Integrated Engineering Solutions
Electrical Testing Company in the Philippines
Electrical Testing & Other Services Offered
IES offers a holistic brand of service that ensures comprehensive diagnosis and complete solutions tailor-fitted to customer's specific need.Standard commissioning and preventive maintenance testing of high, medium and low voltage generation, transmission and distribution substation and line equipment, the details of which are as follows:
Power Transformer Testing
- Ratio and Polarity Test
- Insulation Power Factor Test
- Insulation Resistance Test
- Winding Resistance Measurement
- Exciting Current Measurement
- Ground Resistance Test
- Tap Changer Test
- Oil Test/Dissolved Gas Analysis
Power Circuit Breaker Testing
- Timing Test
- Contact Resistance Test
- Ground Resistance Test
- Insulation Resistance Test
- Insulation Power Factor Test
- DC High Potential Test
Current Transformer Testing
- Ratio, Burden and Polarity Test
- Winding Resistance Test
- Phase and Magnitude Error Test
- Excitation/Saturation Test
- Insulation Resistance Test
- CT Circuit Continuity Test
Potential Transformer Testing
- Ratio and Polarity Test
- Winding Resistance Test
- Phase and Magnitude Error Test
- Secondary Burden Test
- Insulation Resistance Test
- VT Circuit Continuity Test
- Excitation Test
Disconnect Switch Testing
- DC High Potential Test
- Contact Resistance Test
- Insulation Resistance Test
Power Cable / Secondary Testing
- DC High Potential Test (power cables only)
- Insulation Resistance Test
- Continuity Test
Surge Arrester Testing
- DC High Potential Test
- Watts Dissipation Test
Molded Case Circuit Breaker Testing
- Insulation Resistance Test
- Contact Resistance Test
- Trip Test up to 2,000 Amperes
Special Tests
- Testing of Coil Deformation (axial and radial),
- Sweep Frequency Response Analysis - SFRA)
- Moisture Measurement of Oil-Paper HV Insulation in Power Transformers, Bushing, HV Potential Transformers and HV Current Transformers (Dielectric Response Analysis - DIRANA)
Special Tests
These are special tests for high voltage power transformers, bushings, current and potential transformers. They are advanced tests considered as the "CT scan and MRI" in high voltage testing.
1. Sweep Frequency Response Analysis (SFRA)
Injection of a sinusoidal excitation voltage with a continuously increasing frequency into one end of the transformer winding and measurement of the signal returning from the other end. The comparison of input and output signals generates a unique frequency response which can be compared to a reference data. Deviations indicate geometrical and/or electrical changes within the transformer. No additional data processing is required due to a direct measurement in the frequency domain.
2. Dielectric Response Analysis (DIRANA)
Determination of the dielectric properties of insulation materials within a wide frequency band by analyzing the moisture content particularly in oil-paper-insulated power transformers, based on dissipation factor and capacitance.
Functional and Accuracy Testing of Generator Relays
- Installation, upgrade and commissioning of protection systems
- Automation and integration of high voltage substation and distribution line equipment
- Impedance testing of transmission lines
- Electrical audit and power quality assessment of power systems
- Thermographic scanning and analysis of power systems
- Ultrasonic detection and analysis
- On-line condition-based monitoring of substation equipment
- Power system study (short circuit analysis, coordination study, etc.)
Other Tests
- Protective Relay Testing
- Meter / Transducers / IED Testing
- Recloser Testing
- Permittivity and Power Factor of Insulating Liquid Testing
- Primary Current Injection of up to 2,000 amperes
Automation of integrated substation equipment and devices including supervisory control and data acquisition (SCADA), data logging of meter reading, breakers and disconnect switch status, controls of breakers and disconnects, controls of on-load tap changers (OLTC) and monitoring of transformer installed devices and substation events
New SCADA System Master Station
Integration of substation devices such us protection & control relays, meters, circuit breaker controls, motorized disconnect controls and transformer monitors & controls
Installation, Testing and commissioning of pre-wired protection and control panels, meter panels, SCADA panels and other online substation monitoring devices
Panel Wiring & Assembly of protection and control panels, meter panels, SCADA panels and other online substation monitoring devices
Field Services
- Electrical Troubleshooting and Repair
- Preventive Maintenance
- Maintenance Testing
- High/medium/low voltage circuit breakers
- Instrument Transformer
- Meters and transducers tests and calibration
- Protective relays tests and calibation
- Switchgears and switchboards
- Panelboards and motor control centers
- Disconnect switches
- Automatic transfer switches
- Surge arresters
- Power Cables
- Communiciation
- Capacitors and reactors
- Generators and motors
- Ground Resistance Testing
- Time Travel Tests and Analysis
- Harmonic and Power Quality Measurements
- Voltage/Load Recording
- Line Impedance Testing
Engineering
- Protection System Upgrade
- Pre-wired Panels
- Retrofitting
- Power Quality Analysis
- Grounding Audit
- Electrical Design
- Consultancy
- Power System Studies
Startup
- Acceptance Testing
- Performance Baseline
Predictive Maintenance
- Dissolved Gas Analysis
- Thermographic Scanning
- Ultrasonic Detection
Testing Equipment
IES performs comprehensive electrical testing and inspections with the use of state-of-the-art test and measurement instruments.
Type of Test
- Contact Resistance
- CT circuit continuity
- Dielectric withstand voltage(2KV AC)
- Excitation current
- Excitation curve
- Ground Resistance
- Leakage reactance
- Measurement of complex impedances
- Phase and magnitude error
- Ratio, burden and polarity
- Secondary burden
- Short-circuit impedance measurement
- Single phase testing of relays
- Tap changer testing
- VT circuit continuity
- Winding resistance
- Current Injection up to 2,000 Amperes
Applications
- Power Transformer
- Current Transformer
- Voltage Transformer
- Resistance Testing
- Protection Relays
- Tangent Delta/Power Factor Test
- Line and Ground Impedances
- K-Factor
- Mutual Coupling
Measurement Capabilities
- Capacitance Cp
- Dissipation factor tan δ (tangent delta)
- Power factor cos θ
- Power (active, reactive,apparent)
- Impedance (absolute value, phase, inductivity, resistance, Q)
Protection Relay Testing
- Electromechanical relays
- Static relays
- Numerical relays
- IEC 61850-complianti IEDs
- Relay panels
- End to end testing with GPS or IRIG-B
- Busbar Protection
Other Capabilities
- Transient fault simulation
- Power Swing
- CT saturation simulation
- CB simulation
- Compensated network
- Transient Playback
- Checking SCADA annunciations
- Burden measurement
- CT/VT polarity checker
- Wiring checker
- Event recorder
- Plausibility check for CT/VT with primary injection
Applications
- Oil-paper insulations
- Power transformer
- Bushings
- Paper-mass insulated cables
- Generators and motors
Measurements Performed
- Dissipation factor, capacitance, permittivity, resistance and polarization current of HV insulations
- Aging detection for bushings
- Moisture analysis in oil-paper insulations
- Diagnosis of oil-paper insulations in HV bushings, generators, motors, and power cables
Diagnostics Performed
- Transformer check after short-circuit testing
- Transformer integrity verification after transport
- Transformer condition assessment after the occurence of high transient fault currents
- Routine diagnostic measurement
- Diagnosis after transformer alarm or protection tripping
- Testing after significant changes of monitored values (e.g. increased total dissolved combustible gases(TDCG) in oil)
- Further investigation of unusual routine test results
- Scientific investigation
SFRA can detect the following
- Winding deformation (axial and radial, such as hoop buckling, tilting and spiraling)
- Displacements between high and low voltage windings
- Partial winding collapse
- Shorted or open turns
- Faulty grounding of core/screens
- Core movement
- Broken clamping structures
- Problematic internal connections
Other Equipment
Manila Electric Railroad and Light Company (Meralco)
Completed protection and control panels in MERALCO Balintawak Substation. See projects for more details.
First Bukidnon Electric Cooperative (FIBECO)
Installation, testing and commissioning of a SCADA Master Station for FIBECO's electric distribution system. See Projects for more details
National Grid of the Philippines (NGCP)
Line Impedance Testing of Transmission Lines.
Functional and Accuracy Testing of Generator Relays
Asian Terminals Inc. (ATI)
Upgrade of Protection relays. (before and after)
Why IES?
IES is licensed by the Philippine Contractors Accreditation Board (PCAB) and follows the InterNational Electrical Testing Association (NETA) standards for Electrical Works.
Why IES?
IES is licensed by the Philippine Contractors Accreditation Board (PCAB) and follows the InterNational Electrical Testing Association (NETA) standards for Electrical Works.
Our key personnel have technical competency and experience in the different fields of electrical engineering like electrical design, consultancy, power system studies, supervisory control and data acquisition (SCADA) & automation, integration, installation and commissioning, panel wiring & assembly, maintenance and testing, etc. They are up-to-date in what is new in the electrical industry as they have access to the international technical trainings.
What's New?
24/7 Service AvailabilityIES ensures that services are implemented in accordance with the applicable international, local or manufacturer's standards. We are available 24/7.
