KMB NOVAR 2600 User manual

KMB systems, s.r.o.
Dr. M. Horákové 559, 460 06 Liberec 7, Czech Republic
tel. [phone], fax [phone]
email : [email protected], internet : www.kmb.cz
NOVAR 2600
Three-Phase Power Factor Contro ers
& Power Ana yzers
Operating Manual
Document
revision
Release
date
Valid for versions
hardware bootloader firmware ENVIS
1.3 15.6.2020 2.6 4.0 3.0.33 1.8

NOVAR 2600 Operating Manual
LIST OF CONTENTS
1. GENERAL...........................................................................6
1.1 Common features........................................................................................................................................ 6
1.2 Operation..................................................................................................................................................... 8
2. INSTALLATION..................................................................9
2.1.1 Physical................................................................................................................................................. 9
2.2 Instrument Connection............................................................................................................................... 9
2.2.1 Power Supply......................................................................................................................................... 9
2.2.2 Measured Electrical Quantities............................................................................................................10
2.2.2.1 Measured Voltages....................................................................................................................... 10
2.2.2.2 Measured Currents.......................................................................................................................10
2.2.3 Outputs................................................................................................................................................ 10
2.2.3.1 Relay Outputs............................................................................................................................... 11
2.2.3.2 Transistor Outputs........................................................................................................................ 11
2.2.4 Digital Input.......................................................................................................................................... 11
2.2.5 External Temperature Sensor.............................................................................................................. 12
3. COMMISSIONING.............................................................13
3.1 Setup.......................................................................................................................................................... 13
3.1.1 Measured Electrical Quantities Installation Setup................................................................................13
3.1.1.1 Setup Example............................................................................................................................. 14
3.1.2 PFC Setup........................................................................................................................................... 15
3.1.2.1 PFC Control Setup....................................................................................................................... 15
3.1.2.2 PFC Output Setup........................................................................................................................ 15
3.1.2.3 AOR Process................................................................................................................................ 15
4. PFC BLOCK......................................................................17
4.1 Basic Functions........................................................................................................................................ 17
4.2 Manipu ation and Setting......................................................................................................................... 17
4.2.1 PFC Screen......................................................................................................................................... 17
4.2.1.1 Outputs & Digital Input State........................................................................................................18
4.2.1.2 Outputs State Additional Information............................................................................................18
4.2.1.3 Power Factor Gauges................................................................................................................... 19
4.2.1.4 Control Deviation Flags................................................................................................................20
4.2.1.5 Control Time Bargraph.................................................................................................................20
4.2.1.6 Actual Data & Status Panel..........................................................................................................21
4.2.1.6.1 Actual Data Folders...............................................................................................................21
4.2.1.6.2 Alarms Folder........................................................................................................................ 22
4.2.1.6.3 Info Folder............................................................................................................................. 22
4.2.1.7 Actual Temperature Panel............................................................................................................ 22
4.2.1.8 Event Indicators............................................................................................................................ 23
4.2.1.9 Toolbar......................................................................................................................................... 23
4.2.1.9.1 Multifunction / button.............................................................................................................23
4.2.1.9.2 PFC Setup Direct Access Button...........................................................................................24
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NOVAR 2600 Operating Manual
4.3 PFC Setup Parameters.............................................................................................................................. 24
4.3.1 PFC Control Setup............................................................................................................................... 25
4.3.1.1 Target Power Factor for Tariff 1/2.................................................................................................25
4.3.1.2 Control Bandwidth on High Loads for Tariff 1/2............................................................................25
4.3.1.3 Control Time for Tariff 1/2.............................................................................................................26
4.3.1.4 Offset Power for Tariff 1/2...........................................................................................................27
4.3.1.5 Tariff 2 Control............................................................................................................................. 27
4.3.1.6 Tariff 2 Control Power.................................................................................................................. 28
4.3.1.7 Control Strategy........................................................................................................................... 28
4.3.1.8 Choke Control..............................................................................................................................29
4.3.1.8.1 Mixed Choke Control.............................................................................................................29
4.3.1.8.2 Non-Mixed Choke Control.....................................................................................................30
4.3.1.9 Choke Control Limit Power Factor (for Mixed Choke Control).....................................................30
4.3.1.10 Offset Control............................................................................................................................30
4.3.2 PFC Output Setup................................................................................................................................31
4.3.2.1 Compensation Section Type, Nominal Power and Control State..................................................31
4.3.2.2 Discharge Time for Output Set 1/2...............................................................................................33
4.3.2.3 Output Set 2................................................................................................................................. 34
4.3.2.4 Switching Mode............................................................................................................................ 34
4.3.2.5 AOR – Automatic Output Recognizer...........................................................................................35
4.3.2.6 Manual Output Type & Power Filler..............................................................................................35
4.3.3 PFC Alarm Setup................................................................................................................................. 36
4.3.3.1 Standard Type Alarms.................................................................................................................. 38
4.3.3.2 Fast Actuation Reaction Alarms...................................................................................................39
4.3.3.3 NS> - “Number of Switching Operations Exceeded” Alarm..........................................................39
4.3.3.4 OE - “Output Error” Alarm.............................................................................................................39
4.3.3.5 T1>< (T2><) - “Temperature Exceeded/Drop” Alarm..................................................................40
4.3.3.6 OoC - “Out of Control” Alarm........................................................................................................41
4.3.3.7 RCF - “Remote Control Failure” Alarm.........................................................................................41
4.3.4 Control / Manual State Indicator and Switch........................................................................................41
4.3.5 Power Factor Block Factory Setting.....................................................................................................41
4.4 PFC B ock Operation................................................................................................................................ 43
4.4.1 Control State........................................................................................................................................ 43
4.4.2 Manual State........................................................................................................................................ 44
4.4.3 Automatic Output Recognition (AOR) Process...................................................................................44
4.4.4 CT Connection Test............................................................................................................................ 46
4.4.5 Single-Phase Mode.............................................................................................................................49
4.4.5.1 Connection................................................................................................................................... 49
4.4.5.2 Setup............................................................................................................................................ 51
4.4.5.2.1 Connection Type 1Y3 / 1D3..................................................................................................51
4.4.5.2.2 Angle of Voltage Connected to the U1 Input (U1-Angle )......................................................51
4.4.5.2.3 ACD Process – Automatic Connection Detection.................................................................52
4.4.5.3 Operation...................................................................................................................................... 54
4.4.6 Special PFC-Block Related Quantities's Meaning & Evaluation...........................................................54
4.4.6.1 Values Used for Power Factor Control Evaluation and Aggregation.............................................55
4.4.6.2 ΔQfh – PF Control Deviation.......................................................................................................55
4.4.6.3 Cosφ / Tanφ / φ – Power Factor...................................................................................................55
4.4.6.4 CHL – Capacitor Harmonic Load Factor......................................................................................56
4.4.6.5 RC, RL – Compensation Reserve Powers...................................................................................57
5. METER BLOCK................................................................60
5.1 Basic Functions........................................................................................................................................ 60
5.2 Meter B ock Manipu ation and Setting....................................................................................................60
5.2.1 Data Area – Status Bar - Toolbar.........................................................................................................60
5.2.2 Main Menu........................................................................................................................................... 61
5.2.2.1 Actual Data Group........................................................................................................................ 61
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NOVAR 2600 Operating Manual
5.2.2.2 Daily and Weekly Graphs.............................................................................................................63
5.2.2.3 Electricity Meter Data Group.........................................................................................................63
5.2.2.4 Instrument Setting........................................................................................................................64
5.2.2.4.1 Display Setting...................................................................................................................... 64
5.2.2.4.2 Installation Setting.................................................................................................................64
5.2.2.4.3 Clock Setting......................................................................................................................... 64
5.2.2.4.4 Average Values Processing Setting.....................................................................................65
5.2.2.4.5 Remote Communication Setting............................................................................................65
5.2.2.4.6 Embedded Electricity Meter Setting.....................................................................................65
5.2.2.4.7 Archiving Setting..................................................................................................................65
5.2.2.5 Instrument Lock........................................................................................................................... 66
5.2.2.5.1 Locking.................................................................................................................................. 66
5.2.2.5.2 Unlocking from the User Locked State..................................................................................66
5.2.2.5.3 Unlocking from the Admin Locked State...............................................................................66
5.2.2.6 Instrument Information................................................................................................................. 66
5.2.2.6.1 Info – General Window.........................................................................................................67
5.2.2.6.2 Info – Archive Status............................................................................................................67
5.2.2.6.3 Info – Producer..................................................................................................................... 67
5.3 Description of Operation.......................................................................................................................... 68
5.3.1 Method of Measurement...................................................................................................................... 68
5.3.1.1 Voltage Fundamental Frequency Measurement Method..............................................................68
5.3.1.2 Voltage and Current Measurement Method..................................................................................68
5.3.1.3 Harmonics and THD Evaluation Method.......................................................................................69
5.3.2 Power, Power Factor and Unbalance Evaluation Method....................................................................69
5.3.2.1 Temperature................................................................................................................................ 71
5.3.3 Measured Values Evaluation and Aggregation....................................................................................71
5.3.3.1 Actual Values Evaluation and Aggregation...................................................................................71
5.3.3.1.1 Harmonics and THD Presentation.........................................................................................72
5.3.3.2 Average Values Evaluation...........................................................................................................72
5.3.3.2.1 Maximum and Minimum Average Values.............................................................................73
5.3.3.3 Recorded Values Aggregation......................................................................................................74
5.3.4 Embedded Electricity Meter.................................................................................................................74
5.3.4.1 Electric Energy Processing...........................................................................................................74
5.3.4.2 Maximum Demand Registration...................................................................................................74
5.3.4.3 Setting......................................................................................................................................... 75
5.3.4.4 Energy Presentation....................................................................................................................75
5.3.4.5 Maximum Demand Presentation..................................................................................................76
5.3.5 Inputs.................................................................................................................................................. 76
6. COMPUTER CONTROLLED OPERATION......................77
6.1 Communication Links............................................................................................................................... 77
6.1.1 Local Communication Link...................................................................................................................77
6.1.2 Remote Communication Links.............................................................................................................77
6.1.3 RS-485 Interface (COM)......................................................................................................................77
6.1.3.1 Communication Cable.................................................................................................................78
6.1.3.2 Terminating Resistors.................................................................................................................. 78
6.1.4 Ethernet (IEEE802.3) Interface............................................................................................................78
6.2 Communication Protoco s....................................................................................................................... 78
6.2.1 KMB Communications Protocol..........................................................................................................78
6.2.2 Modbus-RTU Communications Protocol.............................................................................................79
6.3 Embedded Webserver............................................................................................................................... 79
7. EXAMPLES OF CONNECTIONS.....................................80
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NOVAR 2600 Operating Manual
8. MANUFACTURED MODELS AND MARKING.................89
9. TECHNICAL SPECIFICATIONS.......................................90
10. MAINTENANCE, SERVICE............................................96
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NOVAR 2600 Operating Manual
1. Genera
This manual comprises description of NOVAR 2600 three-phase power factor controllers.
The controllers are based on precise and powerful three-phase measurement & evaluating core and
combine multifunctional panel meter and power quality analyzer with power factor control functionality
in the same box.
The built-in meter can be optionally equipped with memory for datalogging of measured quantities and
various events in the network thus the instruments can be used for long time network data recording.
For on-line monitoring, the controllers can be provided with remote communication interface.
The controllers can be delivered in various modifications : with various numbers of outputs & inputs,
optional datalogging capabilities and communication interfaces. Depending on it the instruments
support only basic functions or additional functions too.
1.1 Common features
Power Factor Contro
• individual phase power factor control capability using single- / two- / three-phase capacitors
and chokes
• selectable power factor control strategy : both three- and single-phase control / three-phase
control only / three independent single-phase controls
• up to 18 output sections, relay or solid-state
• controller’s speed of response independently programmable for conditions of
undercompensation and overcompensation
• the preset speed of response increases in proportion to instantaneous control deviation, that
is either with the value squared or in direct proportion to the ratio of the control deviation to
the smallest section value (OMIN)
• adjustable control range to reduce the number of control interventions in systems with a wide
control range at high loads
• combined mains compensation & decompensation capability
• selectable two-rate operation controlled with active power level or external signal (optional
input)
• automatic output section recognition, any combination of the output sections possible
•continuously checks output sections in the control process. When failure is detected
repeatedly, disables the faulty section and possibly actuates alarm.
•periodically rechecks the temporarily disabled sections and on positive test result (for example
when replacing a section’s burnt fuse link), it enables them again automatically
• wide assortment of independently settable alarm’s warning and actuation functions
( undervoltage, overvoltage, undercurrent, overcurrent, THDU limit overflow and more )
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NOVAR 2600 Operating Manual
Measurement & Eva uation
• three measurement wide range voltage inputs, star / delta / Aron connection
• three measurement current inputs for xxx/ 5A or xxx /1A CTs connection
• sampling rate 128/96 samples/period, 10/12 periods evaluation cycle (200 ms at 50/60 Hz)
• continuous ( gap-less) measurement of voltage and current
• evaluation of harmonic components up to 40th
• fixed window / floating window / thermal average values of all evaluated quantities with
minimum & maximum values registration
• built-in electricity meter :
•four-quadrant three tariff electricity meter
•single phase and three phase energies
•maximum of average active power value ( power demand )
•built-in thermometer
Design
•144x144 mm plastic box for panel mounting
•LCD graphic display, 5 keys
•digital input ( 7- & 16-output models only )
•optional input for external Pt100 temperature sensor
Communication ( Se ected Mode s On y )
•optional remote communication interface ( RS 485 / Ethernet )
•optional USB 2.0 communication port for fast data acquisition, configuration and firmware
upgrades
•proprietary protocol with free data acquisition software ENVIS
•MODBUS RTU and MODBUS TCP protocols for simple integration with third party SCADA
software
•embedded webserver ( for instruments with Ethernet interface )
Data ogging Capabi ities ( Se ected Mode s On y )
•battery backed real time circuit (RTC)
•selection of aggregation intervals from 1 second up to 24 hours
•high memory capacity for programmable recording of aggregated measurement values
•automated electricity meter readings at preselected time intervals
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NOVAR 2600 Operating Manual
1.2 Operation
From point of view of function the NOVAR 2600 power factor controllers consist from two main blocks.
The first of them is universal three-phase meter. The meter can be optionally equipped with battery
backed real time circuit, additional memory for datalogging, various communication interfaces etc.,
forming powerful network analyzer.
The second part of the instrument is power factor control block. The block uses measured data from
the meter block; except of this, both of the blocks operate autonomously.
Fig. 1.1: NOVAR 2600 Block Diagra
After an activation of supply voltage, the instrument accomplishes internal diagnostics, updating of
internal database of measured data and then it starts to measure and display actual measured data.
Simultaneously, the power factor control blocks starts and tries to keep power factor as near as
possible to the preset value by connecting optimal combination of compensation elements to the
network.
All of actual measured and evaluated data can be observed on the instrument's display. Navigation
through the screens is intuitive with arrow keys. The data are arranged in row of screens according
navigation maps below.
Fig. 1.2 : NOVAR 2600 Display – Main Menu
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Electricity
Meter
General
Meter
PFC Graphs

NOVAR 2600 Operating Manual
2. Insta ation
2.1.1 Physica
The instrument is built in a plastic box to be installed in a distribution board panel. The instrument’s
position must be fixed with locks.
Natural air circulation should be provided inside the distribution board cabinet, and in the instrument’s
neighbourhood, especially underneath the instrument, no other instrumentation that is source of heat
should be installed.
2.2 Instrument Connection
2.2.1 Power Supp y
The instrument requires an AC or DC voltage power supply as specified in technical parameters. The
supply inputs are isolated from other circuits of the instrument.
It is necessary to connect an auxiliary supply voltage in the range as declared in technical
specifications table to the terminals AV1 ( No. 9, L ) and AV2 ( No.10, N ). In case of DC supply
voltage the polarity of connection is generally free, but for maximum electromagnetic compatibility the
grounded pole should be connected to the terminal AV2.
The supply voltage must be connected via a disconnecting device ( switch - see installation diagram ).
It must be situated directly at the instrument and must be easily accessible by the operator. The
disconnecting device must be labelled as the disconnecting device of the equipment. A two-pole
circuit breaker with the C-type tripping characteristics rated at 1A may be used for the disconnecting
device; however its function and position must be clearly marked (symbols „O" and „I" according to EN
61010 – 1). If one of the supply signals is neutral wire N (or PEN) usually a single breaker in the line
branch is sufficient.
Since the instrument’s inbuilt power supply is of pulse design, it draws a momentary peak current on
powerup which is in order of magnitude of amperes. This fact needs to be kept in mind when selecting
the primary protection devices.
Fig. 2.1: Typical star (3Y) connection, ains 3 x 230/400 V
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NOVAR 2600 Operating Manual
2.2.2 Measured E ectrica Quantities
2.2.2.1 Measured Vo tages
Measured voltages in wye ( star ), delta or Aron connection connect to terminals VOLTAGE / N (No.
11), U1 (No. 12), U2 (No. 13), and U3 (No. 14). Phase rotating direction is free.
Types of connections are stated in the following table.
Tab. 2.1: Connection of the easured voltages – VOLTAGE group of ter inals
Terminal Type of connection
VOLTAGE wye-star (Y) delta (D) Aron (A)
U1L1-phase voltage L1-phase voltage L1-phase voltage
U2L2-phase voltage L2-phase voltage L2-phase voltage
U3L3-phase voltage L3-phase voltage L3-phase voltage
UNneutral wire voltage - -
It is advisable to protect the supply leads by 1A safety fuses.
The type of voltage and currents connection must be entered in Installation parameters : the code
shows the amount of connected phases, 3Y means three-phase connection in wye ( star ), 3D in delta.
3A means Aron connection. For 1Y3 or 1D3 setup, the instrument operates in, so called, single phase
ode – see description in appropriate chapter below..
In the case of indirect connection via the measuring voltage transformers, it is necessary to enter this
matter ( connection Mode ) and the values of the VT ratios during the setup of the instrument.
2.2.2.2 Measured Currents
The instruments are designed for indirect current measurement via external CTs only. Proper current
signal polarity (S1 & S2 terminals) must be observed. You can check the polarity by the sign of phase
active powers on the instrument display (in case of energy transfer direction is known, of course).
The CT-ratio must be set. in the Installation group of parameters (see below).
The I2 terminals stay free in case of the Aron (A) connection.
To get better precision when using overweighted CTs, you can apply ore windings of
easured wire through the transfor er. Then you ust set the ultiplier para eter (see
below). For standard connection with 1 winding, the ultiplier ust be set to 1.
The current signals from 5A or 1A (or 0.1A for the „X/100mA“ models) instrument current transformers
must be connected to the CURRENT connector terminal pairs I11 – I12, I21 – I22, I31 – I32 (No. 1÷6).
A particular connector is provided with a screw lock to prevent an accidental pullout and possible
unwanted disconnection of the current circuit.
A connection cable maximum cross section area is 2.5 mm2.
2.2.3 Outputs
Instruments can have up to 18 relay (“R”- models) or transistor (“T”-models) outputs. For models with
more than 9 outputs, the outputs are arranged in two output groups. The groups are isolated from
each other.
Each group has one relay common pole terminal C1, C2 ( No.15 and 25 ) and up to nine individual
relay output terminals 1.1 through 1.9 ( No.16 ÷ 24 ) for group No. 1 and 2.1 through 2.9 ( No.26 ÷
34 ) for group No. 2.
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