Original R731 Three Phase Sensing Module
|FOB Price:||US $500-1,000 / Piece|
|Min. Order:||1 Piece|
|Min. Order||FOB Price|
|1 Piece||US $500-1,000/ Piece|
|Payment Terms:||L/C, T/T, Western Union, Paypal, Money Gram|
- Model NO.: R731
- Usage: Common Units
Method: Water Cooling
Type: Diesel Generator
- Trademark: Leroy sommer
- Specification: original
of Use: Land Use
- Output Type: AC Three Phase
- Delivery Time: 3days
- Transport Package: Strong Carton Box
- Origin: UK
1 - DESCRIPTION
The R 731 optional three phase sensing modul is designed to
be used with the R438, R448, R449 single phase sensing
2 - CHARACTERISTICS
2.1 - voltage sensing
The voltage sensing is done with three 2VA single phase
Input voltage :
- High voltage tap (400V) :
340V-5% to 480V=5%
- Medium voltage tap (230V) :
200V-5% to 240V+5%
- Low voltage tap (110V) :
90V-5% to 140V+5%
Internal voltage rheostat :
The voltage can be adjusted using the internal rheostat P1.
This rheostat is designed to provide +/-5% adjustment from
any voltage within the above voltage ranges.
Remote voltage rheostat :
If required, remove the ST10 jumper in order to connect a
remote voltage rheostat.
A 470 Ohms - 3W rheostat can be used for a +/-5% voltage
adjustment range or a 1k Ohms - 3W rheostat for a +/-10%
An ST1 jumper was included on older R731 modules to
increase the voltage adjustment range but was discontinued.
2.2 - voltage droop
Current sensing : C.T. for // operation
Location : standard line 1 (U), option line 2 (V).
- Maximum continuous current : 1.3A
- Nominal current : 1A
- Maximum current for 10s : 10A
Voltage droop rheostat :
The P2 rheostat on the R731 can be used to adjust the
voltage droop. It is designed to provide a minimum voltage
droop of 8% at 0 power factor and 1A from the paralleling CT.
3 - INSTALLATION
The R731 module is designed to be installed vertically next to
the voltage regulator.
4 - ELECTRICAL SCHEMATICS
2 typical wiring schematics are provided :
- with the CT for parallel operation on the phase U
- with the CT for parallel operation on the phase V