John Robertson wrote:

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"Otherwise" would be non-resistive loads - which would be reactive (capacitance) loads, or inductive (Motors and such) loads.

From another website, put simply:

When electricity flows through a circuit, there are points on the circuit, called loads, where energy is drawn away. Loads, in essence, are objects that use electricity--such as light bulbs. There are a variety of classification systems, but one way you can divide loads is into resistive, capacative, inductive or a combination of these types.

So:

A Variac "sees" a resistive load as a constant, whereas reactive and inductive loads will vary, so the amount of current the variac "sees" may be greater than the constant load at onset, shutdown, or when the load varies.. Hence the derating.


** ROTFL


If Mr. Wieck is incorrect why not point out his errors instead of simply
insulting him?


** What he posted is way beyond mere correction.

The guy is a deranged old **** with a vile attitude.

He only ever responds to correction with malicious jibes at me.


We all make mistakes,

** Some folk make nothing but mistakes.

Known usually as "bull**** artists".

Weaky is a monstrous example.

Be fighting with him for almost 20 years.




Peter Wieck


** Wot a know noting, f...

Let's get personal, eh?



** I want the asshole gone - ASAP.

His bad advice ruins other's attempts to post good advice.



Melrose Park, PA

** Must stink up the whole neighbourhood.


...... Phil


Sheesh...



** You are one grade A, narcissistic dope - pal.


...... Phil