Deif Multi-line 2 General Manuallines For Commissioning
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Deif Multi-line 2 General Manuallines For Commissioning

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General Guidelines for
Commissioning
Multi-line 2 – version 2
4189340317C
• Settings check
• Governor check
• AVR check
• Protections check
• Adjustment
• Troubleshooting
DEIF A/S, Frisenborgvej 33
DK-7800 Skive, Denmark
Tel.: +45 9614 9614, Fax: +45 9614 9615
E-mail: deif@deif.com, URL: www.deif.com

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Summary of Contents for Deif Multi-line 2

  • Page 1 General Guidelines for Commissioning Multi-line 2 – version 2 4189340317C • Settings check • Governor check • AVR check • Protections check • Adjustment • Troubleshooting DEIF A/S, Frisenborgvej 33 Tel.: +45 9614 9614, Fax: +45 9614 9615 DK-7800 Skive, Denmark...

  • Page 2: Table Of Contents

    ..................4 EGAL INFORMATION AND RESPONSIBILITY ..................4 LECTROSTATIC DISCHARGE AWARENESS ..........................4 AFETY ISSUES ..........................4 EFINITIONS COMMISSIONING OF THE MULTI-LINE 2 ................5 ..........................5 TEP BY STEP SETTINGS CHECK........................ 6 ............................ 6 ETTINGS ......................... 6 OMINAL VALUES .........................

  • Page 3: About This Document

    1. About this document General purpose This document includes general guidelines for commissioning of DEIF’s multi-line 2 units. It mainly includes instructions for settings, governor, AVR and protections check and unit adjustment. The general purpose of the document is to supply general guidelines to be used in the commissioning of the multi-line 2.

  • Page 4: Warnings And Legal Information

    2. Warnings and legal information Legal information and responsibility DEIF takes no responsibility for installation or operation of the generator set. If there is any doubt about how to install or operate the generator set controlled by the unit, the company responsible for the installation or the operation of the set must be contacted.

  • Page 5: Commissioning Of The Multi-Line 2

    Multi-line 2 General Guidelines for Commissioning 3. Commissioning of the multi-line 2 Step by step The illustration below indicates the overall steps to be followed in order to carry out a successful commissioning of the multi-line 2 unit. Step 1...

  • Page 6: Settings Check

    For navigating in the menus see the Operator’s Manual. Nominal values The nominal values of the multi-line 2 are adjusted in the system setup menu. In the PC utility software it is presented as illustrated on the screen dump above. The correct values are supplied by the switchboard manufacturer.

  • Page 7: Alarm Settings

    In the PC utility software it is presented as illustrated on the screen dump above or similar. The screen dump includes the protection alarms of the standard multi-line 2. The number of alarms depends on the options selection of the individual unit. The actual alarm parameters are adjusted according to customer requirements and application requirements.

  • Page 8: Speed Controller Settings

    Speed controller settings The multi-line 2 speed controller settings are adjusted in the control setup menu. The screen dump below illustrates the controller settings related to the speed governor. As an initial setting before the first start up, the K...

  • Page 9: Voltage Controller Settings

    Multi-line 2 General Guidelines for Commissioning Voltage controller settings The voltage controller settings are adjusted in the control setup menu. The screen dump above illustrates the controller settings of the voltage and var controller. As an initial setting before the first start up, the K...

  • Page 10: Governor Check

    (150Ω gives 3V DC at 20mA, etc). Given the fact that especially the governors are sensitive to the external circuit impedance, it is essential to carry out the initial setting of speed governor while the multi-line 2 is connected and the control function disabled.

  • Page 11: Speed Droop

    The speed governor must have a speed droop of 3-4% (speed dropping 3-4% from no load to full load, when the multi-line 2 is not in control). In order to ensure equal load sharing on parallel running machines, all governors must have the same droop setting.
  • Page 12 Multi-line 2 General Guidelines for Commissioning Direct digital signals Analogue interfacing Direct analogue signal External potmeter For additional information about interfaces, see Interfacing DEIF Equipment to Governors and AVRs available on www.deif.com. DEIF A/S Page 12 of 19...

  • Page 13: Avr Check

    (150Ω gives 3V DC at 20mA, etc). Given the fact that especially the AVRs are sensitive to the external circuit impedance, it is essential to carry out the initial setting of the AVR while the multi-line 2 is connected and the control function disabled.

  • Page 14: Voltage Droop

    This means that the generator AVR must have a voltage droop of 3-4% (voltage dropping 3-4% from no load to full reactive load when the multi-line 2 has no control). In order to ensure equal var sharing on parallel running generators, all generators must have the same voltage droop setting.

  • Page 15: Protections Check

    Multi-line 2 General Guidelines for Commissioning 7. Protections check As a part of the commissioning, the protections should be checked. The following points must be considered for each alarm: • Alarm set point. • Alarm delay. • Relay output. •...

  • Page 16: Adjustment

    Adjusting PI controller Before the PI controllers of the multi-line 2 are tuned in, the values of the K and K of all controllers must be decreased to a low value.

  • Page 17: Adjustment Hints For Agc

    Multi-line 2 General Guidelines for Commissioning Adjustment hints for AGC This concerns the AGC only! In many cases it is difficult to tune in the controller using load jumps (no load bank available). When this is the situation, the manual incr/decr inputs can be used in semi-auto mode. The inputs are digital inputs that must be configured in the utility software.

  • Page 18: Resulting Speed/Voltage Curve Upon Load Change

    Multi-line 2 General Guidelines for Commissioning Resulting speed/voltage curve upon load change Testing is easily done by using (if possible) a load bank applying ‘jumps’ in the generator load, thus testing the speed/voltage control. The optimum result is indicated by this curve: As indicated, 2-3 ‘overshoots’...

  • Page 19: Troubleshooting

    Multi-line 2 General Guidelines for Commissioning 9. Troubleshooting The troubleshooting table can be used for the uni-line and the multi-line 2 products. Problem indication Problem cause Remedy Load sharing or parallel with mains power No speed droop on generators. Apply 3-4% speed drop on control unstable.

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