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Eaton 9395X — is a modern modular three-phase double-conversion uninterruptible power supply system designed for critical high-power infrastructure: data centers, medical clusters, industrial facilities and energy facilities. High efficiency (up to 97.4%), scalability and flexibility of the architecture with separate power modules require detailed verification of each element during technical diagnostics. The model supports parallel operation, provides deep integration into control and monitoring systems, so diagnostics cover electronics, network, batteries, cooling and communication with BMS/SCADA/DCIM.
What diagnostics include
Inspection / audit
- Inspection of the condition of the housing, cable connections, ventilation ducts, access to modules.
- Visual inspection of each power module: indicators, state of control elements, warning signals.
- Analysis of operating conditions: temperature regime, presence of contamination, correct placement of cabinets.
Electrical tests
- Control of input voltage for each phase, frequency and stability of the network.
- Analysis of inverter output voltage: symmetry, harmonic level, class compliance VFI-SS-111.
- Checking the stability of operation in normal mode, with load, during transitions (network ↔ inverter ↔ battery).
- Testing parallel operation of modules (if available): load distribution, reaction to failure of one module.
Inverter / bypass / charge
- Individual testing of each inverter module: voltage levels, temperature, stability of operation.
- Static bypass test: correct switching, reaction speed, overload protection.
- Analysis of the charger operation: charging current parameters, boost/float modes.
- Checking the control logic and reading logs via the Power Xpert Controller (PXC) panel.
Battery (battery system)
- Overview of the connection of battery cabinets or blocks: terminals, cables, circuit breakers, fuses.
- Voltage control on all sections, symmetry of elements, presence of imbalance.
- Checking the charging/discharging mode, assessing SOC (state of charge) and SOH (state of health) by BMS or manually.
- Simulation of transition to autonomous mode — estimation of actual backup time.
Cooling
- Checking each fan (modules and cabinets): performance, noise level, alarm in case of failure.
- Temperature analysis of inverter, rectifier, control board zones.
- Inspection of filters and ventilation ducts for contamination, lack of air flow.
Communications / monitoring
- PXC display functionality: navigation, reading logs, access to configuration.
- Checking communication via Ethernet, Modbus TCP/RTU, SNMP, RS-485 with DCIM/BMS systems.
- Testing dry-contact interfaces: alarm signals, external control signals (EPO, generator start).
- Fixing delays or errors in data transmission to third-party systems.
Technical report
- Formalized report on all stages of testing: voltage, current, temperatures, log files, module status.
- Separate analysis of the condition of batteries, cooling, communications.
- Recommendations for service, firmware updates, modernization.
When diagnostics are needed
- At least once every 12 months — as part of scheduled maintenance.
- After a module failure, error message, or suspicious system behavior.
- After a configuration change (module expansion, battery replacement, software update).
- Before commissioning a new load or critical facilities.
Why choose Total-Energo LLC
- Experience in diagnosing and servicing large-scale Eaton 9395, 9395P, 9395X systems throughout Ukraine.
- Using official Eaton software, communication protocols, and certified equipment.
- Individual approach to configurations with parallel or backup architecture.
- Full compliance with the manufacturer's regulations, including documentation for audits and certifications.