I did them with a 1,000 volt megger .
nai janta
Usually a megaohmeter (or megger) is used to test high current feeder wires for ground faults before they are landed on a transformer.
Megger Group Limited was created in 1889.
It is the terminal on the megger that the ground cable connect to when testing a device to ground.
I did them with a 1,000 volt megger .
You can see if the capacitor charges and discharges with an ohmmeter. You can check the value of the capacitor if the multimeter has the facility. With an ESR meter you can establish the value of the capacitor while in circuit.
You need a Megger tester. With one lead attached to the winding and the other attached to the motor housing, the Megger sends a high voltage through the winding. The Megger reads the resistance, letting you know if there is a short to ground.
By testing capacitor tolerance
The value of insulation resistance varies according to the type of CT and manufacturer. It is best to check with the manufacturer for acceptable values. The word 'Megger' is a registered trademark of Megger Limited. Megger Limited's product range includes insulation testers, relay testers, battery testers and many other electrical test and measurement products. Tony Wills, Applications Engineer, Megger Ltd.
Megger the body and the earth point. It should be zero
nai janta
Check to see if the capacitor is good. It is usually located inside the outdoor unit. It could be that the capacitor is bad and needs replacing. The outdoor fan will still run if you have a dual capacitor. One sure sign of a blown capacitor is that the top of the capacitor is bowed outward. If you have a multimeter you could also check the amp draw on the condensing unit. I would look at the capacitor first though
By means of Megger Vidar or Vanguad VBT Series
It is measurement done by megger tool of measurement .
Usually a megaohmeter (or megger) is used to test high current feeder wires for ground faults before they are landed on a transformer.
While using megger we only have to see whether resistance breaksdown at the upper value mentioned. Since megger generates high voltage we can check whether breakdown takes place or not.Megger has a range from o to infinity.So it is not possible to find accurate resistance,hence it is used as an insulation tester