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Corporate OverviewMaintenance service for power conversion facilities

In order to keep the mission critical facility of customer like UPS at the constantly prime and sound condition, we provide the proper advice on the preventive maintenance such as the recommendation of part replacements at the designated period and notice of any sign of product deterioration. In addition, given the high general hope on the renewable energy resources, there are growing numbers of soar farm projects in Japan. Our expert field service engineers on solar farm conduct periodic maintenance service.

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Uninterruptible power supply (UPS) system
Abnormalities on the solar panel are checked by thermographic diagnosis.
  • We provide various inspections (simple / normal / detailed inspection) in line with customer's needs.
  • We perform commissioning, maintenance, repair and various tests for power conversion products in general.
  • Our field service engineers, who completed our unique eductation programs using the actual solar facility, inspect the power conditioning subsystems (PCSs) at the customers' solar farm.

Maintenance and inspection

Drawing on our long-standing maintenance technologies, we provide high quality and highly reliable services for customers' overall facilities.

  1. (1)We will prepare a maintenance schedule based on the customer's installation environment and availability situation.
  2. (2)Considering the life-cycle span from the commencement of the commercial operation upto the renovation time of the facility, we will draw up a suitable maintenance for the customer.

Facility diagnosis

Diagnosis on the deterioration level of energy storage system

Energy storage battery unitsused in UPSs and DC power supply are the mission critical  facilities since it prevents the load side systems from the dynamic volage dip of AC power supply and power outage.
We perform internal resistance measurement for storage batteries using the BATTERY HiTESTER as a standard inspection item for degradation analysis of control valve type lead storage battery. We also perform residual product life diagnosis by using the storage battery short-term capacity tester manufactured by B-BEST in line with  the customers' requests. We will also help the customer in draftnig the suitable preventive maintenance plan for the  facilities based on checks of the past measured data.

Thermographic diagnosis

Abnormalities on the solar panel are checked by thermographic diagnosis.

  1. Infrared thermal imaging analysis on the back of panel
    Heat bank was detected on the top

  2. Peeling is visually checked

  3. When the panel was closely checked, we found a pinhole of 1 mm square.

Scene of an engineer training program based on our unique curriculum

Technical support service information

Click here for the details of the maintenance services and locations of Meiden Group.明電エンジニアリング 明電エンジニアグループのワンストップサービス

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