INQUIRIES: +234-816-730-0200 info@intesatgroup.com

Services

Turnaround Services for Rotating Machines

We offer an efficient Off-line turnaround service to give the insulation of your Rotating Machine a thorough health check. As a production-critical asset in your network, any unplanned outage of the rotating machine has huge cost implication on your business.

We can perform a series of quick, highly-sensitive Off-line tests during routine shutdowns, to help you prevent such costly failures. These tests can be scheduled at the commissioning stage or into planned outages on a regular basis to monitor the insulation condition over time, in order to develop an efficient Condition-Based maintenance plan. As a matter of fact, this saves you money by eliminating in-service failures.

PARTIAL DISCHARGE TESTING

Figure 15 Turnaround service For Rotating Machines
  • PD testing is seen as best early warning indicator of the deterioration of the winding insulation
  • The measurements are sensitive to deterioration processes that can occur within the winding insulation
  • PD measurements feature the needed sensitivity to discover a localized defective areas from the developing stage.

TANGENT DELTA (TD)/ POWER FACTOR (PF)

  • This TD/PF is the type of testing is an accurate and non-destructive test that measures the losses in the winding insulation.
  • Monitoring the TD/PF measurements over time can provide a means of insulation assessment.
  • Similar to IR/PI measurements, TD/PF measurements are indicative of the insulation condition of the entire winding.

INSULATION RESISTANCE (IR) AND POLARIZATION INDEX (PI)

  • These measurements are among the most widely used tests for the evaluation of the insulation condition of the stator winding of rotating machinery.
  • A voltage is applied through the rotating machine windings for a minute in order to measure the condition of the insulation.
  • With over 80 years of applicability, these measurements are reliable and quick way to roughly assess the overall insulation condition of a rotating machine

Note: HFCT or HVCC sensor can be permanently installed for On-line monitoring during planned outage or turnaround maintenance.

ROTATING MACHINES AND STATOR COILS:

We provide a wide range of test services to avail you detailed information about the insulation condition of your rotating machines.

Figure 16 Rotating machines and stator coils

AVAILABLE SERVICES

  • Diagnostic Partial Discharge testing
  • Monitored High Voltage withstand testing
  • Commissioning High Voltage testing
  • Factory and site acceptance High Voltage testing
  • After repair/maintenance High Voltage testing
  • Rotor condition assessment

TEST CAPABILITIES

  • On-line PD testing and monitoring
  • On-line PD testing and monitoring with pre-installed couplers: HFCT, ROGOWSKI coil, 80 pF coupling capacitors.
  • VLF (0.1 Hz sinusoidal) up to 42 KV (RMS) / 60 KV peak with PD and Tan Delta
  • Resonant test (15 -400 Hz up to 15 KV with PD and Tan Delta/Power factor
  • DC HiPot up to 60 KV
  • Insulation Resistance 10 KV
  • DC winding Resistance
  • Pole Drop test Polar
  • Polarization Index
  • MCSA

Power Cables

We provide a broad range of test services to avail you detailed information about the insulation condition of your Power cables.

Figure 17 Power cables

AVAILABLES SERVICES:

  • Diagnostic PD testing and location
  • Monitored HV withstand testing
  • Commissioning HV testing
  • Factory & site acceptance HV testing
  • After repair/maintenance HV testing
  • PD monitoring during soak test
  • Time domain reflectometry for fault location and fingerprinting

TEST CAPABILITIES

  • On-line PD testing and monitoring
  • On-line PD testing and monitoring with pre-installed couplers: HFCT, ROGOWSKI coil, 80 pF coupling capacitors.
  • VLF (0.1 Hz sinusoidal) up to 42 KV (RMS) / 60 KV peak with PD and Tan Delta
  • Resonant test (15 -400 Hz up to 15 KV with PD and Tan Delta/Power factor
  • DC HiPot up to 60 KV
  • Insulation Resistance 10 KV
  • Polarization Index
  • Time domain reflectometry

Switch Gear

We provide a broad range of test services to avail you detailed information about the insulation condition of switchgear.

Figure 18 Switchgear

AVAILABLE SERVICES

  • Diagnostic Partial Discharge testing
  • Commissioning High Voltage testing
  • Factory and site acceptance High Voltage testing
  • After repair/maintenance High Voltage testing

TEST CAPABILITIES

  • On-line PD testing and monitoring
  • On-line PD testing and monitoring with pre-installed couplers: UHF, TEV, AA, 80 pF coupling capacitors.
  • On-line PD location
  • Resonant test (15 -400 Hz up to 15 KV with PD and Tan Delta/Power factor
  • Power frequency (50Hz) up to 50 KV (30 mA) with PD
  • Insulation Resistance 10 KV

Transformers

We provide a broad range of test services to avail you detailed information about the insulation condition of Transformer.

Figure 19 Transformer

AVAILABLE SERVICES

  • Diagnostic Partial Discharge testing
  • Commissioning High Voltage testing
  • Factory and site acceptance High Voltage testing
  • After repair/maintenance High Voltage testing

TEST CAPABILITIES

  • Off-line PD testing
  • On-line PD testing and monitoring
  • On-line PD testing and monitoring with pre-installed couplers: UHF and Bushing Tap Sensor
  • On-line PD testing and monitoring with UHF drain valve sensor

Bushings and Instrument Transformers

We provide a broad range of test services to avail you detailed information about the insulation condition of your Bushings and Instrument Transformers.

Figure 20 Bushings and Instrument Transformer

AVAILABLE SERVICES

  • Diagnostic Partial Discharge testing
  • Commissioning High Voltage testing
  • Factory and site acceptance High Voltage testing
  • After repair/maintenance High Voltage testing

TEST CAPABILITIES

  • Resonant test (15 -400 Hz up to 15 KV with PD and Tan Delta/Power factor
  • Power frequency (50Hz) up to 50 KV (30 mA) with PD
  • CT ratio up to 800A
  • VT ratio up to 2 KV

Elite Oil & Gas Engineering Services

Contact Us

Administrative Office

19 Tombia Street Opposite Polo Club

GRA, Port Harcourt, Nigeria.

+234-816-730-0200

intesat@intesatgroup.com

Technical Office

Along Airport Road, Port Harcourt, Nigeria

+234-802-730-0200

info@intesatgroup.com

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