POWER SYSTEM PROTECTION

- Coordination and calculation of Adjustments of the
electrical protections of substations, power plants and
transmission lines.
- Protection relay calibration.
- Studies of load flow and short circuit through
specialized software

ELECTRICAL TESTS FOR HIGH VOLTAGE EQUIPMENT
POWER TRANSFORMERS
- Tests for insulation in alternating current, power factor and / or dissipation and measurement of capacitances between windings, windings and capacitive bushings.
-Measurement of power factor to dielectric oil
- Measurement of excitation current
- Transformation relationship test
- Measurement of ohmic resistance to primary and secondary windings. If the transformer has a tap-changer under load, the dynamic resistance test is carried out by checking the status of the switch contacts under load.
- Direct current insulation tests
- Measurement of dispersion reactance and short-circuit impedance

POWER SITCHES
- Insulation tests.
- Measurement of operating times.
- Measurement of the displacement, overtravel, penetration, rebound and speed of the movable contacts of the switch during each closing and opening operation.
- Measurement of ohmic resistance of the main contacts

CURRENT TRANSFORMERS
- Tests of power factor and / or dissipation and capacitance
- Insulation resistance tests
- Test of relation, load and polarity
- Phase and magnitude error
- Saturation test
- Measurement of ohmic resistance to windings
- Measurement of secondary load

VOLTAGE TRANSFORMERS
- Power factor and dissipation and capacitance tests
- Excitation current (inductive voltage transformers)
- Insulation resistance tests
- Polarity conversion ratio test
- Phase and magnitude error
- Measurement of secondary load

GENERATORS
- Power factor and dissipation tests
- Tip-up and Tip-down
- Measurement of capacitance
- Measurement of insulation resistance
- Calculation of the polarization index
- Measurement of ohmic resistance

APARTMENTS, SECTIONERS, SUPPORT INSULATORS AND ANY OTHER HIGH VOLTAGE EQUIPMENT.

All test equipment has their respective calibration certificates valid and traceable to electrical standards maintained in the PTB of Germany, OEEV of Austria or NIST of the USA.
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