Nidec D700 Installation And Maintenance Manual
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Nidec D700 Installation And Maintenance Manual

Digital voltage regulator
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  • Page 1 D700 Digital voltage regulator Installation and maintenance...

  • Page 3: Table Of Contents

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Table of contents 0. TERMS AND EXPRESSIONS ............................6 1. General Instructions ..............................7 1.1. Identity sheet ..............................7 1.2. General overview of the product ........................7 1.3.
  • Page 4 4.3. PC software ..............................49 4.3.1. Software installation ..........................49 4.3.2. Home form ............................... 51 4.3.3. Description of the banner and tabs......................51 4.3.4. Communication with the D700 ........................ 54 4.3.4.1. USB ..............................54 4.3.4.2. Ethernet ............................. 54 4.3.5. “Configuration” window ........................... 56 4.3.6.
  • Page 5 5.2. Preventive maintenance instructions ......................124 6. Reycling instructions ............................. 125 7. APPENDICES ................................126 7.1. Diagram of D700 with standard support plates .................... 126 7.2. Diagram of D700 with variant plates ......................127 7.3. Vector permutations ............................. 128 7.4. AVR priority ..............................129...

  • Page 6: Terms And Expressions

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 0. TERMS AND EXPRESSIONS Power transformer, in this manual a voltage transformer used both for the power supply and for measuring the voltage. Current transformer, used for measuring the current.

  • Page 7: General Instructions

    1.2. General overview of the product This manual describes how to install, use, set up and maintain the D700 AVR. The purpose of this AVR is to regulate alternators with a field current of less than 25 A in continuous operations, and 50 A maximum in the event of short-circuit for 10 seconds maximum.

  • Page 8: Technical Characteristics

    Quadrature droop, cross-current and load compensation cannot be enabled at the same time and require the use of an optional current transformer. Obligation to have the Grid code VTs and Grid code current measurement CT placed at the delivery point and wired on the D700. Page 8/132...

  • Page 9: Operating Values

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator The D700 can also be used to: Adjust the reference for the regulation mode in progress, using: • up/down volt-free contacts • an analog input (4-20 mA, 0-10 V, ±10 V, Potentiometer) •...
  • Page 10 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator DC (preloading not managed): • Range 50-400 VDC (110% max. 2 minutes) • Consumption max < 3000VA • Booster • Managed by an external module (optional), connected to the DC power supply.
  • Page 11 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Page 11/132...

  • Page 12: Safety Devices And General Warning Symbols

    1.4. Safety devices and general warning symbols For the user’s own safety, the D700 must be connected to an approved earth using the earth terminal shown below. The tooling for this connection is not included with the D700. A tightening torque of 2.5Nm +/- 0.5Nm must be applied to the screw.

  • Page 13: General Information

    The installation and cooling of equipment must comply with the specifications in the documentation supplied with the product. The D700 must be protected against excessive stress. In particular, there must be no damage to parts and/or modification of the clearance between components during transportation and handling. Avoid touching the electronic components and any live parts.

  • Page 14: Electrical Connection

    Modifications to the D700 parameters using control software or the HMI are permitted. Active parts of the device and live power connections must not be touched immediately after the D700 is powered down, as the capacitors may still be charged. In view of this, the warnings fixed to the voltage regulators must be observed.

  • Page 15: Installation Instructions

    2.2. Mounting The D700 does not have integrated mounts. A set of feet needs to be added for the AVR to be attached at the back of the cabinet. These feet are inserted on each side in the heatsink slide rails, at the top and bottom of the D700.
  • Page 16 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Step 1: Insert the foot in the slides Step 2: Fit the retaining screws Two foot part numbers are available. The diagrams are available in the appendix.

  • Page 17: Connections

    Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 2.3. Connections The D700 must be connected to the various measurement, power and control signals to be able to perform its regulation functions: Grid code voltage measurement •...
  • Page 18 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Connection Electrical schematic 3-Phase/Neutral NOTE: The grid code voltage measurement connection must match the grid code current measurement transformer mounting phase which is mounted on phase L2. If this wiring is not complied with, the resulting power and power factor calculations will be incorrect.
  • Page 19 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Connection Electrical schematic Phase/Neutral Phase/Phase 3-Phase 3-Phase/Neutral NOTE: The alternator voltage measurement connection must match the alternator current measurement transformer mounting phase(s). If there is only one current transformer, it should be mounted on phase V.
  • Page 20 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Temperature measurement inputs • Pt100-1 Pt100-2 Pt100-3 For each connector Pt100 - Pt100 + Pt100-4 Pt100-5 Pt100-6 Compensation Figure 4: Temperature sensor connections 2-wire and 3-wire Pt100 temperature sensors can be connected:...
  • Page 21 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Each analog input can be configured with several modes: Connection Electrical schematic Potentiometer 4-20 mA +/-10 V 0/+10 V Each input is defined by a destination parameter and its signal type (potentiometer, 4-20 mA, ±10 V, 0/10 V) and by its minimum and maximum limits.
  • Page 22 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Digital outputs: • Figure 7: Digital output connections Each digital output is open collector transistor type. They can each withstand a maximum voltage of 24 VDC and 60 mA maximum.
  • Page 23 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Digital inputs: • DI1 DI2 0V DI3 DI4 DI5 DI6 0V DI7 DI8 DI9 DI10 0V DI11 DI12 DI13 DI14 0V DI15 DI16 Figure 8: Digital input connections Each digital input should be controlled by a volt-free contact.
  • Page 24 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Relay outputs: • DO11 DO12 DO10 Figure 9: Relay output connections The relay outputs are volt-free contacts, isolated from the product earth. They can withstand a maximum voltage of 125 VAC-1 A or 30 VDC-3 A maximum.
  • Page 25 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator The power stage can be supplied with DC voltage, with a maximum voltage of 400 VDC. Connection Electrical schematic DC voltage power supply CAUTION: This power supply is directly linked to the power unit capacitor voltage. This voltage feed should therefore be protected by a diode and a suitable capacitor preloading system so as to avoid damaging them.
  • Page 26 In the event of a “black start” (without auxiliary power supply), and only in this specific instance, the auxiliary voltage input can be supplied from the power unit DC voltage (VBus). The D700 is then able to manage this voltage which can reach 400 VDC maximum.
  • Page 27 • Figure 13: AC auxiliary power supply connection The D700 power stage can take several different source types: shunt, PMG, AREP, or external power supply. This stage consists of rectifier diodes as in the electrical schematic below. NOTE: According power supply, a suitable capacitor preloading system will be implemented so as to avoid damaging them.
  • Page 28 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Connection Electrical schematic 3-phase SHUNT 2-phase SHUNT Phase/neutral SHUNT (low voltage) Page 28/132...
  • Page 29 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Alternator current measurement (parallel operation CT): • S1 S2 S1 S2 S1 S2 Figure 14: Alternator current measurement connection The alternator current can be measured on 1 phase or 3 phases. If there is only one CT, it should always be mounted on phase V.
  • Page 30 If the machine is taken offline, the K contact must be closed. It must be open if the machine is running. The cross-current loop cannot be used to calculate power ratings on the D700. If this type of measurement is essential for the application to work properly, an extra CT must be connected to the alternator current measurement input.

  • Page 31: Wiring Precautions

    To ensure respect of standards IEC 61000-6-2, IEC 61000-6-4, IEC 60255-26, shielded cables are imperative in case of a D700 installed outside of the terminal box. The total ohmic value of the exciter loop (out and back) must not exceed 5% of the exciter resistance, regardless of the cable length.

  • Page 32: Handling

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 2.5. Handling This AVR weighs 3.09 kg (6.823 lbs), with its center of gravity at the back, around the power bridge. Appropriate precautions should therefore be taken when installing it at the back of the cabinet.

  • Page 33: Installation Instructions

    The D700 operating ranges must always be adhered to. Changing the settings to inappropriate voltages or currents may cause partial or total destruction of the AVR and/or alternator.

  • Page 34: Led Behaviour

    White and purple if both the USB and the Ethernet are connected • On starting the D700, the screen below appears, indicating your AVR firmware version (at the bottom). 3.2.3. “User” mode “User” mode only allows viewing of menu “0” whose pages are defined in your AVR. In factory...
  • Page 35 Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator The “up” (next page) and “down” (previous page) buttons are used to move between pages. As well as these pages, the inputs and outputs can be displayed. A white square corresponds to a disabled input or output, a black square corresponds to an enabled input or output.
  • Page 36 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Synoptic view of moving between pages: Digital inputs Down Digital outputs Down Analog inputs and Using buttons « Right » and « Left »:...

  • Page 37: Messages

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 3.2.4. Messages When changing regulation mode, a pop-up window displays the information. In the example below: regulation is switched on in voltage regulation mode.

  • Page 38: Description Of Operating And Runtime Modes

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 3.3. Description of operating and runtime modes 3.3.1. Regulation modes The various regulation modes to be configured depend on the alternator operation (standalone, parallel between machines, parallel with the grid).
  • Page 39 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Example no. 2: The alternator is connected to other alternators and a load (factory, lighting, • pump, etc.). Load D700 D700 D700 • The AVR is operating in voltage regulation mode only.
  • Page 40 D700). • Remote measurement of this power factor through a D700 analog input or by a fieldbus provided too long of a delay is not introduced into the measuring circuit loop (need to match the delay and the speed of the PID).

  • Page 41: Control Of Modes And Information

    Synchro check (Code ANSI 25). 3.3.4. Related functions Other D700 functions can be used to record events, supervise the phase synchronizing the alternator with the grid, or create simple control systems or functions for monitoring references. These different functions are described in section "4. Setup instructions”.
  • Page 42 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator ANOMALIES CAUSES REMEDIES RESTARTING The AVR is not responding Microcontroller trip Replace the AVR Replace the AVR as described in (display frozen, no section 3.5 communication, etc.)

  • Page 43: Replacing A Faulty Avr

    • Undo all the AVR mounting brackets so it can be removed from its position. • If you do not have the AVR configuration file, the factory output configuration can be found on the D700 SD • card. Still using the PC software, export the retrieved configuration to the new D700 AVR.

  • Page 44: Setup Instructions

    5513 en - 2017.10 / a D700 digital voltage regulator 4. Setup instructions 4.1. General parameter-setting information The D700 parameters can be set in 3 ways: Via the HMI interface on the product (display and buttons) • Using the PC software distributed with the product •...
  • Page 45 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator To change parameter, the procedure is as follows: If all 4 parameters are displayed: • Press “OK” on the row containing the parameter you wish to delete from the page.

  • Page 46: Super User" Mode

    D700 digital voltage regulator 4.2.2. “Super User” mode This mode allows users to read and write the various D700 parameters (depending on authorizations). To activate this mode: Press “OK” on one of the monitor pages to bring up the menu on the right.
  • Page 47 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Reference values Activation level Activation level (0-10V…) configuration Correction values Input destination Output source Upper and lower limits No adjustment Input state Output state...

  • Page 48: Return To "User" Mode From "Super User" Mode

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator To parameter x.00y Down Parameter x.001 Down Is the parameter read- only? Down Parameter x.00y Read-only Parameter modification display possible Down To parameter x.001...

  • Page 49: Pc Software

    5513 en - 2017.10 / a D700 digital voltage regulator 4.3. PC software All the D700 settings can be entered using the "EasyReg Advanced" software supplied with the AVR. The parameter-setting pages describe primarily the alternator parameters, regulations, limits, and protection devices.
  • Page 50 Step 3: Once installation is complete, you can choose to start the software (box ticked by default) , to display an icon on the desktop, to display an icon in the start menu, to have shortcuts for D700 and D350 (common PC-software) and in the start menu, and click “Done”...

  • Page 51: Home Form

    Expert: configuration parameters are in read/write access mode. • In both cases, monitoring of the D700 is possible. 4.3.3. Description of the banner and tabs The software takes the form of a single window with a general banner and a zone in which sub-windows open.
  • Page 52 Programs comparison “Communication” group: • Load the parameters into the D700 Download the D700 parameters NOTE: Before parameters are exported the user will be asked to confirm and to check the product status (regulation in progress or not). If regulation is in progress, confirmation is requested again.
  • Page 53 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator “Information” group: • Language Access level selection Access to the Open the software SD card as USB information window mass storage “Setting” group: •...

  • Page 54: Communication With The D700

    D700 digital voltage regulator 4.3.4. Communication with the D700 To communicate with the D700 and PC software, two modes are possible: USB or Ethernet. To define your communication mode, click on the following icon in the "General" group on the banner A form will open, in which a communication mode can be chosen: 4.3.4.1.
  • Page 55 In the left panel, the D700 should appear: • The same address is indicated on the bottom left of the PC software when your D700 is connected • Note: A Windows® event can occur, and a window can appear. In this case consult IT...

  • Page 56: Configuration" Window

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.5. “Configuration” window This window consists of several pages for configuring the entire alternator operation. To move between pages, use the “Next” or “Previous” buttons or click on the list of pages.
  • Page 57 5513 en - 2017.10 / a D700 digital voltage regulator Wiring: this page contains all the D700 wiring data for the measurement inputs (alternator voltage, • alternator current, grid voltage, grid current). Each time the wiring is modified by selection of a VT or CT, the drawing changes.
  • Page 58 Protection devices: this page contains the parameter settings for the protection devices provided by the • D700 (rotating diode trip, overvoltage and under voltage, temperatures… etc.). One page allows doing some groups faults to realize information as "fault synthesis" Page 58/132...
  • Page 59 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Regulation modes: this page contains all the regulation parameter settings: active regulations, • references and their adjustments. PID gains: this page contains all the values for the PID settings.
  • Page 60 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator I/O: this page contains an overview of the digital and analog I/O parameter settings. • • Curve functions: this page is used to define the control functions of a parameter as a function of another by plotting 5 points.
  • Page 61 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Logic functions: this page is used to configure simple logic functions at I/O level and the type of gate. A • description of these gates and some examples are given in section "4.3.11. Logic gates”.
  • Page 62 Ethernet configuration: this page is used to define the D700 Ethernet parameters, manage e-mails from • the D700 and configure the server and SMTP account. RTC configuration: this page is used to set the D700 time based on the PC date and time. • Page 62/132...
  • Page 63 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Synchronization: this page is used to define the parameters for synchronization between the alternator • and the grid. Grid code: this page is used to define the parameters dedicated to grid code protections •...

  • Page 64: Oscilloscope" Window

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.6. “Oscilloscope” window This window is used to trace the values of up to 8 parameters simultaneously. 4.3.6.1. Curves Each curve is described by: its color, its source parameter, its minimum and maximum values. It has its own axis, which is the same color as the curve.
  • Page 65 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Should you wish to configure a color not in the palette, click on the “Other colors…” button. The • palette is then transformed. Move the black cross to the selected color or fill in the text boxes (each value between 0 and 255) to define the RGB color values.

  • Page 66: Trigger

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.6.2. Trigger The trigger is used to launch oscilloscope operation once the chosen parameter value exceeds the value entered either upwards (arrow facing up) or downwards (arrow facing down).

  • Page 67: Cursors

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.6.3. Cursors Two cursors are available for browsing the curves. The difference between the two values of X (time in seconds) and Y (curve value) is displayed in the “Delta” part.

  • Page 68: Transient Test

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.6.4. Transient test The transient test is used to check the PID response when changing the voltage reference. It is divided into 5 steps maximum, each of which can take a different reference value.

  • Page 69: Open A Curve Or An Oscilloscope Display Configuration

    Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.6.5. Open a curve or an oscilloscope display configuration The “Open” button (yellow folder) at the bottom right of the oscilloscope window can be used to open an oscilloscope display configuration file (curves, minimum and maximum values, etc.).

  • Page 70: Monitor" Window

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.7. “Monitor” window This window is used to configure the parameter display in different forms (gauges, graphs, display units), as well as certain AVR-specific components: PQ diagram, I/O, temperatures.

  • Page 71: Graph

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.7.2. Graph To add a new graph: Click on the “Graph” button, a window opens. • Select the parameter you wish to track from the drop-down list. This parameter can be an analog or •...

  • Page 72: Capability Curve

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Click “OK” to use the selected parameter, or “Cancel” if you don't wish to change anything. • The gauge is then inserted in the monitor in the first free slot (from left to right and then from top to •...

  • Page 73: Temperatures

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.7.6. Temperatures To add the temperature module, click on the corresponding button. The module is then inserted in the monitor in the first free slot (from left to right and then from top to bottom).

  • Page 74: Change The Size Of An Object

    Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator This module contains the D700 operating information, the regulation mode in progress, as well as the list of active faults. 4.3.7.9. Change the size of an object It is possible to change the size of graphs, gauges and the PQ diagram.

  • Page 75: Save A Monitor Configuration

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Exit “Edit mode” either by pressing the “Esc” key or by right-clicking in the monitor area and deselecting “Edit mode”. 4.3.7.11. Save a monitor configuration A monitor configuration can be saved in order to be reused later.

  • Page 76: Harmonic Analysis" Window

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.8. “Harmonic analysis” window This window is used to display the harmonic levels from number 1 to number 12, found on the voltage and current measurements.

  • Page 77: Create A New Configuration

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.9. Create a new configuration Click on the “Configuration” button, which opens the settings window. The sequence of configuration steps is shown in the diagram below:...

  • Page 78: Step 1: Description Of The Alternator

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.9.1. Step 1: Description of the alternator Describe all the alternator characteristics: voltage (in Volts), apparent power (in kVA), frequency • (in Hz), and power factor.
  • Page 79 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Alternator current measurement CTs: • If these are present, select the box. The various parameters can then be set. • State the primary and secondary winding current (in Amps).

  • Page 80: Step 3: Definition Of The Under Excitation Limit

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Step-up VT: • This VT corresponds to a power transformer which can be found between the alternator and the • grid. It makes it easier to calculate the voltage when matching the grid voltage, especially if the ratios between the primary and secondary on the various measurement VTs are not identical.

  • Page 81: Step 4: Definition Of The Over Excitation Limit

    (shown in red below) is then compared with the “maximum field current x time” area (shown in blue below). If S1 equals S2, the limit is active and the D700 limits the field current to 99% of the rated current (which in this case results in the regulation mode in progress reference not being tracked).

  • Page 82: Step 5: Definition Of The Stator Current Limit

    “stator current measurement x time” area (shown in red below) is then compared with the “maximum stator current x time” area (shown in blue below). If S1 equals S2, the limit is active and the D700 limits the stator current to 99% of the rated current (which in this case results in the voltage reference not being tracked).

  • Page 83: Step 6: Definition Of The Protection Devices

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.9.6. Step 6: Definition of the protection devices There are 3 types of protection devices: • Generator faults Regulator faults • The alarm and trip thresholds for each temperature sensor •...
  • Page 84 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator On activation of this fault, background becomes light green Under voltage and overvoltage: These protections can be enabled by ticking the checkboxes • "Activation" and defining a threshold (in percentage of the rated voltage) and a delay before the activation of the protection.
  • Page 85 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator In the case below: Open diode fault is activated if the percentage of the field current harmonics is higher than 5% for • at least 1 second. This fault is active only if the regulation is enabled.
  • Page 86 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Loss of sensing: this protection can be enabled by ticking the checkbox "Activation" and defining a • voltage threshold in percentage of the generator voltage setpoint, as well as a delay before activation of the protection device.
  • Page 87 Power supply fault: this protection can be enabled by ticking the checkbox "Activation". It's the result • of a control of internal supplies of the D700. In the case below, the trip is active if one of the internal supplies is missing •...
  • Page 88 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator External power bridge communication fault detected: this protection can be enabled by ticking the • checkbox "Activation" and defining a delay. This fault is used only if MENTOR® external power bridge is used.

  • Page 89: Step 7: Setting The Ramp

    Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator On the last protections page, fault groups can be defined: all protections can be grouped to activate one or several signals (digital output for example), to do a synthesis of several faults. If one of these faults is activated, the entire group is activated.

  • Page 90: Step 8: Voltage Regulation

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Select the field excitation starting mode from the drop-down list. This can be: • Controlled by a digital input (DI1 to DI16) • Always enabled by selecting “Always active”. In this case, the field excitation is always energized •...
  • Page 91 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Cursor NOTE: By moving the cursor, it is possible to view the values obtained on the voltage and under frequency curves displayed on the right.
  • Page 92 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator • Quadrature droop: Select the box to enable this and give a voltage drop percentage between -20% and +20% (caution, a negative value corresponds to an increase in voltage). This function is mainly used in the case of alternators operating in parallel with one another.
  • Page 93 This function is active only in voltage regulation mode and allows limiting the stator current at a defined value. When the breaker is closed between the motor and the generator, the D700 continues to regulate the voltage until the stator current measured reaches the limitation value. In this case, the D700 regulates the stator current.
  • Page 94 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator LAM : Load Acceptance Module. This function improves the generator response reducing the voltage • setpoint on load impacts. When generator frequency measured is below the under-speed knee defined in the configuration •...

  • Page 95: Determination Of The Regulation Modes

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator From this derivative value, an attenuation coefficient (K) of the voltage is calculated according to • the parameters configured by the user. In the example below, for a frequency variation of 10Hz/s, the applied voltage drop will be 10% of the nominal voltage.

  • Page 96: Step 10: Regulation Of The Generator Power Factor

    Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.9.11. Step 10: Regulation of the generator power factor: This regulation must be enabled as soon as the machine is connected to the grid (grid contactor closing •...
  • Page 97 Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator NOTE: By moving the cursor, it is possible to view the power factor reference (blue line) on the capability diagram located on the right of the page.

  • Page 98: Step 11: Regulation Of Generator Kvar

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.9.12. Step 11: Regulation of generator kVAr This regulation must be enabled as soon as the machine is connected to the grid (grid contactor closing •...
  • Page 99 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator If the “Analog input” option is selected, the “Reference via analog input” part is enabled further • down. Select the desired analog input box, determine its mode (+/-10 V, 0/10 V, 4-20 mA, potentiometer) and the kVar values at 0% and 100%.

  • Page 100: Step 12: Regulation Of Power Factor At One Point On The Grid

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator The limits of this reference should be fixed according to the machine capability (in the example • below, the kVAr regulation is fixed between -10% of the alternator rated kVA power (drawing reactive power as seen by the generator) and 62% of the alternator rated kVA power (supplying reactive power as seen by the generator).
  • Page 101 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator If the “Analog input” option is selected, the “Reference via analog input” part is enabled further • down. Select the desired analog input box, determine its mode (+/-10 V, 0/10 V, 4-20 mA, potentiometer) and the power factor values at 0% and 100%.

  • Page 102: Step 13: Regulation Of The Field Current (Manual Mode)

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator The limits of this reference should be fixed as required. In the screenshot below they are 1 (drawing • reactive power as seen by the generator) and 0.8 (supplying reactive power as seen by the generator).
  • Page 103 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator If the “Analog input” option is selected, the “Reference via analog input” part is enabled further • down. Select the desired analog input box, determine its mode (+/-10 V, 0/10 V, 4-20 mA, potentiometer) and the power factor values at 0% and 100%.

  • Page 104: Step 14: Setting The Pid Gains

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator The “tracking” function, when switching from a regulation mode to manual mode, allows the field • current measurement to be used as a reference. This prevents any visible “jumps” on the machine.

  • Page 105: Step 15: I/O Management

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator If a shunt or AREP type field is being used, the power supply voltage depends directly on the voltage at • the alternator terminals. As a result, it can fluctuate with the load and therefore influence the PID's behavior.

  • Page 106: Curve Functions

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator The analog outputs can be configured by defining the source, the configuration and the 0% and 100% • values. • The digital outputs can be configured by defining the source, the activation (active low = closed if the condition is fulfilled, “active high”...

  • Page 107: Example Of Curve Functions

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator The curve fields can be reset by clicking on the “Reset” button of each curve. 4.3.10.2. Example of curve functions • Reactive power reference as a function of the grid voltage for a 400 V machine NOTE: We can see that for a voltage value below that defined at point “1”, the power reference is held...

  • Page 108: Logic Gates

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.11. Logic gates 4.3.11.1. Overview Logic gates are used for simple control with one or two inputs and one configurable output by means of drop-down lists.
  • Page 109 Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator They can be linked in sequence (using an output gate as an input condition for another gate). Digital “user” variables can be used as a gate input parameter in comparator mode.

  • Page 110: Examples Of Gate Programming

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator A help is available by clicking on the question mark, which brings up the truth table for the active gate. This is an AND gate 4.3.11.2.
  • Page 111 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Pulsed Starting and Stopping: The regulation function is switched on by a maintained input. As soon as • this input changes state, field excitation is stopped. Pulsed starting and stopping can be configured using a SET-RESET gate: E1 “DI1”, which sends the start pulse...

  • Page 112: Data Logger

    Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.3.12. Data logger The data logger is used to create text or csv type files, which will be stored in the AVR on an SD card, and can then be exploited using a spreadsheet to create graphs.
  • Page 113 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator The parameter threshold which triggers the data logger • 4 trigger sources can be entered and it is possible to select which condition between triggers will be applied (“AND”...

  • Page 114: Access To Files On Sd Card

    4.3.13. Access to files on SD card To access to the files stored on the SD card, D700 must be connected in USB. Click on the "SD" button in "Info" group in the banner: D700 is then disconnected and the communication is stopped to become a gateway to access to the SD card.

  • Page 115: Ethernet

    The D700 MAC address is also displayed in the network configuration. If the “Web Server active” box is selected, the D700 can be connected directly via an Internet browser by simply entering its IP address (in development).

  • Page 116: Managing E-Mails

    NOTE: E-mail sending is triggered by a logic gate. 4.3.15. Setting the D700 time The time of the D700 internal clock (Real Time Clock) is set on the “RTC Configuration” page by clicking on the “Time setting” button. The PC time is copied to the D700.

  • Page 117: Synchronization

    D700 digital voltage regulator 4.3.16. Synchronization As long as the grid code voltage measurement is wired, the D700 is capable of running the grid synchronization sequence. In this case, check that the phase order is correct (since the D700 does not do this) and that the grid and the generator have the same measurement type (single-phase, or three-phase).
  • Page 118 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator The synchronization sequence is controlled by a parameter which is kept active (controllable from an input, communication, or a logic gate). The possible synchronization pulse remains active as long as the frequency difference and voltage difference are in the range defined by the upper and lower limits.

  • Page 119: Grid Code

    (in ms) and the voltage difference in percentage of the rated grid voltage. With this device, the D700 will force voltage regulation mode to sustain the grid absorbing or producing reactive power in case of the voltage measured at generator terminals is out of the limited range. In the...

  • Page 120: Grid Code Profile Monitoring

    This device is activated selecting "Enable grid code profile monitoring". It's also imperative to fill values of the profile, imposed by the grid code standard applied in the location where the D700 is implemented. It allows monitoring that generator voltage is always at least greater or equal to the value given in the profile, as soon as the grid code event is started.

  • Page 121: Pole Slipping Monitoring

    Overcurrent status 4.3.17.4. Pole slipping monitoring This monitoring system is possible only if an encoder is wired and installed on the D700 on the encoder input This function is activated by selecting "Enable pole slipping detection" and giving values for the different...

  • Page 122: Comparison Window

    4.4. Comparison window This window is available by clicking on the button in the home page banner: The “Comparison” is used to: Compare the D700 configuration with a file • • Click on the file 1 “…” button to select the configuration file.

  • Page 123: Print Reports

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 4.5. Print reports A resume of the configuration as a report is possible using "Print" button (this one is active only if settings page is open). This report indicates configuration data of the regulator. A form is open and this report can be printed or/and exported in another format.

  • Page 124: Maintenance Instructions

    (tightening torque between 0.6 Nm and 0.8 Nm), blow dry air through to get rid of any dust that may have settled on and around the D700. Special care should be taken to ensure free circulation of air around the aluminum heatsink at the back of the device.

  • Page 125: Reycling Instructions

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 6. Reycling instructions LEROY-SOMER and KATO ENGINEERING are committed to minimizing the environmental impacts of its manufacturing operations and of its products throughout their life cycle. To this end, we operate an Environmental Management System (EMS) which is certified to the International Standard ISO 14001.

  • Page 126: Appendices

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 7. APPENDICES 7.1. Diagram of D700 with standard support plates Page 126/132...

  • Page 127: Diagram Of D700 With Variant Plates

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 7.2. Diagram of D700 with variant plates Page 127/132...

  • Page 128: Vector Permutations

    (cos phi) calculations. The D700 wiring then needs to be altered. The table below gives the possible permutations according to the phase used for the stator current measurement CT.

  • Page 129: Avr Priority

    Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator 7.4. AVR priority Field excitation switched on? Is field current Field current regulation regulation active? Is the mains contactor closed? Is grid PF Grid PF...
  • Page 130 Electric Power Generation Installation and maintenance 5513 en - 2017.10 / a D700 digital voltage regulator Page 130/132...
  • Page 131 Service & Support Our worldwide service network of over 80 facilities is at your service. This local presence is our guarantee for fast and efficient repair, support and maintenance services. Trust your alternator maintenance and support to electric power generation experts. Our field personnel are 100% qualified and fully trained to operate in all environments and on all machine types.
  • Page 132 Linkedin.com/company/Leroy-Somer Twitter.com/Leroy_Somer_en Facebook.com/LeroySomer.Nidec.en YouTube.com/LeroySomerOfficiel 5513 en - 2017.10 / a...

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