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N348

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Recording wattmeter N348, N348 varmetr recording (N 348, N-348)
 
Recording wattmeter N348, N348 varmetr recorder designed to measure and record the active and reactive power in three-phase AC 50Hz without neutral conductor with non-uniform load phases.
 
Technical characteristics of the devices wattmeters recorders N348, N348 varmetry recorders:
 
Devices are used at an ambient temperature of 5 º C to 50 º C and relative humidity up to 80%;
In terms of resistance to mechanical impact devices are common.
Accuracy class - 1.5.
Settling time of mobile devices recording wattmeter N348, N348 varmetr recording does not exceed 2c.
The speed of the chart - 20 mm / h and 60mm / h and 180mm / h and 600mm / h, 1800 mm / h and 5400mm / h.
Devices are available for immediate inclusion in the rated current of 5A and Voltage 127V, 220V, 380V, for inclusion in current transformers with secondary current 1A or 5A and voltage measuring transformers with secondary voltages 100V.
Changing the readings recording wattmeter N348, N348 varmetr recording:
- Rejecting an ambient temperature of 10 º C (class H) is ± 1,2%;
- Under the influence of an external magnetic field of 400 A / m - is ± 1%;
- When installing the product on a ferromagnetic shield - does not exceed ± 0,5%.
Own use a daisy chain of devices recording wattmeter N348, N348 varmetr recording to be included in current transformers, the rated current and frequency does not exceed 50 ° q ∙ A 10V.
Own use parallel circuit devices to be included in measuring voltage transformers, at nominal voltage and frequency does not exceed 50 ° q ∙ A 10V.
Overall dimensions of autographic instruments wattmeter N348, N348 varmetr recording - 160h160h310 mm.
Weight - 6.5 kg.
The device consists of basic blocks: measuring equipment, tape drive, a synchronous motor with gearbox.
All elements of the instrument recording wattmeter N348, N348 varmetr recorder placed in a metal box with a hinged glass lid.

Photos N348

N348 (H348) front view (scale).
N348 (H348) front view (scale).
N348 (H348) side view (casing depth).
N348 (H348) side view (casing depth).
N348 (H348) rear view (connection).
N348 (H348) rear view (connection).


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