What are joules of energy?

joule, unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of one newton acting through one metre. In electrical terms, the joule equals one watt-second—i.e., the energy released in one second by a current of one ampere through a resistance of one ohm.

What unit is the joule equivalent to?

one Newton
1 Joule (J) is the MKS unit of energy, equal to the force of one Newton acting through one meter. 1 Watt is the power from a current of 1 Ampere flowing through 1 Volt. 1 kilowatt is a thousand Watts.

How many joules are in a lightning bolt?

one billion
With an average bolt of lightning striking from cloud to ground containing roughly one billion (1,000,000,000) joules of energy, that is a lot of power in every lightning bolt!

How many megagram is equal to 1 kg?

How many megagram in 1 kg? The answer is 0.001. We assume you are converting between megagram and kilogram. You can view more details on each measurement unit: megagram or kg. The SI base unit for mass is the kilogram. 1 megagram is equal to 1000 kilogram.

What kind of test is megohm or Megger?

The simplest of tests used to detect breakdowns in wire insulation is a Megohm (or Megger) Test, also known as an Insulation Resistance (IR) test. During Megohm Testing, the test equipment applies a high direct current (DC) voltage, usually 500 to 1500 VDC, between a conductor and one or several other conductors…

What kind of voltage is used to test Megger insulation?

The voltages used in Megger insulation testing can range from 50 V to 5000 V. By inducing a high voltage into the windings of a motor or transformer, you will be able to detect if there is insulation deterioration.

When to use the scale of the Megger?

As in the case of a low resistance ohmmeter, the scale of the megger indicates infinity (∞) when measuring an open-circuit, zero on a short-circuit, and half-scale when the unknown resistance equals a standard resistor inside the megohmmeter.