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The VMIVME-4150 is a 12-bit Analog Output Board which provides 12þisolated high

quality 12-bit analog output channels on a single 6U form factor VMEbus board.  Each

channel is electrically isolated from all other channels and from the VMEbus.  Listed

below are some features of the VMIVME-4150 :

• 12 fully isolated analog outputs

• 1.000 Vpk isolation, channel-to-channel and channel-to-bus

• 12-bit resolution

• Bipolar voltage output ranges selectable as ±2.5.  ±5.  or ±10 V

• Unipolar voltage output ranges selectable as 0 to 2.5 V, 0 to 5 V, or 0þtoþ10 V

• 10 mA load capacity for voltage outputs over full ±10 V range

• Available with 4 to 20. 0 to 20. or 5 to 25 mA current loop outputs

• 0.05 percent accuracy for voltage outputs, 0.08 percent for current loop outputs

• 4. 8. or 12-channel configurations

• Optical data coupling provides full galvanic isolation

• Static readback data registers simplify program control

• Front panel access for field connections

• Program-controlled connect/disconnect operation of voltage outputs facilitates

system testing

Functional Description The VMIVME-4150 internal organization is illustrated in the functional block diagram shown in Figure 1.2-1. The board will operate with sustained isolation voltages as high as 1.000 Vpk. Bipolar output voltage ranges are selectable as ±2.5. ±5. or ±10þV. Unipolar output voltage ranges are selectable as 0 to 2.5 V, 0 to 5 V, or 0þtoþ10þV, and full 10þmA loading is supported throughout these ranges. 4. 8. or 12 channel configurations are available. Voltage outputs may be disconnected under program control during system testing, and are disconnected automatically during reset. Optional current-mode outputs support applications that require standard 4 to 20. 0 to 20. or 5 to 25 mA analog current loops. Compliance of the current mode outputs is 9 V if the loop supply originates on the board, or 27 V with an external loop power supply. A front panel LED (Fail) is provided. The LED light is on during system reset and can be turned OFF under user software control.

Kelman BMT 430

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.

GE MS 3000 Transformer Monitoring System

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.

GE Intellix BMT 330

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

Kelman DGA 900 PLUS

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.