MVF-3C
Purpose
For application in three-phase networks with the unstable tension of separate phases in need of food of single-phase systems with the set tension parameters.
Provides connection of single-phase consumers to the phase having tension within the admission established by the user. Has the digital display for indication of a condition of the device. Installation of parameters of work is made on the digital display.
Construction
– The MVF-3C module is executed in the plastic case for installation on a DIN lath.
– On the forward panel of the module there is a digital indicator and buttons for management of working hours of registrar.
– In the top and lower part of the block there are screw klemmnik for connection of the block.
For application in three-phase networks with the unstable tension of separate phases in need of food of single-phase systems with the set tension parameters.
Provides connection of single-phase consumers to the phase having tension within the admission established by the user. Has the digital display for indication of a condition of the device. Installation of parameters of work is made on the digital display.
Construction
– The MVF-3C module is executed in the plastic case for installation on a DIN lath.
– On the forward panel of the module there is a digital indicator and buttons for management of working hours of registrar.
– In the top and lower part of the block there are screw klemmnik for connection of the block.
Technical characteristics
* value of the maximum tension of inclusion is 3 V lower than the established value of the maximum tension of switching off.
Pict.1.
Scheme of connection of MVF-3Ts to powerful loading. It is necessary to include a spark extinguishing chain parallel to the actuator coil R – 51 Ohm 1vt, With – 0,1 мкФ 630 V.
Attention!
Connection of power-supply circuits of coils of contactors and alarm chains (L1, L2, L3, N) to a power network to make separate wires.
|
Parameter |
Value |
| Rated working voltage | 220/380 V; 50 Hz |
|
Range of parameter setting of the minimum phase tension «U» turn off |
150-210 V |
|
Диапазон установки значения минимального фазного напряжения «U» turn on |
155-215 V |
|
Temporary delay of shutdown of the chosen phase at undervoltage below the established value min |
0,1 с |
| Временная задержка отключения выбранной фазы при снижении напряжения ниже установленного значения max | 10 s |
|
Range of parameter setting of the maximum phase tension of switching off«U»* min |
230 V |
|
Range of parameter setting of the maximum phase tension of switching off «U»* max |
270 V |
| Shutdown of the chosen phase at increase of tension is more than established value, no more | 0,02 s |
|
Temporary delay of turning on of the following relay when switching on other phase min |
0,1 s |
|
Temporary delay of turning on of the following relay when switching on other phase max |
10 s |
| Temporary delay of return on the restored phase minimum | 0,02 min |
| Temporary delay of return on the restored phase max | 30 min. or irrevocably |
| The maximum switched current of contact of the internal relay (the AC1 mode of 240 V) | 16 А |
| Overall dimensions of the block | 71 х 90 х 60 mm |
| Weight, no more | 0,35 kg |
Pict.1.
Scheme of connection of MVF-3Ts to powerful loading. It is necessary to include a spark extinguishing chain parallel to the actuator coil R – 51 Ohm 1vt, With – 0,1 мкФ 630 V.Attention!
Connection of power-supply circuits of coils of contactors and alarm chains (L1, L2, L3, N) to a power network to make separate wires.