blog image Tuesday , May 12 ,2020
Inverter Maintenance

Inverter Maintenance

 

Inverter Maintenance

 

By carrying out an inverter maintenance and management service, we are able to provide that specialist attention to the inverter section of the plant, by ensuring that the inverters are serviceable, ready for use 24 hours per day. Utilizing a database if necessary, we are able to keep customers informed and up to date on all drives, in operation, in stores and in repair.


By increasing the reliability of the inverters used in a manufacturing environment, we are able to reduce the downtime due to a reduction of inverter failures, therefore helping the customer increase their productivity, with the aim of zero breakdowns.

 

System Approach Summary

 

BSM divides the inverter maintenance function into four distinct areas in order to maximize performance and delivery the best possible results. Each area can be tailored around each customer’s specific requirements. These sections are:-

 

Planning

 

By carrying out careful planning (including asset registration) and setting out the project in clear areas we will ensure all requirements are covered. This includes ensuring, where required by the customer, the inverter maintenance program incorporating an asset register, repair history and condition monitoring reports, is used and is delivering the outputs required. The planning stage will also ensure the inverter stock is correctly stored and the correct stock coverage is also in place.

 

Site Maintenance

 

We aim to carry out the most suitable form of condition monitoring (most likely thermography) or preventive maintenance technique to every available unit in order to generate a complete database of information on the state of each item to prevent the occurrence of unknown failures.

 

Repair

 

We carry out best practice techniques in all aspects of repair designed to maximize the life of the components involved to provide greater reliability and prevent downtime and unwanted failures.

 

Review

 

Working within the parameters allowed by the customer, we aim to monitor all aspects of the activity on site in order to create the best possible return on the work carried out and to learn from failure modes.

 

 

Inverter Maintenance - Planning

 

The planning element of the inverter maintenance program has a number of aspects that can be added or removed subject to maintenance requirements and regimes on site:

 

Inverter Maintenance Program – Online Asset Register

 

An online asset register can be used in the inverter maintenance contract and be maintained as part of the contract.

This system has been written directly for inverter maintenance applications and has had a number of modifications to assist in the smooth running of the management program:

Features of the system include:-

  • Online internet based access
  • Password protected security system
  • Full nameplate register listing all nameplate details
  • Inspection details
  • Repair history
  • Maintenance inspection details
  • As mentioned earlier, the inverter maintenance software has been written exclusively for inverter maintenance contracts, as a result further features you may require can be added by our IT personnel.
  • As part of the audit, a full listing is made of inverters where there is a lack of stock coverage.

Inverter Maintenance – On site prevention and inspection

Preventive maintenance on site can significantly improve the reliability and mean time to failure of inverters on site, giving greater reliability and productivity.

The preventive maintenance inspections and procedures are designed to provide a detailed view to the condition of the plant enabling downtime to be minimized by identifying faults prior to failure.

By carrying out these activities we aim to:-

  • reduce downtime
  • reduce costs
  • enable a continuous improvement approach to the inverter maintenance
  • We carry out the following work as part of the site preventive maintenance activity:
  • Visual inspection of the drive and its surrounding area.
  • Thermo graphic inspection of connections and terminals.
  • Inspection of connecting ribbons and fiber optic cables.
  • Functional inspection of the fan and cooling system.
  • Protected cleaning of the drive.
  • Inspection of the emergency stops circuit.
  • Inspection and storage of the parameters.
  • Function testing of the drive under normal conditions.
  • Basic measurements with supply voltage.
  • Inspection of the drive spare part inventory.

 

A report detailing any findings and also any recommendations for remedial action, would be provided following each visit. Where additional work comes to light as a result, this will be carried out or arrangements made for a second visit.

 

 

Inverter Repairs

 

BSP has an experience in the repair of inverters, AVR, solar trackers, soft starts, servo drives and other forms of electronic speed control used within industrial manufacturing and solar power plant and commercial environments. We have extensive data gathered over the time to support our repair activities from a wide range of manufacturers including but not limited to:

Together with the manufacturer’s data and experience in repairing drives, BSP also has comprehensive parts stock in BENBAN in our site.

 

Emergency Service Repairs

 

BSP are one of the few repair companies who offer a round the clock repair service, meaning that INVERTERS can be returned within few hours (subject to parts).

 

Repair Analysis

 

As part of the inverter maintenance program, a full report can be provided detailing the repair involved and, where possible, giving a root cause for the failure so that future failures can be prevented.

 

Inverter Maintenance - Review

 

BSP would aim to carry out a regular review of the program in order to measure the effectiveness of the activities involved and in order to ensure continuous improvement is being achieved.

Typically every quarter we would look to analyze the fault codes from the repair reports and, combined with the findings from our inspections, make recommendations for further actions to improve reliability further.

 

Benefits of the Inverter Maintenance Program

 

  •  Time

    By taking a proactive approach to the inverters on site, we would aim to reduce the downtime due to inverters to zero.

  •  Offer

    We are able to offer a one stop shop for all makes of drives on site.

  •  Functions

    We are able to combine all three major functions (planning, repair and maintenance) in one ‘package’ enabling us to easily make recommendations from our knowledge of each aspect of the program.

  •  Control Techniques

    . We are an approved representative for Control Techniques and our sales and repair staff are trained by CT.