Related Read: Construction and Operation of Megger Explained . The construction of the Megger is shown in the figure below. The Megger has one current coil and the two voltage coils Vand V2. The voltage coil Vis passed over the magnet connected to the generator. When the pointer of the PMMC instrument deflects towards infinity, it means that the voltage coil remains in the weak .
Selection Switches :- Switches use to select electrical parameters ranges.
Indicators :- To indicates various parameters status i.
For Example Power, hol Warning, etc. Note: - Above construction is not similar for every megger , it difference appears manufacture to manufacture but basic construction and operation . The principle of ratiometer ohmmeters is particularly adapted to application in portable instruments measuring insulation resistance. This principle forms the basis of insulation testing instrument known as . MEGGER is suitable to test high resistance Mega ohm like motor winding insulation resistance , wiring installation insulation resistance, MEGGER generates hi.
The megger is the most popular type of . MEGGER Megger is the portable insulation tester. It is used to remove very high resistance of the order of mega ohms. The instrument has IPrated protection against the ingress of dust and water, making it extremely robust and reliable. How significant is insulation resistance testing?
Since of electrical maintenance and testing involves evaluating insulation integrity, the answer is very important. An aging deteriorates its performance. Harsh installation environments, especially . How is IR testing done, in view of the fact that at least of electrical maintenance and testing involves evaluating insulation integrity? This is also useful to RTD maintenance while the plant is in operation.
Mica is placed in between the steel sheath and resistance wire for better electrical insulation. Due less strain in resistance wire, it should be carefully wound over mica sheet. Industrial Resistance Temperature . TESTING ELECTRICAL APPLIANCES.
No comments:
Post a Comment
Note: only a member of this blog may post a comment.