Watthour meter kW · h (commonly known as the 6 th degree on the numerical representation of the use of electrical power 1kw power consumed by work 1h 1kw.h = 3.6 × 10's)
Reactive power meter kvar · h
Word round counters and window Air circuit breaker (LCD window):
Different colors and decimal integer bit in the middle of the decimal point; each word wheel has a multiplication factor (no decimal point) LCD multi-function table bit integer and two decimal places
Accuracy:
Relative error, with placed Circled numbers represent
Calibration current and rated maximum current:
Rated current: indicated in the above table is electri calmete calculated as the base load current value: I b. Usually calibrated current meter shall be 0.005 times the starting current. A calibrated current meter is larger, the smaller the error when electricity metering.
The maximum rated current: meter long term work, errors and temperature to fully meet the requirements of the maximum current value: Imax Rated voltage:
Single-phase energy meter mark: 220V
There are three three-phase meter mark law:
. a direct access to the three-phase three-wire: 3 × 380V
. b direct access to three-phase current transformer four-wire: 3 × 380 / 220V
Proportional relationship between the number of wheel revolutions or power and energy meter records the number of pulses:: meter constant r / kWh; imp / kWh
Rated frequency: 50Hz
没有评论:
发表评论