Condition Monitoring Services

Prognosys

World Wide Power Services in Association with Prognosys EMS Private Limited offer various services like Diagnostic testing, Condition monitoring, Life assessment and Fault finding on HV Generators and HV Motors of rating up to 1000 MW. We offer these services using our state-of-the-art testing equipment and testing techniques, which are best in the industry and with a team of very highly qualified and experienced people who are well versed with all inspection, testing and condition monitoring techniques to give our customers very accurate and reliable services.

In this condition assessment package, we will assess the condition of total insulation system of electrical rotating machine consisting of HV Generators and HV Motors.

Condition Assessment Technique will be implemented as per following techniques listed below, which will assess the condition of Machine Insulation System in total. The various techniques are detailed as below.
1. Visual & Endoscopic Inspection
2. Insulation Resistance, Polarisation Index and DC Absorption test
3. Tan Delta & Capacitance Test
4. Partial Discharge Analysis
5. Digital ELCID Test
6. DC Step Voltage Test
7. Wedge Deflection/Mapping Test
8. DC Winding Resistance
9. Natural Frequency Test
10. Coupling Resistance Test
11. Rotor RSO Test
12. Rotor AC Impedance Tests
13. Exciter Tests
14. Diodes & Fuses Tests

The main objective of this condition assessment is to generate a report which gives the information to achieve following tasks
• To arrest the deterioration in performance
• To improve the availability, reliability, efficiency and safety of equipment
• To regain lost capacity
• To extend useful life beyond design life and save investment on new equipment

We also offer online Condition Monitoring services on HV Generators and HV Motors. The services include

  • Online Partial Discharge Monitoring
  • Online Rotor Flux Monitoring
  • Online End winding vibration Monitoring
  • Motor Current Signature Analysis
  • Motor Vibration Analysis
  • Thermographic Services

Also World Wide Power Services in association with Prognosys will supply a Generator rotor winding fault detection equipment called PROGNO-RSO which is used to identify various winding faults in rotor winding.

LIST OF IMPORTANT OFFLINE TEST EQUIPMENT
Equipment Make Specification
M4100
DOBLE USA
Totally Automated latest Tan Delta Power factor test kit from Doble, USA. Range 0 to 12 kV

Power Factor/Tan:
Range: 0 to ±100.00%
PF 0 to ±999.99%
Tan d Resolution: 0.01% (0.0001)
Capacitance Range: 0 to 5.0 μF
Resolution: 0.01 pF
Resonator
DOBLE USA
Resonator combined with M4100 above gives output current capacity of 4 Amps, well suitable for Generators upto highest rating. Also can be well used for water cooled Generators.
High Voltage Capacitance & Tan Delta Test Set
ELTEL INDIA
Capacitance Range :0 to 0.26 _F (Bridge range)
(ACTS-12K Plus with the 12 kV/ 200 mA Power Supply Max Capacitance of upto 0.06 _F @ 10 kV, 50 Hz or
0.05 _F @10 kV, 60 Hz can be tested)
DISSIPATION FACTOR (TAN DELTA)
DF Range : 0 to ± infinity
Accuracy : ± 1% of reading ± 0.05%
DC HIGH VOLTAGE KIT
HIGH VOLTAGE USA
Output : 0 to 75 kV DC, 10 mA DC HV Kit is used for DC Ramp test and also DC Hipot testing.
ELCID EVOLUTION
IRISPOWER CANADA
State-of-the-art equipment for Stator Core Fault Detection.
Partial Discharge Monitoring System
PDTECH SWITZERLAND
State-of-the-art equipment for online and offline partial discharge monitoring on rotating machines.
Digital Loss factor Analyzer
PDTECH SWITZERLAND
Compact and high precision loss factor and capacitance measurement device. Can be used upto 15 kV and any rating Generator when combined with suitable power supply.
Partial Discharge Coupling Capacitor
PDTECH SWITZERLAND
Coupling Capacitor used in measurement of partial discharge.
Corona Probe
IRISPOWER CANADA
Equipment used to Pin point partial discharge effected area
RSO (Recurrent Surge oscilloscope)
PROGNOSYS INDIA
RSO Kit used to detect rotor winding faults and also pin pointing the faults.
Oscilloscope
TEKTRONIX CHINA
Used in various tests like RSO, etc
MicroOhm 10A MI 3250 Measurements: >1000 measurements of 200 mW load @ 10 A test current & 1s measurement duration.
Insulation Tester Range up to 5 TΩ
Range up to 5500 V DC
Range up to 1.4 mA
Digital Multimeter Fluke 77 Voltage: 600 V AC/DC
Current: 600 A AC
Resistance: 6000 Ω
Continuity: ≤ 30 Ω
Digital Loss factor & PD Analyzer
PDTECH SWITZERLAND
Compact and high precision loss factor and capacitance, Partial discharge measurement device. Can be used up to 15 kV and any rating Generator when combined with suitable power supply.
INFRARED CAMERA FLIR E6 Used to locate the hotspots And temperature ranges of Generators and transformer Online as well as off-line  
Endoscopic Inspection kit & Boro scope Videoscopic Equipment is used for visual inspection of Generator Rotor and Stator with recording feature.
NFT/Bump kit Crystal Instruments Equipment used for stator end winding resonance test for checking the mechanical integrity and also can be used for Natural Frequency
Testing.
Hydraulic Wedge Deflection Kit Equipment used to check the looseness of the wedges in the stator (fitted with ripple spring).

Note: All the equipments are calibrated and the calibration certificate will be provided during testing.