We recognize that the needs of our customers are unique, for that reason we offer a wide range of test services on a specialized focus in the industry.
Inspection, Testing and Certification of PPE & Arc Rated Tools
Any exposure to voltage over 32 volts requires the use of certified and inspected technical gloves and protectors.
Star Electrical Services has the most sophisticated and automated glove and PPE testing laboratory in the industry in Puerto Rico and the Caribbean.
Substations Services
4.16KV to 230KV
GIS SF6
Star provides maintenance, repair and cleaning services for substations.
Infrared Study – Service
A thermographic inspection is recommended to be performed every year to avoid or minimize hot spots.
- Study can detect
- Unbalance
- Overload
- Loose connections
- Insulation failure
Circuit Breakers – Services
Clean the breaker housing and inspect it for cracks or signs of overheating. Tighten all connections. Exercise the breaker several times to ensure the mechanism has freedom of movement and to allow contact wiping. Annual Testings.
Transformers – Dry and Oil
Every year. Examine the transformer tank and bushings for evidence of leakage. Inspect the bushings, insulators for broken or damaged parts, signs of overheating or arcing, or tracking. Clean all bushings, insulators, and surge arrestors of any dirt or dust accumulation. Tighten all conductor connections in accordance with manufacturer’s recommendations. If applicable, perform a ground resistance test.
Maintenance and repair.
Oil Tests
Insulating liquid samples should be taken annually and screen tested for dielectric breakdown, acidity, color, power factor, and interfacial tension. A Fault gas analysis or a Dissolved Gas-in-Oil (DGA) test conducted by a qualified testing laboratory should be performed annually. The results should be trended to track conditions and schedule maintenance, as necessary.
Switchgear
Every year. During de-energized maintenance, enclosures are to be vacuum cleaned of all loose dirt and debris — use of compressed air is not recommended since this may cause foreign particles to become embedded in the insulation or damage insulators. Any buildup of dirt or other contaminates that will not come off with vacuuming should be cleaned with lint free rags using cleaning solvents recommended by the manufacturer. Perform a visual inspections, tighten all connections and perform maintenance tests .
Oil Filtering and Degassing
The main purpose is to remove moisture, combustible gases and solid particles from mineral oils as well as natural and synthetic esters. This service is excellent degassing and moisture removal using heating elements and vacuum technology. Filtering and degassing the transformer oil will help to increase the useful life of the equipment.
EL CID Test
Electromagnetic Core Imperfection Detection (EL CID) testing is accepted world-wide for reliable and safe detection of stator core inter-laminar insulation faults.
Generator Specialist
Flux probe Design, Installation and tests
Test for detecting rotor winding shorted turns in round rotor and salient pole generators while the generator is online.
IDAX Test
Test for insulation diagnostics instrument based on dielectric frequency response (DFR). DFR is the measurement of capacitance and losses (PF) over multiple frequency.
SFRA Test
Sweep Frequency Response Analysis or SFRA Test can detect efficiently, displacement of transformer core deformation and displacement of winding, faulty core grounds, short circuit turns, open winding, etc.
Magnetron Atmospheric Condition – MAC test
The projected life of a vacuum interrupter is assumed by measuring pressure leakage over time at the manufacturing stage.
The magnetic field test is set up by simply placing the vacuum interrupter into a field coil, the internal pressure can be calculated based on the amount of current flow.
Load Flow Study
This instrument records power quality and power flow information simultaneously. The recorded information can be viewed via the build-in graphics displayed or downloaded to a computer.
High voltage termination and splice services
For voltage from 15 KV to 46 KV.
Earth Grounding Mat Test Equipment
is designed to measure earth electrode resistance and soil resistivity
