Electrical measuring instruments >> phase meters

D578

19 999 RUB
9 600 UAH
available:
13 pieces

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Phase meter D578 (D 578, D-578)
 
D578 phase meter is designed to detect single-phase AC networks 50Hz and 60Hz frequency phase angle between the main harmonic components of current and voltage values ​​of cosφ.
Measurement range of the angle - 0-90-180-270-360.
Measuring range in the values ​​of cosφ - +1 ÷ 0 ÷ -1.
 
Technical characteristics of the devices phasemeter D578:
 
Four-quadrant phase meter D578 electrodynamic system is designed to detect single-phase AC networks 50Hz and 60 Hz phase angle between the main harmonic components of current and voltage values:
 
 
where - Active power; - Reactive power;
U n, I n - root mean square voltage and current n-th harmonics; φ n - the phase angle between the n-th harmonic current and voltage.
When the ratio of harmonics in the current and voltage curves of less than 1% phase meter D578, retaining the established class of accuracy, measure the power factor:
 
 
where @.
The instrument uses phase meter D578 at an ambient temperature of 10 º C to 35 ° C and relative humidity up to 80% (at 30 ° C).
Parameters of the devices listed in Table 1.
 
Table 1 phase meter D578
 
Modification of the instrument
The normal frequency in Hz
Rated voltage, V
Rated current, A
D578 / 1
50Hz
100V, 127V, 220V
5A, 10A
D578 / 2
60Hz
100V, 220V, 380V
5A, 10A
 
The range of phase angle measurement device D578 phase meter in electrical degrees 0-90-180-270-360.
Measuring range in the values ​​of cosφ - +1 ÷ 0 ÷ -1.
Response time phase meter unit D578 - no more than 4s.
The power consumed by the serial device chain at rated current and normal frequency does not exceed 5 V ∙ A, a parallel circuit - does not exceed 8B ∙ A.
The moving part of the device attached to the D578 phase meter cores and thrust.
Reading device - hand-type.
Scale - 180-degree irregular.
The length scale of the instrument D578 phase meter, calibrated in cosφ, - 240mm.
Dimensions - 230x280x140mm.
Weight of the device phase meter D578 - 7kg.

Photos: D578

D578 phase meter image.
D578 phase meter image.
D5781 phase meter image.
D5781 phase meter image.
D5782 phase meter image.
D5782 phase meter image.
D578 panel view.
D578 panel view.
D578 side view (terminals, switches).
D578 side view  (terminals, switches).
D578 side view.
D578 side view.
D578 side view.
D578 side view.
D578 bottom view.
D578 bottom view.


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