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ETO Fault Finding

BETADesktopEN · RU · ESSimulator · Engine

The ETO is the hero here, not the machine. No.1 main air compressor will not start, will not stop or trips, and the receivers are falling before stand-by. Isolate, prove dead, measure, repair and test run it, the way you would on board.

Launch trainer →

This trainer needs a computer screen. Open this page on your laptop.

The 3D compressor room in the ETO Fault Finding trainer, with the multimeter and an AMS alarm

What you do

  • Eleven faults on a relay starter (30 kW, 440 V IT, 60 Hz) at three levels: Cadet, ETO and Senior ETO.
  • Measure on the hardware: the panel, the door and the field devices. Readings come from a circuit solver, ghost voltages and the IT network included.
  • Work safe: isolation, lock and tag, prove dead with a two-pole tester. A critical violation ends a Senior job.
  • A debrief compares your readings with the expert route and names the traps you fell into.
  • A 3D compressor room to walk through, with live gauges and the panel HMI, and a Learn mode on how the compressor works.

Before you start

A desktop or laptop (from 1280 px wide) with a current browser. The 3D room needs WebGL; the other views work without it. Only your language and level are kept in your browser.

For training only. Models are simplified; class rules and the maker’s manual are the authority.

Learn the theory

  1. 01How a ship’s main air compressor worksThe air path of a two-stage marine air compressor, its drains and unloading, the safety valves and the 10-minute blow-down, and what the starter does at each step.
  2. 02Starting a main air compressor: checks, first run, start sequenceChecks before starting a ship’s main air compressor, the first run after overhaul and the start in MAN step by step: contactor, timers, oil pressure and loading.
  3. 03AUTO and lead / lag: two compressors on the receiversTwo main air compressors on the receivers: pressure switches at 27/30 and 24/30 bar, lead and lag, the STOP button trap in AUTO and the restart after a blackout.
  4. 04Stopping, trips and AMS alarmsStopping a main air compressor, emergency stop, trips on low oil pressure, high temperature and overload, reset, and the RUNNING, HEALTHY, FAIL TO START signals.
  5. 05Isolation and proving dead on a starter panelBefore hands-on work on a 440 V starter panel: permit, isolate, lock and tag, prove dead live – dead – live with a two-pole tester, megger safely, switch back on.

All guides on one page → ETO Fault Finding guides · Guías en español