Fast Spinning Meter
Fast Spinning Meter
For whatever it is worth, the utility can come out and test the meter for accuracy. A meter disk assuming it is a mechanical meter should not spin with main breaker off and no taps before the main, IE Fire alarms. There can be a meter creep which is considered 1 rotation in under 10 minutes, creep is acceptable. Someone mentioned clocking the meter. On the face of the meter there is a kh. Clock the disk spinning, since it is probably very slow, go one rotation. The calculation would be the kh times number of rotations divided by number of seconds, (assuming this is a simple single phase, non ct rated meter). For example, 1 rotation on a 3.6 kh meter taking 25 seconds. This would be a load of 144 watts. Many times someone has played with the f or s screws, these are there for the meter tech to "dial " the meter into 100% accuracy when tested if it is off by les then 2%. I have had weel pumps that were unknown to be in home run endlessly, have had uf cable leak to ground, have had tampering IE trying to use magnets which will afect the magnetism of the meter and thus affect braking ability of the meter magnetism, have had unknown loads such as heat tape where the thermostat went bad. Rule out the meter first by having utiltiy test it, then trace out the circuit with the load, Happy Hunting