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Wattmeter D349, D349 varmeter (D 349, D-349)
Wattmeter D349, D349 varmeter designed to measure active and reactive power in three-phase three-wire ac mains frequency 50Hz.
Dimensions - 160h160h76mm;
Accuracy class - 2.5.
Technical characteristics of the devices wattmeters D349, D349 varmeter:
Rated voltage of the direct inclusion - 127V, 220V and 380V;
Rated voltage when the voltage across the measuring transformer secondary winding with 100V and 127V - 300V, 660V, 3000V, 6000V, 10000V, 13800V, 15750V, 18000V, 20000V, 35000V, 5.10 4, 11.10 4, 22.10 4, 3.10 4;
Rated power (final range value) device wattmeter D349, D349 in varmeter vatah for wattmeters and Vary for varmeter set as the product of rated current in amperes, rated supply voltage, rated power factor and the factor with the resulting product rounded to the nearest appropriate P series:
P = a * 10 n,
where a - one of the numbers 1, 1.2, 1.5, 2, 2.5, 3, 4, 5, 6, 8, n - any positive number, but not less than 2;
Rated active power factor wattmeter unit D349, D349 varmeter cosφ = 1 and reactive power sinφ = 1;
Rated current - 1A-4000A;
Range value wattmeter unit D349, D349 varmeter - 1-800kW (quarter);
Basic error - no more than ± 2,5%;
Changing the power meter readings D349, D349 varmeter caused by ambient temperature deviation from normal (within the operating temperature range) for every 10 K does not exceed ± 1,2% of the measuring range, under the influence of an external magnetic field of 400 A / m - not more than ± 5 0% when the instrument panel on a ferromagnetic 3mm thick - less than ± 1,0%; instrument at a deviation from the vertical position at 45 º - less than ± 2,5%;
Dimensions - 160h160h76mm;
Unit weight wattmeter D349, D349 varmeter - 1.2 kg;
Time to failure - at least 25,000 hours;
The manufacturer guarantees that the quality of the instrument wattmeter D349, D349 varmeter technical requirements specifications provided the customer terms and conditions of storage, transportation, installation, operation, and its specified operational documentation.