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Sixteen questions from the Kent G3 group, including its troubleshooting flows. Attempt all sixteen before checking the key. Suggested pass mark: 13/16.

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Questions

1. The Kent G3 Quick Setting sequence on the HMI runs in this order:
  • A. Grid code → Time → Battery → Storage mode → Meter/CT
  • B. Time → Meter/CT → Grid code → Storage mode → Battery setting
  • C. Battery setting → Meter/CT → Time → Grid code → Storage mode
  • D. Storage mode → Battery → Time → Meter/CT → Grid code
2. The Kent G3 parallel limit is:
  • A. 4 units, any model mix
  • B. 8 units with a combiner
  • C. Unlimited on a shared bus
  • D. 6 identical units — different models never parallel
3. Kent G3 AC terminal torque is:
  • A. 1.2 N·m
  • B. 2 N·m
  • C. 4–5 N·m
  • D. 8 N·m
4. For the Kent Lithium Battery, the Kent G3 battery menu selection is:
  • A. The LV Pylon-family entry (PYLON_LV)
  • B. The HV entry
  • C. “No Battery”
  • D. Any lithium entry — they are equivalent
5. The Kent G3 mounting rule (Kent SOP) is:
  • A. Vertical or ≤ 15° back tilt
  • B. Vertical ± 5°
  • C. Any angle up to 45°
  • D. Horizontal allowed on flat roofs
6. In a Kent G3 parallel chain, HMI addresses are set as:
  • A. Master = 0, slaves 1, 2, …
  • B. All units = 1
  • C. Master = 1 (mandatory), slaves 2, 3, … — never 0
  • D. Addresses are automatic
7. Kent G3 backup overload capability is:
  • A. 2× rated power for 10 seconds
  • B. 1.5× rated for 60 seconds
  • C. 3× rated for 5 seconds
  • D. None — rated power is the hard ceiling
8. On the Kent G3 DRM port (RJ45 pins 5 & 6):
  • A. Open pins = normal operation
  • B. Shorted = inverter generates; open = shutdown within 5 s
  • C. It is the datalogger port
  • D. It is the meter RS485 port
9. A generator on the Kent G3 GEN port must be:
  • A. Single-phase, any size
  • B. Inverter-type only
  • C. Below 5 kVA regardless of model
  • D. Three-phase, up to rated power, feeding backup loads — grid-side loads need an ATS
10. Kent G3 ECO standby behaviour engages when:
  • A. The grid fails
  • B. PV is under 100 W and SOC is below the overdischarge point — the unit stands by from grid and the pack recharges first
  • C. SOC reaches 100 %
  • D. The customer presses the power key twice
11. The restart discipline on a fault is:
  • A. One restart; if the fault persists, escalate to Kent service
  • B. Restart until the code clears
  • C. Never restart — escalate immediately
  • D. Three restarts, ten minutes apart
12. Kent G3 BatName-FAIL means:
  • A. The battery selection on the HMI is wrong — correct it after the cable is proven
  • B. The pack is empty
  • C. The BMS fuse is blown
  • D. The inverter needs firmware
13. A Kent G3 whose SOC sits exactly at 80 % on-grid and won’t discharge further is showing:
  • A. A BMS fault
  • B. A CT problem
  • C. Cell imbalance
  • D. The Battery reserve default doing its job — adjust the design value only if the customer’s intent differs
14. Kent G3 CAN Fail with SOC missing points first at:
  • A. The battery cells
  • B. The BMS comm cable — label, continuity, seating, before any setting is touched
  • C. The grid code
  • D. The datalogger
15. An internal fault (Kent G3 INI-FAULT / DSP-B-FAULT) that survives one restart is:
  • A. A Kent service case — stop, do not open the unit
  • B. A site wiring problem
  • C. Fixed by a factory reset
  • D. Fixed by swapping comm cables
16. When a grid-fault pattern needs different trip settings, the grid code is changed:
  • A. By the installer to the nearest match
  • B. By the customer via the display
  • C. Automatically by the meter
  • D. Only per the Kent-issued parameter sheet for the site’s DISCOM — never improvised

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Answer key

  1. B
  2. D
  3. C
  4. A
  5. B
  6. C
  7. A
  8. B
  9. D
  10. B
  11. A
  12. A
  13. D
  14. B
  15. A
  16. D