Power Drive Systems DUNLITE UVR100 Manual

Automatic voltage regulator

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James Hamilton Electrical Pty Ltd (Inc in Qld) A.C.N. 010 848 389 trading as

Power Drive Systems

Generator Control Specialists

48A Ainsdale Street

Telephone: 0500 800 225

P.O. Box 30

West Chermside, Qld 4032

Facsimile: 3350 1654

Grange, Qld 4051

Australia

Mobile: 0427 22 00 18

Australia

email: info@powersystems.com.au

www.powersystems.com.au

DUNLITE UVR100

AUTOMATIC VOLTAGE REGULATOR

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Page 1 James Hamilton Electrical Pty Ltd (Inc in Qld) A.C.N. 010 848 389 trading as Power Drive Systems Generator Control Specialists 48A Ainsdale Street Telephone: 0500 800 225 P.O. Box 30 West Chermside, Qld 4032 Facsimile: 3350 1654 Grange, Qld 4051...
Page 2 POWER DRIVE SYSTEMS DUNLITE UVR100 AUTOMATIC VOLTAGE REGULATOR GENERAL This regulator is a solid-state device primarily designed to give precise and stable voltage regulation of an alternator under adverse operating conditions. The regulator is suitable for operation on either single or three phase 240/415 or 120/208 volt brushless alternators.
Page 3 POWER DRIVE SYSTEMS DUNLITE UVR100 AUTOMATIC VOLTAGE REGULATOR NOTE When the regulator is fitted within a separate control cubicle, the terminals U, V, W and N will have been factory connected to AC supply points within the cubicle. Similarly, the voltage adjustment terminals PP may have been connected to a separate potentiometer - normally these terminals will be bridged, as will also the droop circuit terminals D1, D2.
Page 4 POWER DRIVE SYSTEMS DUNLITE UVR100 AUTOMATIC VOLTAGE REGULATOR CONTROLS There are three standard controls on each regulator. They are - Voltage Adjust This potentiometer varies the internal voltage reference of the regulator, hence varying the alternator output voltage over a range of plus or minus 10%. An external 5K potentiometer may be added to terminals PP for remote voltage adjustment.
Page 5 POWER DRIVE SYSTEMS DUNLITE UVR100 AUTOMATIC VOLTAGE REGULATOR CONTROLS (cont' d) SCOOP (cont'd) SCOOP Adjustment As previously stated, the point at which this function operates is pre-set at the factory so as to limit. to a safe maximum value, the voltage applied to the exciter field. This voltage varies according to the particular size and type of alternator and should not normally require adjustment.
Page 6 POWER DRIVE SYSTEMS DUNLITE UVR100 AUTOMATIC VOLTAGE REGULATOR SCOOP REMOTE INDICATION S+ S- (Later models) S+ and S- terminal s are used for remote indication of the SCOOP operation. The output is an optically coupled silicon NPN phototransistor. The ouput is connected via the alternator terminal box to a Series 2000 control which has the necessary interface.
Page 7 POWER DRIVE SYSTEMS DUNLITE UVR100 AUTOMATIC VOLTAGE REGULATOR REMOTE VOLTAGE CONTROL Terminals PP The UVR100 regulator has remote voltage facilities where the voltage range can be varied up to 10%. Remove bridge from PP and fit an external 5K 2W potentiometer. Turn RV1 voltage adjusting potentiometer on the regulator fully clockwise so as to have full voltage range adjustment on the external potentiometer.
Page 8 POWER DRIVE SYSTEMS DUNLITE UVR100 AUTOMATIC VOLTAGE REGULATOR DROOP FACILITY Terminals D1 D2 The UVR100 regulator has quadrature droop facilities for parallel operation. The addition of a drooping kit will make the UVR100 suitable for parallel operation. Quadrature droop allows load sharing of reactive load (kVAR) only, since kW load sharing is a function of the prime mover.
Page 9 POWER DRIVE SYSTEMS DUNLITE UVR100 AUTOMATIC VOLTAGE REGULATOR OPERATING UNDER EXTREME ADVERSE CONDITIONS For operation under extreme adverse conditions ( le. lightning strikes etc.) the regulator may be used without additions, provided the power terminal (B) is connected to a centre tap of the alternator (ie. on 240 volt machine, connect terminal B to a 120 volt tap).
Page 10 POWER DRIVE SYSTEMS DUNLITE UVR100 AUTOMATIC VOLTAGE REGULATOR FAULT LOCATION If the generating set runs at the correct speed, but will not generate, check as follows - Shut down the set. Check all wiring between the alternator, distribution board and load.
Page 11 POWER DRIVE SYSTEMS DUNLITE UVR100 AUTOMATIC VOLTAGE REGULATOR UVR100 REGULATOR FAULT FINDING CHART Instrument: Multimeter 20K Sensitivity. Ref: Drg. No. 0212-J-03 Fault Diagnose High Voltage (Danger – run for periods of 1-2 mins. only to avoid 300V AC excess field current and disconnect all load) Check correct transformer tap to suit alternator sensing for three phase or single phase operation.
Page 12 POWER DRIVE SYSTEMS DUNLITE UVR100 AUTOMATIC VOLTAGE REGULATOR Mains Check of the UVR100 Connect the UVR100 for 240 volt single phase operation. Connect a 40 watt globe between F+ F-. Bridge out terminals D1,D2 and PP separately. Set voltage control potentiometer RV1 fully anti-clockwise.