GE Vernova’s latest and advanced Kelman BMT 430 is on-line system that continuously monitors the condition of the bushings, which are constantly under high stress, and developing partial discharge (PD) activity in the transformer. It will immediately alert personnel of evolving fault conditions with the bushings and provide vital health information on the bushings and the transformer.
The Kelman BMT 430 is a standalone system but can also be easily integrated with a GE Vernova’s Kelman DGA 900 multi-gas analysis unit providing additional on-line DGA capabilities enabling a more in-depth view of the transformer’s overall condition and root cause of major transformer failures.
Key Benefits
One product monitoring bushing Capacitance, Power Factor (tan delta) and Partial Discharge activity using a single sensor and connection point.
Enhanced computing power, scalable I/Os and an integrated HMI combine to provide a powerful and reliable bushing monitoring solution.
Easily upgradeable in the field to a KELMAN DGA 900 Plus system for more in-depth and complete transformer monitoring package.
Full integration with GE’s acclaimed Perception™ Fleet asset management software.
One supplier installing, servicing, ensuring proper communication and minimizing administrative burden to lower the total cost of ownership of your transformer
System Features
System can monitor Monitors up to 3 sets of 3 bushings: 3-phase transformer or a bank of 3 single phase transformers.
Built-in web-page based HMI for easy and quick access to live measurements.
Integrated 7” color LCD screen for simplified local user interaction and visualization of data.
Extensive communication options for local and remote communications.
Inputs and outputs for additional sensors including load and top oil temperature.
Bushing Adaptor Features
Designed to allow off-line testing of bushing without completely removing bushing adaptor from voltage tap.
Marine grade aluminum to withstand extreme environmental conditions rated IP66.
Surge protection -suppression circuit to always limit voltage within the adapters in case of transients.
Fail safe circuit ensure the bushing tapping points remain grounded should open circuit and/or surge protection fail.
Benefiting from decades of transformer manufacturing experience and previous transformer monitoring systems (MS 2000), GE now offers the MS 3000 online condition monitoring and expert system.
The MS 3000 system provides a holistic approach that not only relies on a GE’s Dissolved Gas Analysis (DGA) monitor but expands the monitoring by connecting to the other existing transformer sensors and adding functionalities and measuring devices as per customer requirements.
It is a modular system that can cover the active part of the transformer but also the bushings, the cooling system, the on-load tap-changer and detect transient over voltages and the presence of partial discharge. It gathers all this data, detects any worrying trend and cross correlates the information to confirm the diagnostic and helps you assess your transformer’s health.
The MS 3000 includes a user-friendly web-based interface. It computes mathematical models based on IEEE/IEC standards to deliver valuable operational information and has a build-in simulator and an expert system software that provides operational recommendations in case of alarms. All this information is available remotely through a wide range of communication methods and protocols (including IEC 61850).
The MS 3000 is an “all-in-one” monitoring solution ideally suited to critical transformers, when enhanced coverage of potential causes of failure is required to provide peace of mind.
Bushing Monitoring and Partial Discharge Detection for Transformers
Bushings account for a large proportion of High Voltage (HV) substation failures, often causing severe and costly damages. Preventive maintenance, early replacement and regular off-line testing have been employed to address this issue in the past. Now, technology exists that enables asset owners to detect impending failures and reduce their maintenance costs.
GE’s advanced Intellix™ BMT 330 is an on-line system that continuously monitors the condition of the bushings and can also detect developing partial discharge (PD) activity in the transformer main tank. It will alert personnel of fault conditions at an early stage and provide vital health information on the bushings and the transformer.
The Intellix BMT 330 can be utilized as a standalone system to monitor bushing insulation and partial discharge activity, or as an integrated, one-sourced solution with GE’s Kelman TRANSFIX Dissolved Gas Analysis (DGA) multigas analyzer and Perception Fleet software to provide a more in-depth view of the transformer’s condition and root cause of major transformer failures.
Key Benefits
Comprehensive monitoring of transformer bushings and PD activity on a bank of single phase transformers
One product combining advanced on-line continuous bushing monitoring and partial discharge activity in the transformer main tank using the same bushing adapter
One diagnostic software, GE’s Perception™, used for bushing information, PD activity and DGA data analysis, resulting in familiar easy-to-use information
One supplier installing, servicing, ensuring proper communication and minimizing administrative burden in order to lower the total cost of ownership of your transformer
Integrated Solution
Monitors bushing conditions and detects PD activity in the main tank
Can monitor 2 sets of 3 bushings (single phase and three phase transformers)
One-source provider that installs and services the entire solution
Can be stand-alone or easily integrated with GE’s Kelman family of DGA multi-gas units
Provides a more comprehensive view of the transformer’s condition
Minimal False Alarms
Compensation for actual bushing temperature using oil and ambient temperature sensors
Discrimination against factors affecting and causing the same effect on all bushings
PD to humidity correlation factor using included humidity sensor
Bushing Adapter Protection
Bushing analysis and PD detection data obtained using a single sensor
Marine-grade aluminum to withstand extreme environmental conditions
Redundant resistors ensure the bushing tapping points remain grounded
Voltage and surge suppression circuit to always limit voltage from adapters
Intuitive Software
Familiar Perception software included for download and visualization of data
Easy-to-use individual transformer software that can be upgraded to simultaneously monitor multiple transformers
Flexible database/server options to accommodate user requirements
9 gas on-line DGA expandable with add-ons to a Transformer Monitoring System (TMS)
The Kelman DGA 900 PLUS is a member of the next generation of multi gas monitors. Built from the DGA 900 platform, the PLUS extends the monitoring capability beyond just DGA.
Knowledge of the condition of transformers is essential for all electrical networks and on-line monitoring of transformers is an increasingly vital component of successful asset management programs. The comprehensive information provided by the Kelman™ DGA 900 PLUS not only allows expensive failures to be avoided but enables asset capabilities to be maximized.
The Kelman DGA 900 PLUS builds on the standard 9 gas DGA and moisture capabilities of the DGA 900 by enabling the addition of extra sensors, electronic cards and firmware algorithms to expand its monitoring capabilities. Bushing monitoring, partial discharge detection, OLTC monitoring, transformer models are amongst the options available to offer an integrated system which delivers a more in-depth picture of the transformer’s overall condition and will monitor the root causes of most transformer failures.
Benefiting from over 15 years of multigas DGA vendor experience and over 15.000 devices in the field, the DGA 900 encapsulates learnings and improvements derived from its predecessors to bring improved performance, innovative new features, enhanced user experience and increased field reliability and robustness.
While on-line DGA is now widely accepted as the most effective method of assessing the condition of a transformer, it does not cover all the possible sources of issues. Subsystems like the tap changer, the cooling system or the bushings can generate their own problems if they are left unmonitored. The DGA 900 PLUS monitoring system integrates DGA measurement, additional sensors, analysis models and data handling features to address the majority of prevalent failure modes. This cost-effective package provides the condition assessment tools essential for the effective management and optimal utilization of this critical sub-station asset. It is most suited for monitoring large, mission critical transformers or compromised transformers with a view to extending their life and preventing any unexpected failure:
Key Benefits
Modular and retrofittable architecture using selectable standard add-on cards
Provides extensive remote insight into transformer condition and safe operation
Enables correlation of data for validation and in-depth fault analysis
Graphical presentation using built-in web-page based HMI and local color screen
Full integration with GE’s acclaimed Perception™ Fleet asset management software
From the only vendor with 15 years PAS experience and installed base of >15.000 units
Dissolved Gas Analysis (DGA) and moisture measurements of insulating fluids are recognized as the most important tests for condition assessment of transformers. In previous years, multi-gas DGA was traditionally confined to a laboratory environment, with infrequent yearly off-line manual sampling aiding time-based maintenance strategies
However, as the global average age of transformers continued to rise, the possibility of rapid aging and even catastrophic failure between off-line tests also increased, leading many asset owners to adopt on-line DGA monitoring to provides remote alert and multi-gas diagnostic of deteriorating transformer condition.
This facilitated operational decisions without needing to go to site for manual oil sampling. It avoided unplanned outages, increased network reliability and enabled the move to condition-based maintenance.
In the early 2000’s, GE’s original Kelman™ range of on-line multi-gas DGA analyzers brought Photo-Acoustic Spectroscopy (PAS) measurement technology to the market. GE is now proud to introduce the Kelman DGA 900. its next-generation multi-gas on-line DGA and moisture analyzer. At its heart lies an evolved implementation of GE’s proven PAS technology, providing laboratory challenging levels of precision and repeatability with no consumables (carrier or calibration gases) and no need for frequent re-calibration. It also has enhanced computing power and scalable I/Os for future proofing and adding functionalities to grow each analyzer into a flexible transformer monitoring solution.
Transformer issues can now be detected in their infancy, making sure that they are fixed early so that the nominal expected life of the transformer can be achieved. Maintenance interventions can now be planned, reducing their length and their cost and causing less disruption to the network and customers. In addition, aging asset replacement strategies can be anchored on hard health condition data and not purely based on the age of the transformer.
The Kelman™ DGA 900 is an 9-gas on-line transformer DGA monitoring unit. Using our 4th generation of advanced photo-acoustic detection technology, the DGA 900 measures all significant fault gases (in ppm) as outlined by international standards as well as moisture in oil (%RH & ppm). The measurement of these gases allows the user to detect and diagnose a complete range of transformer faults.
Benefits
Provides remote alert and multi-gas diagnostic of deteriorating transformer condition
Expedites operational decisions without needing to go to site for manual oil sampling
Issues can be detected in their infancy, avoiding unexpected failures and facilitating planned outages
Anchors condition based maintenance and asset replacement strategies on hard data
No need for consumables or frequent recalibration to operate at optimum performance
New “Rapid Mode” provides near real time insight on fast developing faults
Enhanced computing power, highly scalable I/Os and integrated HMI combine to provide a powerful highly flexible transformer monitoring solution
Compatible with mineral insulating oils and newer ester based fluids (natural and synthetic)
Features
DGA & Water – Nine gases (hydrogen, methane, ethane, ethylene, acetylene, carbon monoxide, carbon dioxide, nitrogen and oxygen) plus moisture
Inputs/Outputs for additional sensors including load and oil temperature
Full DGA results down to once per hour and new “Rapid Mode” for critical gases in just 30 minutes
Integrated 7” colour LCD screen for simplified local user interaction and visualisation of data
Innovative two enclosure design enables adjacent or separated installation arrangements to better accommodate varied site conditions
Communication Options – Extensive local and remote communications options
The Kelman DGA 900 TAPTRANS is the next generation 9-gas on-line transformer multi gas DGA (Diagnostic Gas Analyzer) monitor. Built from the DGA 900 platform, the TAPTRANS extends the capability beyond measuring a single transformer main oil tank.
Knowledge of the condition of transformers is essential for all electrical networks and on-line monitoring of transformers is an increasingly vital component of successful asset management programs. The comprehensive information provided by the Kelman™ DGA 900 TAPTRANS not only allows expensive failures to be avoided but enables asset capabilities to be maximized. The Kelman DGA 900 TAPTRANS is a patented designed specifically for transformers with an On-Load Tap Changer (OLTC), which is recognised as one of the most vulnerable parts of the transformer and which accounts for a large portion of unplanned outages. It offers discrete multigas on-line DGA and moisture monitoring, separating the main and selector tanks from the diverter tank to avoid any risk of contamination. Utilizing photo-acoustic spectroscopy (PAS) measurement technology, well suited to field application, it provides laboratory challenging levels of precision and repeatability. Full 9 gas oil sampling and analysis can be performed as often as every hour on a single tank and up to once every three hours if all three possible oil tanks are connected.
Benefiting from over 15 years of multigas DGA vendor experience and over 15.000 devices in the field, the DGA 900 encapsulates learnings and improvements derived from its predecessors to bring improved performance, innovative new features, enhanced user experience and increased field reliability and robustness.
While on-line DGA is now widely accepted as the most effective method of assessing the condition of a transformer, it does not cover all the possible sources of issues. Subsystems like the tap changer, the cooling system or the bushings can generate their own problems if they are left unmonitored. The DGA 900 Multitank product line are a monitoring system which integrates DGA measurement, additional sensors, analysis models and data handling features to address the majority of prevalent failure modes. This cost-effective package provides the condition assessment tools essential for the effective management and optimal utilization of this critical sub-station asset. It is most suited for monitoring large, mission critical transformers or compromised transformers with a view to extending their life and preventing any unexpected failure:
Key Benefits
Modular and retrofittable architecture using selectable standard add-on cards
Provides extensive remote insight into transformer condition and safe operation
Enables correlation of data for validation and in-depth fault analysis
Graphical presentation using built-in web-page based HMI and local color screen
Full integration with GE’s acclaimed Perception™ Fleet asset management software
From the only vendor with 15 years PAS experience and installed base of >15.000 units
While on-line DGA is now widely accepted as the most effective method of assessing the condition of a transformer, it does not cover all the possible sources of issues. Subsystems like the tap changer, the cooling system or the bushings can generate their own problems if they are left unmonitored.
It is most suited for monitoring large, mission critical transformers or compromised transformers with a view to extending their life and preventing any unexpected failure.
Industrial processes where an OLTC Transformer is seen as a manufacturing tool, often dependent on an uninterruptible power supply as part of the process.
Preventing unplanned outages is vital to maintain the manufacturing process output, where failure would result in costly downtime or waste. The OLTC transformer is often used within renewable power generation where varying output needs to be compensated.
9 Gas on-line monitor for measuring DGA across multiple transformers
The Kelman DGA 900 MULTITRANS is the next generation 9-gas on-line transformer multi gas DGA (Diagnostic Gas Analyzer) monitor. Built from the DGA 900 platform, the Multitrans extends the capability beyond measuring a single transformer main oil tank.
Knowledge of the condition of transformers is essential for all electrical networks and on-line monitoring of transformers is an increasingly vital component of successful asset management programs. The comprehensive information provided by the Kelman DGA 900 MULTITRANS not only allows expensive failures to be avoided but enables asset capabilities to be maximized.
Using our 4th generation of advanced photo-acoustic detection technology, the DGA 900 MULTITRANS measures all significant fault gases (in ppm) as outlined by international standards as well as moisture in oil (%RH & ppm). The measurement of these gases allows the user to detect and diagnose a complete range of transformer faults. Benefiting from over 15 years of multigas DGA vendor experience and over 15.000 devices in the field, the DGA 900 encapsulates learnings and improvements derived from its predecessors to bring improved performance, innovative new features, enhanced user experience and increased field reliability and robustness.
While on-line DGA is now widely accepted as the most effective method of assessing the condition of a transformer, it does not cover all the possible sources of issues. Subsystems like the tap changer, the cooling system or the bushings can generate their own problems if they are left unmonitored. The DGA 900 Multitank product line are a monitoring system which integrates DGA measurement, additional sensors, analysis models and data handling features to address the majority of prevalent failure modes. This cost-effective package provides the condition assessment tools essential for the effective management and optimal utilization of this critical sub-station asset. It is most suited for monitoring large, mission critical transformers or compromised transformers with a view to extending their life and preventing any unexpected failure:
Key Benefits
Modular and retrofittable architecture using selectable standard add-on cards
Provides extensive remote insight into transformer condition and safe operation
Enables correlation of data for validation and in-depth fault analysis
Graphical presentation using built-in web-page based HMI and local color screen
Full integration with GE’s acclaimed Perception™ Fleet asset management software
From the only vendor with 15 years PAS experience and installed base of >15.000 units
Knowledge of the condition of transformers is essential for all electrical networks and on-line monitoring of transformers is an increasingly vital component of successful asset management programs. The information provided by multi-gas on-line DGA allows asset capabilities to be maximized and expensive failures to be avoided.
MULTITRANS is best suited for monitoring large, system critical or already compromised transformers, arranged in a 3 single phase tank configuration, with a view to extending asset life, preventing unexpected failure and operating on a condition-based maintenance schedule.
The Transfix™ DGA 500 is an on-line monitoring unit that measures five individual dissolved gases and moisture, and provides both on-line monitoring and key exploratory diagnostics. It uses GE’s advanced Photo-acoustic spectroscopy (PAS) technology, made popular due to its accuracy, repeatability and lack of consumable through its bigger brother the Kelman™ Transfix.
The Transfix DGA 500 enables the well known Duval’s triangle DGA diagnostic described in Appendix B of IEC Standard 60599 and integrates seamlessly with Perception to provide not only dashboard and risk information for the transformer monitored but also to compare that transformer’s health with that of other similar assets and showcase its priority as part of the fleet management tool.
Key Benefits
Automated, on-line multi-gas and moisture monitoring
Provides early identification of arcing issues before they become critical failures
Ability to perform Duval’s triangle DGA diagnostic
Easily replaceable with a full nine gas unit
Communicates data to allow remote diagnostic
No carrier or calibration consumable gases required
Available with AC or AC/DC power supply
Applications
Power Utilities:
Middle of the road solution for medium-criticality transformers
Monitoring together with remote exploratory diagnostic
Industrial Plants:
Reduces the risk of process interruption due to power failure
he MINITRANS is a low-cost on-line discrete multi-gas DGA transformer monitoring unit.
Based on the same core technology as the highly successful TRANSFIX, the MINITRANS is a lower cost alternative, monitoring three key gases: Hydrogen, Acetylene and Carbon Monoxide (in ppm) plus moisture in oil (%RH & ppm). The measurement of these gases allows the user to detect a wide range of developing faults including arcing.
Benefits
Transformer faults detected in their infancy, minimizing costly unplanned outages and equipment failure.
Type of fault may be indicated from results.
Photo Acoustic Technology – no costly consumables/calibration gases required.
Features
DGA & Humidity – Three fault gases (Hydrogen, Acetylene and Carbon Monoxide) plus moisture.
Dissolved Gas Analysis (DGA) and moisture measurement of insulating fluids are recognized as the most important tests for condition assessment of fluid-insulated transformers. Every year asset owners deploy field crews to take thousands of fluid samples from transformers as part of periodic health checks and for immediate operational decisions. These samples are sent to off-site laboratories for analysis. The Kelman™ Transport X² is a portable ‘lab in a box’ device. In critical situations, the ability to perform DGA in less than 30 minutes on the spot, empowers asset owners to determine a transformer’s condition and thereby allow operational decisions to be made at the earliest opportunity.
GE was among the first to deliver consumable-free DGA products to the market, and Transport X² represents the next generation of its portable onsite system. GE’s class leading Photo-acoustic spectroscopy (PAS) gas measurement technology, now in its fourth generation, provides laboratory-challenging levels of precision in a calibration free, easy-to-use and hand-carriable product.
Benefiting from more than 40 years of global DGA experience, the Kelman Transport X² encapsulates intuitive advancements to bring improved performance, innovative new features, enhanced user experience and greater robustness.
Benefits
Measurement of seven diagnostic gases and moisture content in the oil
Fast onsite diagnostics in less than 30 minutes
Compatible with mineral insulating oils and newer ester-based fluids (natural and synthetic)
Enables operators to effectively respond to alarms, trip events and supports onsite field decision making
Ideal companion to GE’s range of single gas online DGA monitors for adding transformer diagnostics
Features
Supports mineral oil and ester fluids
Calibration and consumable gas free design for autonomous field operation
Robust design with IP67 rating when closed
Intuitive on-screen step-by-step instructions
Seamless integration with Perception software
Plug and Play download of measurements and log files using standard USB 2.0 memory stick
