| Jan 20 2020 |
Protection |
MV GIS timing test through VDS measurement
Presenter Ali Husain
|
| Jan 20 2020 |
Cable |
Offline PD and Tan Delta measurements on MV/HV cables using the ICMsystem and ICMflex
Presenter Ceren Gürbüz
|
| Jan 19 2020 |
Transformer |
Live demo of winding resistance and ratio using MWA
Presenter Jaffer Aldurazi
|
| Jan 18 2020 |
Cable |
Part 1: MV Cable test and diagnostics (application and tools)
Presenter Mohammed Saleh
|
| Jan 05 2020 |
Transformer |
Live demo of CT testing using TRAX
Presenter Jaffer Aldurazi
|
| Jan 04 2020 |
Circuit breaker |
HV circuit breaker first trip measurement
Presenter Ali Husain
|
| Dec 30 2020 |
Transformer |
A guide for testing and diagnosis of OLTC, case study
Presenter Jaffer Aldurazi
|
| Dec 23 2020 |
Partial discharge |
Introduction to partial discharge on transformers and GIS
Presenter Mohammad Tariq
|
| Dec 18 2020 |
Protection |
LV circuit breaker ground fault protection utilizing primary injection test method
Presenter Daniel Carreno
|
| Dec 14 2020 |
Transformer |
Live demo of power transformer testing using TRAX multifunction tester: Part 3 (insulation tan delta test including ITC: temperature correction, narrow band DFR , HV tip up)
Presenter Jaffer Aldurazi
|
| Dec 09 2020 |
Transformer |
Live demo of power transformer testing using TRAX multifunction tester: Part 2 (advance transformer tests FRSL, short circuit impedance and magnetic balance)
Presenter Jaffer Aldurazi
|
| Dec 04 2020 |
Protection |
Distributed generation protection in smart grid electrical systems – testing challenges
Presenter Andrea Bonetti
|
| Dec 03 2020 |
Protection |
Distributed generation protection in smart grid electrical systems – testing challenges
Presenter Andrea Bonetti
|
| Dec 02 2020 |
Transformer |
Live demo of power transformer testing using TRAX multifunction tester: Part 1 (ratio, winding resistance)
Presenter Jaffer Aldurazi
|
| Nov 27 2020 |
Transformer |
Introduction of multi functional tester for substation maintenance
Presenter Michael Evangelista
|
| Nov 26 2020 |
Circuit breaker |
MV GIS CB testing
Presenter Nils Wäcklén
|
| Nov 25 2020 |
Motor |
Dynamic motor testing: what can MCSA (Motor Current Signature Analysis) tell us?
Presenter Paul Knock
|
| Nov 25 2020 |
Relay |
Directional overcurrent testing with SVERKER900
Presenter Ali Husain
|
| Nov 24 2020 |
GET |
Why and how to interpret DAR and PI measurement
Presenter Michael Evangelista
|
| Nov 24 2020 |
GET |
Measuring high prospective fault currents with the NIM1000
Presenter Tony Wills
|
| Nov 23 2020 |
Partial discharge |
Partial Discharge measurement for factory acceptance tests of power and distribution transformers
Presenter Daniel Hearing
|
| Nov 20 2020 |
Transformer |
Understanding of IEC standard for CT maintenance testing
Presenter Ali Husain
|
| Nov 20 2020 |
Motor |
Fundamentals of motor protection
Presenter David Beard
|
| Nov 19 2020 |
GET |
Alternative ground resistance testing methods
Presenter Jeff Jowett
|
| Nov 18 2020 |
Motor |
Static motor testing – what tests are important?
Presenter Paul Knock
|
| Nov 18 2020 |
Protection |
Directional overcurrent testing with Freja500/SMRT
Presenter Ali Husain
|
| Nov 18 2020 |
Transformer |
Transformer health management using temporary on-line partial discharge monitoring
Presenter: Dr Mihai Huzemezan, Managing Director Power Diagnostix gmbH
|
| Nov 18 2020 |
Transformer |
Transformer health management using temporary on-line partial discharge monitoring
Presenter: Dr Mihai Huzemezan, Managing Director Power Diagnostix gmbH
|
| Nov 17 2020 |
Circuit breaker |
HV GIS CB testing
Presenter Nils Wäcklén
|
| Nov 16 2020 |
Relay |
SVERKER900 and new frequency standard
Presenter TBC
|
| Nov 13 2020 |
Transformer |
10 kV HV CVT/VT and HV TTR measurements with Delta4000
Presenter Ken Petroff
|
| Nov 12 2020 |
Partial discharge |
Partial discharge measurement on GIS/GIL using AIAcompact
Presenter Stefan Seibel
|
| Nov 11 2020 |
Motor |
Introduction to motor testing
Presenter Paul Knock
|
| Nov 11 2020 |
Relay |
Differential protection testing with Freja500/SMRT
Presenter Ali Husain
|
| Nov 10 2020 |
Circuit breaker |
MV CB testing
Presenter Zumaedi
|
| Nov 6 2020 |
Transformer |
Transformer insulation oil tan delta measurement
Presenter Michael Evangelista
|
| Nov 5 2020 |
Cable |
Megger MFM10-1 sheath fault location with leading “Voltage Drop” methods
Presenter Leno Soh
|
| Nov 4 2020 |
Partial discharge |
Off-line PD testing of rotating machines using ICMflex and ICMsystem
Presenter Jeroen Goedertier
|
| Nov 4 2020 |
Services |
Introduction of Megger technical services
Presenter Mourad Hamdi/Hussain Al Juffairi
|
| Nov 4 2020 |
Protection |
Protection series: Part 2 - power swing detection
Presenter Ali Husain
|
| Nov 3 2020 |
GET |
Power quality applications, measurements, and analysis
Presenter Andrew Sagl
|
| Nov 3 2020 |
Cable |
Locating ground faults with the GL660
Presenter Tony Wills
|
| Oct 28 2020 |
Motor |
Introduction to (MCSA) dynamic motor testing
Presenter Paul Knock
|
| Oct 27 2020 |
Cable |
Cable fault location: advanced techniques
Presenter Mohammed Saleh
|
| Oct 27 2020 |
Protection |
Protection series: Part 1 - Distance (Impedance)
Presenter Ali Husain
|
| Oct 26 2020 |
Transformer |
True three phases ratio measurement including OLTC
Presenter Ken Petroff
|
| Oct 26 2020 |
Motor |
Virtual best practices seminar - motor testing day 2 insulation assessment of motors through VLF and PD testing
Presenter Jeroen Goedertier and Hein Putter
|
| Oct 25 2020 |
Motor |
Virtual best practices seminar - motor testing day 1 static and Dynamic testing motor's state of health
Presenter Leslie Reed and Abel Gonzalez
|
| Oct 23 2020 |
Relay |
Easy and accurate three phase transformer differential relay testing
Presenter Dineshbabu Nagalingam
|
| Oct 23 2020 |
Cable |
Testing Tactics: State-of-the-art diagnostics technologies for proactive cable condition assessment
Presenter Robert Probst
|
| Oct 21 2020 |
Motor |
Keep your motors running! What tests are the important?
Presenter Paul Knock
|
| Oct 21 2020 |
Circuit breaker |
Live demo of static and dynamic resistance measurement on HV circuit breakers
Presenter Ali Husain
|
| Oct 19 2020 |
Partial discharge |
Quality control of HV products using ICMcompact (IEC60270 measurements)
Presenter Zumaedi/Michael
|
| Oct 18 2020 |
Transformer |
Basics of SFRA test on transformer: Part 2 (Advanced)
Presenter Jaffer Aldurazi
|
| Oct 16 2020 |
Transformer |
Dielectric Frequency Responses on bushing
Presenter Dr. Diego Robalino
|
| Oct 15 2020 |
Relay |
An essential tool box for testing of renewable energy protection
Presenter Stefan Larsson
|
| Oct 14 2020 |
Circuit breaker |
Introduction to GIS HV circuit breaker testing – DualGround technology
Presenter Ali Husain
|
| Oct 14 2020 |
Motor |
Dynamic motor testing case studies
Presenter Paul Knock
|
| Oct 12 2020 |
Cable |
Non-invasive tool for online PD measurements in MV and HV substations
Presenter Ahmad Rahman
|
| Oct 11 2020 |
Transformer |
Basics of SFRA test on transformer: Part 1
Presenter Jaffer Aldurazi
|
| Oct 09 2020 |
Partial discharge |
Fundamentals of partial discharge measurements
Presenter Zumaedi/Michael
|
| Oct 08 2020 |
Transformer |
Insulation HV breakdown testing principle
Presenter Michael Evangelista
|
| Oct 07 2020 |
Relay |
Directional overcurrent relaying: now and then
Presenter Zumaedi/Michael
|
| Oct 07 2020 |
Motor |
Motor Testing Online Seminar
Presenter Mike Herring
|
| Oct 07 2020 |
Battery |
A guide to battery bank condition assessment
Presenter Ali Husain
|
| Oct 06 2020 |
Motor |
Predictive maintenance of electric motors
Presenter Paul Knock
|
| Oct 05 2020 |
GET |
DC insulation resistance testing: use of guard terminal
Presenter Zumaedi/Michael
|
| Sep 30 2020 |
Transformer |
Turns ratio testing: principle, operation and new measurement techniques
Presenter Michael Evangelista
|
| Sep 29 2020 |
Circuit breaker |
HV circuit breaker: first trip measurement and coil curve analysis
Presenter Nils Wäcklén
|
| Sep 28 2020 |
GET |
Power quality: a detailed understanding of harmonics
Presenter Michael Evangelista
|
| Sep 25 2020 |
Cable |
Megger PD Scan (Online Handheld PD Detector)
Presenter Ahmad Rahman
|
| Sep 24 2020 |
Transformer |
OLTC static/dynamic/timing measurement
Presenter Michael Evangelista
|
| Sep 23 2020 |
Motor |
Electric motor testing case studies
Presenter Paul Knock
|
| Sep 22 2020 |
Relay |
Introduction to automated distance relay testing level 2
Presenter Zumaedi
|
| Sep 18 2020 |
Transformer |
High voltage DFR for bushing and instrument transformer diagnosis
Presenter Michael Evangelista
|
| Sep 18 2020 |
Circuit breaker
Protection
|
MV and HV circuit breaker testing beyond timing and travel measurements
Presenter Volney Naranjo
|
| Sep 17 2020 |
Relay |
Compact and cost effective substation testing toolbox with manual relay testing provisions to test differential and distance relays
Presenter Dineshbabu Nagalingam
|
| Sep 16 2020 |
Transformer, motors, partial discharge |
Partial discharge testing for GIS, transformers and motors
Presenter Mohammed Tariq
|
| Sep 16 2020 |
Partial discharge/circuit breaker |
Partial discharge measurement on GIS/GIL using AIAcompact
Presenter Stefan Seibel
|
| Sep 15 2020 |
Motor |
Electric motor types, designs and applications
Presenter Paul Knock
|
| Sep 14 2020 |
Relay |
Automated distance relay testing: level 1
Presenter Zumaedi
|
| Sep 11 2020 |
Cable |
Megger NEW digiPHONE+2
Presenter Tony Walker
|
| Sep 10 2020 |
Partial discharge |
Partial discharge measurement and diagnosis of gas insulated switchgear
Presenter Jayesh Patel/Keyul Patel
|
| Sep 09 2020 |
Transformer |
Transformer demagnetisation
Presenter Michael Evangelista
|
| Sep 08 2020 |
GET |
Take the heat off finding faults using Megger TC3231
Presenter Michael Evangelista
|
| Sep 07 2020 |
Protection |
Over current automated test plan using new Megger protection software: part1
Presenter Zumaedi
|
| Sep 04 2020 |
Cable |
Megger Cable Identifier
Presenter Tony Walker
|
| Sep 03 2020 |
GET |
Precision ground testing
Presenter Zumaedi
|
| Sep 02 2020 |
Motor |
Quick, easy, practical motor health testing with the MTR105
Presenter Paul Knock
|
| Sep 01 2020 |
Circuit breaker |
Primary injection testing of low voltage circuit breakers
Presenter Zumaedi
|
| Aug 28 2020 |
Transformer |
Significance of variable frequency tan delta
Presenter Michael Evangelista
|
| Aug 27 2020 |
Circuit breaker |
HV circuit breaker motion measurement
Presenter Nils Wäcklén
|
| Aug 25 2020 |
Relay |
Addressing the challenges of multiple vendors with multiple files while testing distance protection relays
Presenter Dineshbabu Nagalingam
|
| Aug 24 2020 |
GET |
Introduction to ground testing
Presenter Zumaedi/Michael Evangelista
|
| Aug 21 2020 |
Transformer
|
Narrow band dielectric frequency response – application on HV and EHV OIP bushings
Presenter Diego Robalino
|
| Aug 19 2020 |
GET |
Industrial electrical testing Megger: low resistance yesting?
Presenter Paul Knock/Michael Evangelista
|
| Aug 19 2020 |
Transformer |
High voltage DFR for bushing and instrument transformer diagnosis
Presenter Jaffar Al Durazi
|
| Aug 18 2020 |
Transformer |
Transformer testing - advanced
Presenter Joacim Sköldin
|
| Aug 13 2020 |
Protection |
Basics of distance protection
Presenter Zumaedi/Michael Evangelista
|
| Aug 12 2020 |
GET |
Industrial electrical testing Megger: test or brand and IR testing
Presenter Paul Knock/Michael Evangelista
|
| Aug 11 2020 |
Motor |
Condition monitoring of electrical motors
Presenter Paul Knock
|
| Aug 10 2020 |
Cable |
Cable fault location with EZ-Thump and digiPHONE
Presenter Tony Walker
|
| Aug 07 2020 |
Transformer |
Control and monitoring of transformer dry-out process using DFR technology
Presenter Dr. Diego Robalino
|
| Aug 06 2020 |
GET |
Why and how to interpret DAR and PI measurement
Presenter Michael Evangelista
|
| Aug 05 2020 |
Motor |
Why test motors?
Presenter Paul Knock
|
| Aug 04 2020 |
Protection |
Directional overcurrent relaying: now and then
Presenter Zumaedi/Michael
|
| Aug 03 2020 |
Cable |
HVB10/MFM10 comparisons
Presenter Tony Walker
|
| Jul 30 2020 |
Transformer |
Transformer testing - basic
Presenter Joacim Sköldin
|
| Jul 29 2020 |
|
An introduction to building and wiring safety
Presenter Michael Evangelista
|
| Jul 28 2020 |
Circuit breaker |
Circuit breaker testing - advanced
Presenter Nils Wäcklén
|
| Jul 27 2020 |
Cable |
Effect of different voltage waveforms on Partial Discharge results on Medium Voltage cables
Presenter Leno Soh
|
| Jul 24 2020 |
Transformer |
Transformer turns ratio test: beyond the basic facts
Presenter Michael Evangelista
|
| Jul 23 2020 |
Protection |
Addressing the challenges of multiple vendors with multiple files while testing differential protection relays
Presenter Dineshbabu Nagalingam
|
| Jul 22 2020 |
Insulation
transformer
|
Confidence in AC insulation with narrowband dielectric frequency response (NB DFR)
Presenter Milind Thakkar
|
| Jul 22 2020 |
Partial discharge |
Quality control of HV products using ICMcompact (IEC60270 measurements)
Presenter Ceren Gürbüz
|
| Jul 21 2020 |
Low resistance |
Fundamentals of low resistance testing
Presenter Michael Evangelista
|
| Jul 21 2020 |
Protection |
Element based testing on a microprocessor relay using Megger Relay Test Management Software (RTMS)
Presenter David Beard
|
| Jul 20 2020 |
Cable |
PD testing in life management of cable
Presenter Leno Soh
|
| Jul 17 2020 |
Protection (SMRT) |
Feeder protection in power distribution systems
Presenter Abel Gonzalez
|
| Jul 17 2020 |
Transformer |
Introduction to power transformer maintenance and testing
Presenter Michael Evangelista
|
| Jul 16 2020 |
Partial discharge |
Partial discharge measurement for factory acceptance tests of power and distribution transformers
Presenter Keyur Patel
|
| Jul 15 2020 |
Protection |
Fundamentals of generator protection testing
Presenter Zumaedi
|
| Jul 14 2020 |
Motor testing |
Detecting weak motor insulation
Presenter Paul Knock
|
| Jul 13 2020 |
Portable appliance testing |
Fitness check of portable appliances
Presenter Michael Evangelista
|
| Jul 10 2020 |
Battery testing |
Battery testing with Torkel and BVM
Presenter Michael Evangelista
|
| Jul 09 2020 |
Motor testing |
Dynamic motor testing
Presenter Paul Knock
|
|
Jul 09 2020
|
General electrical test |
How to perform battery impedance testing with Megger BITE instrument
Presenter Jason Aaron
|
| Jul 08 2020 |
Transformer |
Transformer differential protection: challenges and solutions
Presenter Michael Evangelista
|
| Jul 07 2020 |
Protection |
An insight into end-to-end testing philosophy
Presenter Zumaedi
|
| Jul 02 2020 |
Earth testing |
Testing large earth systems
Presenter Zumaedi
|
|
June 19 2020
|
Rotating machines
Power diagnostics
|
Off-line partial discharge testing of rotating machines
Presenter Charles Nybeck
|
|
June 15 2020
|
|
A guide for testing and diagnosis of OLTC and case study
Presenter Jaffer Aldurazi
|
| June 4 2020 |
Insulation Testing |
Fundamentals of insulation resistance
Presenter Jeff Jowett
|
| May 28 2020 |
Transformer |
Confidence in AC Insulation with Narrowband Dielectric Frequency Response (NB DFR)
Presenter Ken Petroff
|
| May 26 2020 |
Transformer |
Methods and improvements in transformer winding resistance testing
Presenter Vince Oppedisano
|
| May 22 2020 |
Protection |
An insight into end-to-end testing philosophy
Presenter Sughosh Kuber
|
| May 21 2020 |
Transformer |
Transformer test methods Part 2
Presenter Tony Wills
|
| May 19 2020 |
Transformer |
Transformer test methods Part 1
Presenter Tony Wills
|
| May 13 2020 |
Partial discharge |
Off-line PD testing of rotating machines using ICMflex and ICMsystem
Presenter Jeroen Goedertier
|
| May 13 2020 |
Motor testing
Baker
|
Dynamic motor testing – detecting mechanical issues on inaccessible motor driven systems
Presenter Michael Herring
|
| May 6 2020 |
Motor testing
Baker
|
Dynamic motor testing – rotor bar case study
Presenter Michael Herring
|
| Apr 29 2020 |
Motor testing
Baker
|
Megger Baker surge waveform analysis – the benefits of ppEAR
Presenter Michael Herring
|
| Apr 23 2020 |
Transformer |
Confidence in AC Insulation with Narrowband Dielectric Frequency Response (NB DFR)
Presenter Milind Thakkar
|
| Apr 23 2020 |
Cable
VLF
|
VLF test principles
Presenter Tony Walker
|
| Apr 22 2020 |
Baker Instruments
Motor testing
|
Surge testing tips for motor manufacturers/R&D companies
Presenter Mike Herring
|
|
April 22 2020
|
Substation |
Event driven maintenance aspects for IEC 61850 substations
Presenter Andrea Bonetti
|
|
Apr 21 2020
|
Relay
MRCT
|
CT test with the Megger range
Presenter Marius Averitai
|
|
Apr 17 2020
|
Battery/earth |
Testing large earth systems
Presenter Tony Wills
|
| Apr 17 2020 |
Cable
Thumpers, SFX and PFL
|
Testing Tactics: MV and HV cable fault location utilizing ARM method
Presenter Javier Ruiz
|
| Apr 16 2020 |
Battery/GET |
Battery testing with TORKEL and BVM
Presenter Tony Wills
|
| Apr 16 2020 |
Cable |
Advanced methods in cable fault location
Presenter Robert Probst
|
| Apr 15 2020 |
Baker Instruments |
How to find weak insulation between turns and phases in a 3 phase motor
Presenter Mike Herring
|
| Apr 15 2020 |
Cable |
Introduction to cable fault location on medium voltage cables
Presenter Robert Probst
|
| Apr 9 2020 |
Transformer |
Transformer demagnetisation
Presenter Per Lindestam
|
| Apr 9 2020 |
Cable
EZ-THUMP, DigiPhone
|
Cable fault location with EZT and digiphone
Presenter Tony Walker
|
| Apr 9 2020 |
Transformer
Test Van
|
Transformer test van - benefits and set-up, reference cases and approaches
Presenter Denis Denisov
|
| Apr 8 2020 |
Protection |
Commissioning and maintenance tests for frequency protection with consideration to the new standard IEC 60255-181:2019
Presenter Andrea Bonetti
|
| Apr 8 2020 |
Baker Instruments |
Benefits of DC step voltage test over DC hipot test
Presenter Mike Herring
|
| Apr 7 2020 |
Cable
MFM, HVB
|
HVB10/MFM10 comparisons
Presenter Tony Walker
|
| Apr 2 2020 |
Protection
Circuit breaker
|
Circuit breaker test methods part 2
Presenter Marius Averitai
|
| Mar 31 2020 |
Circuit breaker |
Circuit breaker test methods part 1
Presenter Marius Averitai
|
| Mar 30 2020 |
Motor testing |
How to troubleshoot a 3-phase induction motor using our MTR105
Presenter Joseph Di Crea
|
| Mar 27 2020 |
Circuit breaker |
DualGround
Presenter Nils Wäcklen/Niclas Wetterstrand
|
| Mar 27 2020 |
Baker Instruments |
Baker static Motor testing – practical session
Presenter Mike Herring
|
| Mar 26 2020 |
Transformer |
Transformer test methods part 2
Presenter Tony Wills
|
| Mar 26 2020 |
Baker Instruments |
Baker static motor testing – theoretical introduction
Presenter Mike Herring
|
| Mar 26 2020 |
Insulation
MTR105
|
DC insulation testing: effective use of guard terminal
Presenter Nick Rees
|
| Mar 25 2020 |
Transformer |
Transformer test methods part 1
Presenter Tony Wills
|
| Mar 23 2020 |
Baker Instruments |
Introduction of electrical motor dynamic analysis using the Baker EXP4000
Presenter Joseph Di Crea
|
| Mar 20 2020 |
Transformer
|
Understanding sweep frequency response analysis and best field practices
Presenter Sanket Bolar
|
| Oct 18 2019 |
Protection
|
Fundamentals of generator protection testing
Presenter David Beard
|
|
Sep 20 2019
|
|
Fundamentals of power factor testing and advantages of NBDFR
Presenter Jill Duplessis
|
| Aug 16 2019 |
Transformer |
Transformer turns ratio test: beyond the basic facts
Presenter Daniel Carreno
|
| July 19 2019 |
Protection |
Basics of distance protection
Presenter Abel Gonzalez
|
| June 21 2019 |
|
Dielectric frequency response and analysis of IEEE guide C57.161
Presenter Diego Robalino
|
| May 17th 2019 |
Battery |
Battery maintenance load testing: standards, requirements and recommended practices
Presenter Volney Naranjo
|
| Apr 19 2019 |
Cable |
PD testing in the life management of a cable
Presenter Robert Probst
|
| Mar 15 2019 |
Relay |
Directional overcurrent relaying: now and then
Presenter Mohit Sharma
|
| Feb 15 2019 |
Transformer |
Turns ratio testing: principle, operation and new measurement techniques
Presenter Aaron Tucker
|
| Jan 18 2019 |
Circuit breaker |
Primary injection testing of low voltage circuit breakers
Presenter Sanket Bolar
|
| Dec 14 2018 |
Cable |
Cable testing 101: introduction to VLF
Presenter Robert Probst
|
| Nov 16 2018 |
|
Basics of recloser testing
Presenter Abel Gonzalez
|
| Oct 19 2018 |
Transformer |
High voltage dielectric frequency response for bushing and instrument transformer diagnosis
Presenter Diego Robalino
|
| Sep 21 2018 |
Battery |
Battery impedance test: analysis and trending
Presenter Volney Naranjo
|
| Aug 17 2018 |
Insulation |
Variable frequency power factor testing for advanced insulation diagnosis
Presenter Jill Duplessis
|
| July 20 2018 |
Cable |
Understanding the time domain reflectometer (TDR) traces for cable fault location
Presenter Jason Souchak
|
| June 15 2018 |
Transformer |
Field testing of transformers for winding condition assessment
Presenter Dinesh Chhajer
|
| May 18 2018 |
|
Test data management for NERC compliance reporting
Presenter Mark Meyer
|
| Apr 20 2018 |
Power quality |
Power quality: a detailed understanding of harmonics
Presenter Sanket Bolar
|
| Mar 16 2018 |
Cable |
Fault location on oil filled cables
Presenter Robert Probst
|
| Feb 16, 2018 |
|
Introduction to sweep frequency response analysis
Presenter Robert Foster
|
| Jan 19, 2018 |
Transformer |
Transformer differential protection: challenges and solutions
Presenter Mohit Sharma
|