Shutdown Maintenance

ON Engineers > Shutdown Maintenance

Shutdown Maintenance Services

Servicing of Electrical Installations is one of ON Engineers’ fortes.

The ON Engineers team has extensive experience in preventive scheduled maintenance, calibration of protection relays, on-demand corrective servicing of High Tension (HT) switchgears and transformers, as well as Low Tension (LT) switchboards installed within a premise.

Our skilled engineers have carried out maintenance servicing of electrical installations such as government, commercial, retail, industrial and mission-critical buildings such as hospitals and data-centres and telephone exchanges. Our extensive experience in this area enables us to provide value-added services to many organisations in the public and private sectors.

The benefits of engaging ON Engineers for the Servicing of Electrical Installations are as follows:-

  • Maintenance of high voltage apparatus in accordance with Energy Market Authority's guidelines and manufacturers’ recommendations.
  • Safe and effective operation of an electrical system with minimum risk of breakdown and consequent interruption of power supply.
  • A comprehensive written technical report providing critical data and recommendations after maintenance servicing work, allowing management to have a better understanding of the condition of their electrical system and the areas that require their attention.
  • Advisory and actual services in follow-ups to the servicing, such as repairs and replacements.
  • Besides our pre-servicing, servicing and post-servicing activities, we value-add by offering online storage of servicing reports through our Online File Management System so that they are able to easily access these reports 24/7.
  • Follow-up with our clients to strengthen and maintain their servicing regime.

Activities involved in the service and maintenance includes activities such as:

EQUIPMENT - HT/LT SWITCHGEARS

  • AC High Voltage Test
  • Contact Resistance Test
  • Functional Test
  • Primary Injection for CT Ratio and Polarity Test
  • Secondary Injection Test for Relays

EQUIPMENT - CABLES

  • AC 50Hz high voltage test
  • AC VLF high voltage test
  • DC high voltage test
  • Dissipation factor test
  • Online and Offline PD measurement
  • OWTS test
  • Polarisation Index test

EQUIPMENT - TRANSFORMERS

  • AC High Voltage Test
  • Dissipation factor test
  • DGA and oil quality test for transformer oil
  • Online and Offline Partial Discharge measurement
  • Reconditioning of transformer oil
  • Transformer Repairs
  • Voltage Ratio and Vector Group Test
  • Winding Resistance Test

The main Singapore Standard for Electrical Installation Maintenance is “SS538 : 2008 - Code of Practice for Maintenance of Electrical Equipment of Electrical Installations”

TECHNICAL ARTICLE LINK

For enquiries, kindly contact us at : +65 6795 4666 or : general@onengineers.com.