People working out mandatory testing of measuring instruments measuring instruments catalog

AC meter (meter) is widely used for trade settlement measuring instrument, is a national compulsory verification work out people directory measuring instruments measuring instruments, in the event of  electric transformer , it will bring serious consequences to the enterprise. In actual test work, the measurement result depends on the availability of  power transformers  the uncertainty child. In order to improve the reliability of the test results, test results deal with the uncertainty assessment. Uncertainty theory using three-phase AC power meter (meter) measurement errors are Uncertainty.