Electrical measuring instruments >> analog panel meters >> wattmeters and varmeter >> power meter, varmeter three-phase
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D164 three-phase wattmeter Also, this device can be called: D-164, D 164. D164 three-phase watt-hour meter is a high-impact shield splash-proof device ferrodinamicheskoy direct-reading system. Power meters are designed to measure active power in three-phase alternating current at 50 Hz. Dimensions - 160×160 mm. Accuracy class - 2,5. Shock, vibration, resistant to shaking. Wattmeters D164 characterized by high mechanical strength and are used for installation on ships and mobile installations. Specifications D164: Rated current (including a current transformer with a secondary current of 5 A) - 5 A to 6 kA. Measured power (depending on the rated voltage) - 127 V (including myself) - from 1 kW to 1200 kW; - 220 V (including myself) - from 2 kW to 2500 kW; - 380 V (including voltage transformer through 380/127 V) - from 3 kW to 4000 kW. Measurement range wattmeter to the table:
Change readings caused by changes in ambient temperature of 20±5° C for every 10° C - no more than ±1%. Changing testimony from the influence of external magnetic fields - no more than ± 1% of full-scale. Scale length - 190 mm. Grating angle - 230 °. Working part of the scale - 100%. Operating position vatmetra D164 - vertical. Housing material - plastic base. Casing material - steel. Casing material - alloy AL2. Settling time arrow - no more than 3 seconds. Insulation resistance: - At an ambient temperature of 20 ± 5° C and relative humidity up to 80% - not less than 50 MOhm; - At an ambient temperature of 20 ± 5 ° C and a relative humidity of 95 ± 3% - not less than 2 MOhm. Weight wattmeter D164 - 3,8 kg. Operating conditions D164: The ambient air temperature - from -40° C to +60° C. Relative humidity - 98%. Stand the test within 2 hours: - Shaking - acceleration of 70 m/s 2, the frequency of strikes from 80 to 120 per minute; - Vibration - 20 Hz, double amplitude of 1,4 mm. Wattmeter D164 stands the test on the type copra six strokes of the maximum intensity. Photos D164
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