845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 9–1
845 Transformer Protection System
Chapter 9: Maintenance
GE
Grid Solutions
Maintenance
The following maintenance options are available through the EnerVista 8 Series
Setup
software.
Path: Maintenance > Modbus Analyzer
The Modbus Analyzer is used to access data via the Modbus User map for testing,
troubleshooting and maintaining connected devices. See the 8 Series Protective Relay
Communications Guide for modbus memory map details.
Path: Maintenance > Update Firmware
Selecting Update Firmware loads new firmware into the flash memory. See Loading New
Relay Firmware in Chapter 3, Interfaces > Software Interface > Upgrading Relay Firmware.
Path: Maintenance > Environmental Awareness Health Report
Over the life of the 845 product remedial action can be required. The 845 has a module
which can record environmental data.
Environmental Health Report
Prolonged exposure to harsh environments and transient conditions that exceed those
stated in Section 1 - Specifications reduce the life of electronic products. The 845
has an
Environmental Awareness Module (EAM) to record environmental data over the life of the
product. The patented module measures temperature, humidity, surge pulses and
accumulates the events every hour in pre-determined threshold buckets over a period of
15 years. The user can retrieve this data in the form of a histogram using EnerVista Setup
Software to ensure any change in the operating condition of the installed fleet is identified
quickly so remedial action can be taken.
Figure 9-1: Environmental Report
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