| HV maintenance services (High Voltage transmissions) | | | | may cause outage or catastrophic failures. |
| provide maintenance for a wide range of substation | | | | There are other preventative measures and this can |
| and line equipment, and will also include outage | | | | include transformer turns ratio testing, double power |
| response and equipment switching services. All the | | | | factor testing, on-line monitoring of gas levels in oil, and |
| work is carried out by highly qualified personnel, and | | | | excitation testing. Other services may include oil |
| on-site and off-site maintenance solutions helps keep | | | | analysis to detect dissolved gases, dielectric and |
| high voltage equipment running in excellent condition. | | | | interfacial tension, and detection for moisture. |
| HV maintenance refers to supplying services such as | | | | Some of the maintenance solutions that HV |
| preventative maintenance and predictive testing. | | | | maintenance companies deal with can include any or |
| Predictive testing helps track the performance and | | | | all of the following: |
| trends of a system and identifying any equipment | | | | · Transmission line maintenance: Live line bare hand |
| problems before they affect the system thus ensuring | | | | work |
| system reliability. | | | | · Transformer maintenance |
| Most HV maintenance services will employ the latest | | | | · Battery maintenance and testing |
| technology to ensure that customers, both industrial | | | | · Capacitor bank maintenance |
| and commercial, have access to complete information | | | | · UG cable and fault location |
| about the performance of their equipment. | | | | · Storm / emergency response |
| An excellent example of this is the use of infrared | | | | · Voltage regulator maintenance |
| thermography which is a critical tool that is used for | | | | · MVA transformers assembly and disassembly |
| analyzing switchgear, breakers, distribution equipment | | | | Maintenance and repair work helps keep equipment |
| and transformers. By utilizing some of the world's | | | | running at its full potential, and repair services such as |
| smallest and state-of-the-art cameras, infrared | | | | on-site diagnostic work and off-site equipment |
| thermography can detect thermal radiation which emits | | | | refurbishment ensures minimal downtime production |
| from mechanical or electrical systems, thus identifying | | | | and smooth running of facilities. |
| any problems before elevating temperatures, which | | | | |