MSENSE® PDM
Online partial discharge monitoring system
According to failure statistics (e.g., CIGRÉ), over 60 % of transformer failures are due to electrical or dielectric faults, many of which are linked to PD. Therefore, PD detection is a critical diagnostic tool for assessing the health of high-voltage equipment. Early identification of PD allows for timely maintenance, preventing costly failures and extending equipment life. MSENSE® PDM offers a flexible monitoring platform integrated into ETOS®. A free configuration of the monitoring system including sensor type and quantity allows tailoring to individual requirements.
Sus ventajas de un vistazo
-
Early fault detection
-
Preventive maintenance
-
Quality assurance
-
Safety and risk mitigation
-
Smarter asset management
Información sobre el producto
Partial discharge: the hidden threat to transformers
Undetected issues in manufacturing, damage during transport and installation, or aging processes of the insulation can lead to the occurrence of partial discharge. If this PD activity remains unchecked, it can cause a progressive breakdown of the insulation, eventually resulting in a catastrophic failure. According to failure statistics (e.g., CIGRÉ), over 60 % of transformer failures are due to electrical or dielectric faults, many of which are linked to PD. Therefore, PD detection is a critical diagnostic tool for assessing the health of high-voltage equipment. Early identification of PD allows for timely maintenance, preventing costly failures and extending equipment life.
How online PDM can assist you
Online PD monitoring offers continuous, real-time insight into the condition of insulation systems.
- Early fault detection: PD is a direct indicator of insulation degradation. Continuous monitoring acts as an early warning system, identifying weak points in the insulation before they can lead to a complete breakdown.
- Preventive maintenance: By detecting and trending PD activity over time, asset managers can schedule maintenance proactively, avoiding unplanned outages, reducing repair costs, and improving overall system reliability.
- Quality assurance: PD measurement is a fundamental quality control test performed during factory acceptance (FAT) and site acceptance (SAT) to ensure that the equipment is free from significant manufacturing or transport-related defects.
- Safety and risk mitigation: Preventing catastrophic failures like transformer explosions or fires is paramount for the safety of personnel and the protection of surrounding infrastructure. PD monitoring is a key tool in mitigating these high-impact risks.
- Smarter asset management: Real-time data supports better decisions about maintenance, refurbishment, or replacement—extending equipment life and optimizing investment.
MSENSE® BM + MSENSE® PDM: A dual strategy for transformer reliability
The test or voltage tap of the bushing serves as the connection point. With the use of specialized adapters and coupling units, PD signals can be extracted from this tap without interfering with the bushing’s operation or its monitoring system. For coupling, a Partial discharge coupling unit (PDCU) is connected to the bushing test tap coaxial cables are used to connect the PD measurement system, ensuring reliable signal transmission. MR recommends combining MSENSE® BM and MSENSE® PDM to enable a comprehensive monitoring strategy.
Although both systems utilize the bushing’s test tap for signal acquisition, they serve distinct purposes: bushing monitoring focuses on assessing the long-term health of the bushing by tracking changes in capacitance (C1) and dissipation factor (tan∂), while the PD system is capable of detecting fast-developing faults both within the bushing and inside the transformer.
Ultra-high frequency (UHF) sensors detect electromagnetic radiation in the gigahertz range (300 MHz to 3000 MHz) generated by partial discharges (PD) inside the transformer. The principle of measurement is based on using an UHF antenna to measure the electromagnetic emissions from a PD source.
This senor type significantly less susceptible to external interference and is therefore particularly suitable for the reliable detection of internal partial discharges. It is therefore recommended for new transformer design. Depending on the application, Window type and drainvalve sensor can be used. Window type sensor are recommend for new transformer applications, drainvalve sensors can be a solution for retrofit application when no windows are available.
Seleccionar idioma
Partial discharge: the hidden threat to transformers
Partial discharge: the hidden threat to transformers
Undetected issues in manufacturing, damage during transport and installation, or aging processes of the insulation can lead to the occurrence of partial discharge. If this PD activity remains unchecked, it can cause a progressive breakdown of the insulation, eventually resulting in a catastrophic failure. According to failure statistics (e.g., CIGRÉ), over 60 % of transformer failures are due to electrical or dielectric faults, many of which are linked to PD. Therefore, PD detection is a critical diagnostic tool for assessing the health of high-voltage equipment. Early identification of PD allows for timely maintenance, preventing costly failures and extending equipment life.
How online PDM can assist you
Online PD monitoring offers continuous, real-time insight into the condition of insulation systems.
- Early fault detection: PD is a direct indicator of insulation degradation. Continuous monitoring acts as an early warning system, identifying weak points in the insulation before they can lead to a complete breakdown.
- Preventive maintenance: By detecting and trending PD activity over time, asset managers can schedule maintenance proactively, avoiding unplanned outages, reducing repair costs, and improving overall system reliability.
- Quality assurance: PD measurement is a fundamental quality control test performed during factory acceptance (FAT) and site acceptance (SAT) to ensure that the equipment is free from significant manufacturing or transport-related defects.
- Safety and risk mitigation: Preventing catastrophic failures like transformer explosions or fires is paramount for the safety of personnel and the protection of surrounding infrastructure. PD monitoring is a key tool in mitigating these high-impact risks.
- Smarter asset management: Real-time data supports better decisions about maintenance, refurbishment, or replacement—extending equipment life and optimizing investment.
MSENSE® BM + MSENSE® PDM: A dual strategy for transformer reliability
The test or voltage tap of the bushing serves as the connection point. With the use of specialized adapters and coupling units, PD signals can be extracted from this tap without interfering with the bushing’s operation or its monitoring system. For coupling, a Partial discharge coupling unit (PDCU) is connected to the bushing test tap coaxial cables are used to connect the PD measurement system, ensuring reliable signal transmission. MR recommends combining MSENSE® BM and MSENSE® PDM to enable a comprehensive monitoring strategy.
Although both systems utilize the bushing’s test tap for signal acquisition, they serve distinct purposes: bushing monitoring focuses on assessing the long-term health of the bushing by tracking changes in capacitance (C1) and dissipation factor (tan∂), while the PD system is capable of detecting fast-developing faults both within the bushing and inside the transformer.
Ultra-high frequency (UHF) sensors detect electromagnetic radiation in the gigahertz range (300 MHz to 3000 MHz) generated by partial discharges (PD) inside the transformer. The principle of measurement is based on using an UHF antenna to measure the electromagnetic emissions from a PD source.
This senor type significantly less susceptible to external interference and is therefore particularly suitable for the reliable detection of internal partial discharges. It is therefore recommended for new transformer design. Depending on the application, Window type and drainvalve sensor can be used. Window type sensor are recommend for new transformer applications, drainvalve sensors can be a solution for retrofit application when no windows are available.
Seleccionar idioma
