Technical Field Services – JA Tech Power Systems

Technical Field Services

Acceptance and Preventative Maintenance Testing

Distribution and power transformers
Switchgear
Circuit breakers - air, vacuum, SF6 and oil
Protective relaying and metering
Current and potential transformers
Power cables (AC, DC, VLF, and PD tests)
Rotating machinery
Motor control centres
Grounding systems
Capacitors and capacitor banks
DC back-up and UPS systems
Protection and control circuitry
Insulating fluids
Fiber optics and various other communication systems

Technical Services

On-line Diagnostic Assessment Testing

Transformer Assembly and Oil Processing

Turn-key transformer assembly services including:

Receiving and inspection
Assembly of all external components
Internal inspections and repairs
Vacuum withstand, vacuum filling and oil processing

Transformer Maintenance and Repairs

Oil regeneration (Conventional Fuller’s Earth Filtration System)
Oil degasification
Transformer maintenance and repairs
- Rad replacement
- Gasket replacement
- Leak detection and repairs
- Protective device replacement
- Internal inspection and repairs
- Bushing replacement

Specialized Cable Testing

Repairs and Modifications

Repairs to all equipment and apparatus that form a part of a substation or distribution system
Repairs to medium and high voltage cable systems
Repairs to fiber and various other communication systems
Modification/upgrades to oil circuit breaker pneumatic operating systems
Repairs to on-line and off-line transformer tap changers
Modifications/upgrades to on-line tap changer automatic controls
Circuit breaker protective relaying retrofits