Set the Megger (Unit Under Calibration) to DC Voltage mode. Select the range of voltage to be generated. Press the TEST button to generate each of the required voltage setpoint values. Take note of the measured value on the multimeter.
How often does a Megger need to be calibrated?
every 12 months
It is important to have the calibration checked on the calibration checking equipment to ensure continuing accuracy and traceability to national standards. This is usually performed every 12 months. Megger as a manufacturing company provides three types of calibration certificates as can be seen below.
WHO issues calibration certificate?
CSIR-National Physical Laboratory (NPL), New Delhi is the National Metrology Institute (NMI) of India. It has the responsibility to maintain the National Standards of Measurements as per Government of India Gazette No.
What does Megger testing on the cables?
Megger is also called as a Megaohmmeter and is a device used for the testing of insulation resistance of a cable. Test performed so performed to know the insulation resistance value is known as Megger Test.
How is insulation test performed on Megger?
Procedure For Testing Insulation Resistance (IR) Step:1. Insert the measuring wires having probes, in the ports of Megger. It has two ports one is a Line and the other is a ground. Step:2. Connect the probes of Megger one to the Line I,e (R) and the other to the ground. Step:3. Repeat the process connecting the probes to the other Lines I,e (B) and then (Y).
How accurate are the readings of a Megger test?
Measuring low resistance (also known as continuity testing) is essential in identifying faulty components to prevent overheating, energy loss and malfunctions during a power surge. Thankfully, Megger has its own range of highly accurate, easy-to-operate low resistance ohmmeters that can measure resistance with resolution as fine as 0.1 micro-ohm.
Why is Megger testing done?
The main purpose behind the Megger test is so that you will be able to test for electrical leakage in wires. They are helpful in detecting issues and leakage that other devices, such as the ohm detector, might not. This is because you will actually be running current through the device while you are testing it.
