Phase Shift ferromagnetic D120
Also, this device can be called: D 120, D-120
Phase meters ferromagnetic D120 portable designed for control measurements of the power factor in the ship's three-phase networks with frequency of 50 Hz with a symmetrical load phases and symmetrical voltage.
Phase Shift D120 is an indicating instrument, the scale of which is calibrated in power factor.
Accuracy class - 1.5.
Specifications phasemeter D120:
Limits of measurement devices (values ) - 0.9 capacitive -1-0,2 ind.
Rated current - 5 A.
Nominal frequency - 50 Hz.
Power consumption series circuit - no more than 5.5 Watts.
Power consumption of a parallel circuit:
- At a voltage of 127 V - 3x0, 5 W;
- At a voltage of 220 V - 3x0, 7 W;
- At a voltage of 380 V - 3x1 watts.
The angle scale of - 90 °.
Scale length - 125 mm.
Working part - the whole range.
Settling time moving part - no more than 3 seconds.
Dimensions - 215h286h132 mm.
Weight - 4.5 kg.
Devices equipped with ferromagnetic measuring unit core and yoke, recruited from the electrical steel plates. The yoke fits the excitation coil, which creates in the flow stream by her magnetic flux. In the air gap between the core and the yoke moves the movable coil.
The principle of the device D120 is based on the interaction of the magnetic flux in the air gap created by the current flowing through coils fixed coil with a current flowing through the windings of the movable framework. As a result of this interaction occurs torque biasing the movable part of the device.
Phase meters ferromagnetic D120 are made in steel cases suitcase type, splash-proof, with a removable stainless steel lid. Steel body is magnetically shielded for the mechanism.
Ambient temperature - from -40 ° C to +50 ° C.
Relative humidity - 98%.
Operating position - horizontal.
Allowable slope device - up to 30 °.