On site
At your plant or site, with the modules taught on your own inverters where the unit can be isolated for the session.
O&M training · solar inverters
Solar O&M training: inverter and control board fault-finding
Hands-on training for operation and maintenance technicians on solar inverter power stages, control boards and auxiliary circuits. It is taught at the bench, on real faulty units, so technicians learn to find the failed component instead of swapping a board.
01Why this training
Where O&M teams lose time on inverter faults
- Boards are replaced before the failed part has been identified
- Faults repeat because the cause, such as heat or the auxiliary supply, was never checked
- Teams have no bench access to test a removed board or module
- Safety procedures for high-energy DC and AC circuits are learned on the job
02Curriculum
Five modules, from isolation to the bench
Modules can be combined or shortened for your team. The scope is agreed before the first session.
Module 1: Safety and isolation
DC and AC isolation, waiting for discharge, verifying the unit is dead, and the personal protective equipment for each task.
Module 2: Field diagnostics
Reading fault codes and event logs, taking DC input and AC output measurements, and checking insulation and earth-fault circuits. Deciding between repair and replacement.
Module 3: Power stage
IGBT and MOSFET modules, gate drivers, DC-link capacitors, heatsinks and fans, and what each failure looks like in the readings.
Module 4: Control and auxiliaries
Control board supply, the auxiliary SMPS, analogue sensing, communication circuits, and the RCMU sensing circuit.
Module 5: Bench lab on faulty units
Trainees fault-find real faulty units from start to finish, then write the findings in the same report format we use for customers.
03Delivery
Three ways to deliver the course
At our factory
At our refurbishment factory in Puducherry, with a bench lab of real faulty units and test equipment.
Hybrid
Classroom sessions on site, followed by the bench lab at our Puducherry factory for the hands-on modules.
04Pilot approach
Start with one pilot batch, then widen
Pilot scope, duration and fees are agreed per batch on request. We do not publish a standard fee on this page.
Scope call
Share your inverter models, the fault history you see most, and the experience level of the team.
Agree the syllabus and bench units
We agree which modules, which units and which faults the pilot batch will cover.
Run the pilot batch
The pilot team goes through the modules, and we review the fault-finding reports they write.
Review and widen
We review the outcome with your O&M lead and agree whether to extend the course to the wider team.
05Who attends
For O&M, EPS and OEM field technicians
- O&M technicians and field engineers who run solar plants
- EPS and OEM field technicians who support inverters in the field or in the aftermarket
- Plant electricians responsible for inverter fault response
- Basic electrical safety training is expected before the course
06Questions
Training questions
Who is the course for?
It is for O&M technicians, field engineers and plant electricians who respond to solar inverter faults. Basic electrical safety training is expected before the course. The modules are pitched at technicians who already work on electrical equipment, so the course builds on their existing skills.
Can you train on our own inverters?
Yes, where a unit can be isolated for the session. For on-site delivery we use your units. For the bench lab we use units we have received for repair, so trainees work on real faults. The scope call confirms which units are used and how they are isolated.
Does the course cover Delta RPI inverters?
Delta RPI commercial inverters are in our repair scope and are used in the bench lab. For other makes, we confirm the models in the scope call, so the syllabus matches the units your team runs. Tell us the models you operate when you request a proposal.
How long is the course?
The duration depends on which modules you take and how many people attend, so we do not publish a fixed length. We agree it in the scope call. The pilot batch sets the pattern for any wider rollout, and the schedule is confirmed before the first session.
What does each trainee take away?
Each trainee receives the inverter failure checklist and the fault-finding flow used in the course, plus the report template used for writing findings. The fault-finding reports written in the bench lab can be shared with your O&M lead, so the learning stays with the team.
Do you also run training for servo and drive technicians?
Yes. Star also runs fault-finding training for servo, drive and PLC technicians on real faulty units, using the same bench approach. The schedule and the course format are set per programme. See the training page for those courses and how they are delivered.
Start with a scope call for your O&M team.
Tell us your inverter models and the faults you see most. WhatsApp or call +91 97866 22233, or email star@starautomations.com.