (DN50 or DN80).
- Two lengths for the measuring pipe: 285 mm (short) and 507 mm (long) to optimize measuring conditions.
- Oil extraction via a Luer lock socket; includes adapter set for safe oil extraction.
Device Specifications
- Optional VFD display for real-time readings and messages.
- Constructed from stainless steel and aluminum; parts in contact with oil are weather and UV resistant.
- IP66 rating indicates high resistance to dust and water ingress.
Dimensions and Weight
- Physical dimensions vary based on measuring pipe length: 435 mm (short) or 657 mm (long) x 218 mm x 264 mm.
- Weight is approximately 12 kg for the short pipe and 14 kg for the long pipe (excluding accessories).
Signal Protocols and Communication
- Supports DNP 3.0, Modbus TCP, and optional IEC 61850-8-1 MMS protocols.
- Requires additional protocol converter for certain signal protocols.
Accessories and Versions
- Optional power supply units and offshore-specific versions available for harsher environments.
- Standard installation location is directly on the transformer tank or within oil cooling pipes.
Protection and Safety Features
- Vacuum resistant to 5 Pa for 48 hours and pressure resistant up to 400 kPa.
- Includes safety chain for secure installation and removal.
MSENSE® DGA 2/3 Overview
- MSENSE® DGA 2/3 is an online oil analysis device designed for measuring gas concentrations, moisture, and oil temperature in mineral-based transformer insulating oil.
Measurement Capabilities
- DGA 2 measures hydrogen (H2) and moisture in oil.
- DGA 3 measures hydrogen (H2), carbon monoxide (CO), moisture in oil, and oil temperature.
- Measurement accuracy for H2 is ±10%, CO ±15%, humidity ±1.8% RH, and oil temperature ±1°C.
Detection Limits
- Lower detection limit for H2 is 15 ppm, CO is 25 ppm, humidity is 3% RH, and oil temperature is -20°C.
- Upper detection limit for H2 and CO is 2,000 ppm; humidity is 90% RH; oil temperature is +115°C.
Operating Conditions
- Suitable for indoor and outdoor use across all climate zones.
- Can operate at an altitude of up to 4,000 meters above sea level.
- Functional in ambient temperatures ranging from -40°C to +60°C and oil temperatures from -20°C to +115°C.
Mechanical Properties
- Connects via a ball valve with configurable flange options (DN50 or DN80).
- Two lengths for the measuring pipe: 285 mm (short) and 507 mm (long) to optimize measuring conditions.
- Oil extraction via a Luer lock socket; includes adapter set for safe oil extraction.
Device Specifications
- Optional VFD display for real-time readings and messages.
- Constructed from stainless steel and aluminum; parts in contact with oil are weather and UV resistant.
- IP66 rating indicates high resistance to dust and water ingress.
Dimensions and Weight
- Physical dimensions vary based on measuring pipe length: 435 mm (short) or 657 mm (long) x 218 mm x 264 mm.
- Weight is approximately 12 kg for the short pipe and 14 kg for the long pipe (excluding accessories).
Signal Protocols and Communication
- Supports DNP 3.0, Modbus TCP, and optional IEC 61850-8-1 MMS protocols.
- Requires additional protocol converter for certain signal protocols.
Accessories and Versions
- Optional power supply units and offshore-specific versions available for harsher environments.
- Standard installation location is directly on the transformer tank or within oil cooling pipes.
Protection and Safety Features
- Vacuum resistant to 5 Pa for 48 hours and pressure resistant up to 400 kPa.
- Includes safety chain for secure installation and removal.
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Description
Test your knowledge of the MSENSE® DGA 2/3 oil analysis device. This quiz covers its measurement capabilities, detection limits, and operating conditions. Learn about its accuracy in measuring hydrogen, carbon monoxide, and more in transformer insulating oil.
