Search Here Wednesday, 11 September 2013 Follow Us On G+ Insulation Resistance Test Or Megger Test Procedures With Circuit Diagram marinesite.blogspot.in Suka In this article we will go through Megger test first of all i want to say both insulating resistance tests and megger test are same. which is usually carries out to find the insulation of different machines windings conductor wires generator windings etc. 1.444 orang menyukai marinesite.blogspot.in. Megger Testing Instrument Megger testing instrument is a high resistance Ohmmeter with a build in generator Plugin sosial Facebook It is equipped with three connections Line Terminal (L), Earth Terminal (E) and Guard Terminal (G) Resistance is measured between the Line and Earth terminals The “Guard” terminal is provided for special testing situations where one resistance must be isolated from another. Popular Posts The generator can be hand-cranked or line-operated to develop a high DC voltage which causes a small current through and over surfaces of the insulation being tested What is Tappet Clearance? How to check And Adjust tapper clearance? Which is measured by an ohm meter having an indicator scale Simple Explanation Of Crankshaft Deflections, Measurement Procedure, Readings,Curves Importance Of Insulation Resistance Test Or Megger Test An insulation test is carried out to test the integrity of the insulation between conductors. Which help to find the short circuit problems in the circuit How Does Brushless Alternator Works? (With Diagram) It also serves as the best guide to indicate the health of the equipment Procedure To tests the Insulation Test the megger before use, whether it gives INFINITY value when not connected, and ZERO when the two terminals are connected together and the handle is rotated. To do the test you ensure the cable is disconnected from any devices (megger normally work on 500v, 1000v testers for higher voltage testing). Make sure that no eddy current in the device by earthing it.(very important) What is Gravity Disc Of Purifier? Selection and fuctions of Purifier Gravity Disc Specific Fuel Oil Consumption Definition,Formula And Calculation Instrument should be in normal working temperature because resistance is related to temperature. What is Governor Droop In electric generators? Why Governor Droop Required? Ensure both ends of the cables are separated from each other (connect one end in terminal strip if necessary). SOPEP - Ship Oil Pollution Emergency Plan and List of Equipment Requirement. Now connect the megger terminals to the conductors which has to be meassured Then hand crank the generator and a high DC voltage generated which causes a small current through and over surfaces of the insulation being tested. Difference Between Safety Valve And Relief Valve Insulation Resistance Test Or Megger Test Procedures With Circuit Diagram If the Reading shows Infinity means the conductors having good insulation. Here it shows a megger circuit diagram Emergency Fire Pump Regulation Blog Archive ► 2014 (32) ▼ 2013 (106) ► December (13) ► November (5) ► October (20) Image credits:tpub.com,electrical-engineering-portal.com ▼ September (34) What is Bow Thruster and how its works? List Out Lube Oil Properties Bijoy About The Author: He is a marine engineer sailing with ESM.He loves to share his views and opinion regarding marine exams and coordinate Marinesite. Apart from this he is having keen interest on blogging. You can catch him on Google+ List Of Boiler Mountings What is Governor Droop In electric generators? Why... Fuel Injector For Marine Engines Variable Injection Timing (VIT) In Marine Diesel E... 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Newer Post Subscribe to: Post Comments (Atom) Older Post Home ► August (21) ► July (5) ► June (3) ► May (2) ► March (1) ► January (2) ► 2012 (32) Help others rakesh in reeds its saying... at some rudder angle there will be no torque on the stock for balanced type... this may be the reason bt i cudnt understand it.... MARINE SITE: Discussion orals class IV · 3 days ago rakesh minimum torque is required for balanced one in terms of toque unbalanced having more toque thn semi banalnced minimum is balanced one... MARINE SITE: Discussion orals class IV · 3 days ago Vineeth M bcz balanced rudder require more torque to move compared to semi balanced rudder. MARINE SITE: Discussion orals class psyc00 as reg 34...... en route should pass from odmc not with in special area 50 nm away frm nearest l MARINE SITE: Discussion orals class IV · 5 days ago Rupam Kanathey what r the AC compressor parameters MARINE SITE: Discussion orals class IV · 1 week ago rakesh most of the ships are using balanced rudder not semi balanced i thk... if m wrong plz correct me.. MARINE SITE: Discussion orals class IV · 3 weeks ago santosh why we r not using a balanced type rudder.....why semi balance is in use? MARINE SITE: Discussion orals class IV · 3 weeks ago rakesh .An odd number of pistons have smaller output pressure fluctuations than an even number of pistons ..... MARINE SITE: Discussion orals class IV · 3 weeks ago Murugappan Chandrasekaran WHY SWASH PLATE PUMP HAS ODD NUMBER OF PISTONS WHY NOT EVEN NUMBERS OF PISTONS? MARINE SITE: Discussion orals class IV · 3 weeks ago rakesh The formula used to calculate the Temperature Corrected Density is: = (Density of Fuel Oil @ 15⁰C) x [1- {(T-15) x 0.00064}] Where: T = temperature of oil in bunker tanks in degree celcius, 0.00064... MARINE SITE: Discussion orals class IV · 3 weeks ago Total Pageviews Like to Share your knowledge contact us 2 4 9 7 2 6 Gladly inviting any suggestion, quires and question answers. mail to marinesite.blogspot@gmail.com. Powered by Blogger.