Iskra PNA 784 User manual

Quick Guide
Portable Network Analyzer PNA784 - Quick Guide
I

Quick Guide
Portable Network Analyzer PNA784 - Quick Guide
I


Table of Contents
Portable Network Analyzer PNA784 - Quick Guide
III
Table of Contents
Meaning of symbols see page 5!
1SECURITY ADVICE AND WARNINGS .......................................................................................1
1.1 WELCOME .............................................................................................................................................. 1
1.2 INTRODUCTION ........................................................................................................................................ 1
1.3 HEALTH AND SAFETY.................................................................................................................................. 1
1.4 SAFETY WARNINGS AND INSTRUCTIONS FOR USE ............................................................................................. 1
1.5 WARNINGS,INFORMATION AND NOTES REGARDING DESIGNATION OF PORTABLE NETWORK ANALYZER PNA784 ....... 3
2BASIC DESCRIPTION AND OPERATION OF PORTABLE NETWORK ANALYZER PNA784 ............. 5
2.1 INTRODUCTION ........................................................................................................................................ 5
2.2 DESCRIPTION OF THE PORTABLE NETWORK ANALYZER PNA784........................................................................ 6
2.3 METER FUNCTIONALITY.............................................................................................................................. 7
3CONNECTION ...................................................................................................................... 13
3.1 INTRODUCTION ...................................................................................................................................... 13
3.2 ELECTRIC CONNECTION ............................................................................................................................ 13
MEASUREMENT INPUTS ........................................................................................................................................ 19
3.3 CONNECTION OF COMMUNICATION............................................................................................................ 20
3.4 RECORD BUTTON .................................................................................................................................... 21
3.5 CONNECTION OF AUXILIARY POWER SUPPLY ................................................................................................. 21
4MORE DATA........................................................................................................................ 23

Security advice and warnings
Portable Network Analyzer PNA784 - Quick Guide
1
1SECURITY ADVICE AND WARNINGS
1.1 Welcome
Please read this chapter carefully before starting work with a Portable Network Analyzer PNA784.
This chapter deals with important information and warnings that should be considered for safe
work with a Portable Network Analyzer PNA784.
1.2 Introduction
These instructions for use are written for the Portable Network Analyzer PNA784. Installation and
use of Portable Network Analyzer PNA784 also includes work with dangerous currents and
voltages, therefore such work shall be carried out by qualified persons. ISKRA d.d. Company
assumes no responsibility in connection with installation and use of the product. If there is any
doubt regarding installation and use of the system in which the instrument is used for measuring or
supervision, please contact a person who is responsible for installation of such system.
1.3 Health and safety
The purpose of this chapter is to provide a user with information on safe installation and handling
with the product in order to assure its correct use and continuous operation.
We expect that everyone using the product will be familiar with the contents of chapter »Security
Advices and Warnings«.
If equipment is used in a manner not specified by the manufacturer, the protection provided by the
equipment may be impaired.
1.4 Safety warnings and instructions for use
Check the following before switching on the Portable Network Analyzer PNA784:
−Nominal voltage,
−Supply voltage,
−Nominal frequency,
−Voltage ratio and phase sequence,
−Current transformer ratio and terminals integrity,
−Protection fuse for voltage inputs (recommended maximal external fuse size is 6 A)
−External switch or circuit-breaker must be included in the installation for disconnection of the
devices’ aux. power supply. It must be suitably located and properly marked for reliable
disconnection of the device when needed.
−Integrity of earth terminal
−Proper connection and voltage level of I/O modules

Security advice and warnings
2
Portable Network Analyzer PNA784 - Quick Guide
Warning for the Portable Network Analyzer PNA784 connection and disconnection
-Before use, check the Portable Network Analyzer PNA784, measuring voltage connection wires
and accessories visually and make sure that there are no visible damages before use. Replace
damaged measuring voltage connection wires and accessories with new ones of the same
quality. Use only insulated current probes, safety measuring voltage connection wires and
safety alligator clip terminals that are equal to those enclosed to the Portable Network
Analyzer PNA784.
-For earthing the Portable Network Analyzer PNA784, use a special input terminal and do not
connect live parts.
-Do not connect input voltages that exceed values specified for the Portable Network Analyzer
PNA784. Maximum permitted voltage on safety voltage terminals towards ground:
Input L1, L2, L3, N towards GND is 600 V Cat III.
-Do not connect input currents that exceed values specified for the Portable Network Analyzer
PNA784. Maximum permitted current on current inputs K/L I1, K/L I2, K/L I3 and K/L IN is 12.5A.
-When mounting flexible current probes and safety measuring voltage connection wires with
safety alligator clip terminals to the measuring object be careful to disconnect power supply on
non-insulated conductors or use corresponding protection equipment (gloves, etc.) If possible,
do not work alone.
-Do not use the Portable Network Analyzer PNA784 near explosive gasses and vapors.
-Do not insert metal parts in safety connection terminals and connectors.
-Do not hang/mount Portable Network Analyzer PNA784 by the attached connections
(cables).
Waste
It is forbidden to deposit electrical and electronic equipment as municipal waste. The manufacturer
or provider shall take waste electrical and electronic equipment free of charge. The complete
procedure after lifetime should comply with the Directive 2002/96/EG about restriction on the use
of certain hazardous substances in electrical and electronic equipment or a corresponding Url
118/04.

Security advice and warnings
Portable Network Analyzer PNA784 - Quick Guide
3
1.5 Warnings, information and notes regarding designation of Portable
Network Analyzer PNA784
Used symbols:

See Power Portable Network Analyzer PNA784 documentation.

Double insulation in compliance with the EN 61010−1 standard.

Functional ground potential.
Note: This symbol is also used for marking a terminal for protective
ground potential if it is used as a part of connection terminal or
auxiliary supply terminals.

Compliance of the product with directive 2002/96/EC, as first priority,
the prevention of waste electrical and electronic equipment (WEEE),
and in addition, the reuse, recycling and other forms of recovery of
such wastes
so as to reduce the disposal of waste. It also seeks to
improve the environmental performance of all operators involved in
the life cycle of electrical and electronic equipment.

Compliance of the product with European CE directives.
The delivery includes:
−Portable Network Analyzer PNA784
−5 safety measuring voltage connection wires (4 x Voltage inputs, 1 x Ground input)
−8 safety measuring current connection wires
−5 safety alligator clip terminals
−A1287 single phase flex current clamps ( + power supply cable)
−A1257 three phase flex current clamps ( + power supply cable)
−USB cable
−Ethernet cable (non-GPRS version)
−MiQen software on CD
−Power supply cable
−Quick guide for Portable Network Analyzer PNA784
−Flex current clamps A1287 User Manual
−Flex current clamps A1179/A1257/A1395 User Manual

Basic description and operation of Analyzer
Portable Network Analyzer PNA784 - Quick Guide
5
2BASIC DESCRIPTION AND OPERATION OF PORTABLE NETWORK
ANALYZER PNA784
2.1 Introduction
Description of symbols
In different chapters or tables different symbols may appear in Quick guide. According to the
position of symbols, they have different meaning.
Chapter
Meaning of each symbol is:
− Function not supported
− Function partially supported (see a note)
− Function completely supported
Positions follow from left to right:
Subchapter
Symbols next to the subchapters indicate accessibility of functions described. Accessibility of
functions is indicated with the following symbols:
− Function accessible via communication (MiQen software)
− Function accessible via navigation keys on the instrument front side
Tables
Supported functions and measurements are listed in tables for all types. Symbols in tables indicate
support of enabled functions for each type. Additionally a legend is placed below table of used
symbols. Meaning of symbols is:
●− Function is supported
×− Function is not supported
○− Symbol meaning varies and is described in the legend below the table

Basic description and operation of Analyzer
6
Portable Network Analyzer PNA784 - Quick Guide
2.2 Description of the Portable Network Analyzer PNA784
Portable Network Analyzer PNA784 is a portable device intended for monitoring of power quality
from its production, transmission, distribution all the way to the final consumers, which are most
affected by inadequate voltage quality. It is mostly applicable in medium and low voltage
applications.
Lack of information regarding supplied voltage quality can lead to unexplained production
problems and malfunction or can even damage equipment being used during factory production
process. Therefore, Portable Network Analyzer PNA784 can be used for the needs of electrical
utilities (evaluation against standards) as well as for industrial purposes (e.g. for monitoring the
level of supplied power quality).
Appearance
1 – Color TFT display
2 – Navigation keyboard
Color TFT display
5.7 inch color TFT display is used for displaying measuring quantities and for a display of selected
functions when setting the Power Quality Analyzer iMC784.
Navigation keyboard
The "Enter" key is used for confirming/selecting the settings. Direction keys are used for navigating
between screens and menus. Function of individual key may vary depending on the selected
screen.

Basic description and operation of Analyzer
Portable Network Analyzer PNA784 - Quick Guide
7
2.3 Meter functionality
General hardware Features Default / Optional
General
Class A measuring accuracy (0.1%) according to EN 61000-4-30 Ed.3
●
Voltage auto range up to 1000Vp-pRMS
●
Current auto range up to 12.5 A
●
4 voltage and 4 current channels with 32 us sampling time
●
Auxiliary power supply
●
Two independent communication ports (see data below)
○
Support NTP real time synchronization
●/ ●/ ●
Up to 20 additional inputs and outputs (see data below)
○
Internal flash memory (8MB+8GB)
●
Real time clock (RTC)
●
Front panel
5.7 inch color TFT display (iMC784)
●
Control keys on front panel (5 keys)
●
Communication
COM1: Ethernet + USB
●
●
Function is supported (default)
○
Optional (to be specified with an order)
General software Features Default / Optional
EN 50160 power quality evaluation
●
Automatic PQ report generation
●
Disturbance, trend & PQ event recording
●
Waveform recorder with programmable sampling time (max 625 samples / cycle)
●
Standardized PQDIF and COMTRADE format support
●
MiQEN user friendly setting & analysis software
●
Setup wizard
●
Wrong connection warning
●
Custom screen settings (3 user defined screens on LCD)
●
Programmable refresh time
●
MODBUS and DNP3 communication protocols
●
MD calculation (TF, FW, SW)
●
Wide frequency measurement range 16 – 400 Hz
●
Programmable alarms (32 alarms)
●
Alarms recording
●
Measurements recording (128 quantities)
●
Measurements graphs (time / FFT)
●
Evaluation of voltage quality in compliance with EN 50160
●
NTP real time clock synchronization
●
EN61850 Ed.2 Server
○
●
Function is supported (default)
○
Optional (to be specified with an order)

Basic description and operation of Analyzer
8
Portable Network Analyzer PNA784 - Quick Guide
Supported measurements
Meas. type Measurement
3-phase
4-wire
3-phase
3-wire
1-phase comments
Phase
Voltage
measurements
U1-3_RMS


U
AVG_RMS


Uunbalance_neg_RMS


Uunbalance_zero_RMS

U1-3_DC


DC component of phase voltages
U0_Zero_sequance_RMS


Zero sequence voltage
U1_Positive_sequence_RMS


Positive sequence voltage
U2_Negative_sequence_RMS


Negative sequence voltage
Current
I1-3_RMS



ITOT_RMS



IAVG_RMS



Iunbalance_RMS


Iunbalance_zero_RMS


I0_Zero_sequance_RMS


Zero sequence current
I1_Positive_sequence_RMS


Positive sequence current
I2_Negative_sequence_RMS


Negative sequence current
Power
P1-3_RMS


PTOT_RMS



Q1-3_RMS


Reactive power can be calculated as a squared
difference between S and P or as sample delayed
QTOT_RMS



Qbt_RMS


Budeanu reactive power Total
Qb1-3_RMS


Budeanu reactive power Phase
S1-3_RMS


STOT_RMS



Dt_RMS


Deformed power Total
D1-3_RMS


Deformed power Phase
PF1-3_RMS


dPFt_RMS


Displacement Power Factor Total
dPF1-3_RMS


Displacement Power Factor Phase
ϕ1-3_RMS


Harmonic analysis
THD-U1-3


THD-I1-3



TDD-I1-3



U1-3_harmonic_1-63_%


% of RMS or % of base
U1-3_harmonic_1-63_ABS


U1-3_harmonic_1-63_
ϕ


U1-3_inter-harmonic_%


Monitoring up to 10 different fixed frequencies
U1-3_inter-harmonic_ABS


U1-3_inter-harmonic_1-63_%


% of RMS or % of base
U1-3_inter-harmonic_1-63_ABS


U1-3_signaling_%


Monitoring of signaling (ripple) voltage of set
frequency. % of RMS or % of base
U1-3_signaling_ABS



Basic description and operation of Analyzer
Portable Network Analyzer PNA784 - Quick Guide
9
Meas. type Measurement
3-phase
4-wire
3-phase
3-wire
1-phase
comments
Phase
Harmonic analysis
measurements
I1-3_harmonic_1-63_%



% of RMS or % of base
I1-3_harmonic_1-63_ABS



I1-3_harmonic_1-63_ϕ



I1-3_inter-harmonic_%



Monitoring up to 10 different fixed frequencies
I1-3_inter-harmonic_ABS



I1-3_inter-harmonic_1-63_%



% of RMS or % of base
I1-3_inter-harmonic_1-63_ABS



I1-3_signaling_%


Monitoring of signaling (ripple) current of set
frequency. % of RMS or % of base
I
1-3_signaling_ABS


Flickers
Pi1-3 
Instantaneous flicker sensation measured with
150 samples / sec (original sampling is 1200
samples / sec)
Pst1-3


10 min statistical evaluation (128 classes of CPF)
Plt1-3


Derived from 12 Pst acc. to EN 61000-4-15
Miscellaneous
K-factor1-3



Current Crest factor I1-3



Voltage Crest factor U1-3



Phase to
Voltage
phase
Upp1-3_RMS


measurements
UppAVG_RMS


THD-Upp1-3


ϕx-y_RMS

Phase-to-phase angle
Upp1-3_harmonic_1-63_%



% of RMS or % of base
Upp1-3_harmonic_1-63_ABS



Upp1-3_harmonic_1-63_ϕ



Upp1-3_interharmonic_1-63_%



% of RMS or % of base
Upp1-3_interharmonic_1-63_ABS



Uunderdeviation



U
under.
and U
over.
are calculated for phase or phase-
to-phase voltages regarding connection mode.
Uoverdeviation



Voltage Crest factor
Upp1-3

Flickers
Pi_pp1-3

Phase-to-phase flickers.
Pst_pp
1-3

Plt_pp1-3

Metering
Energy
Counter E1-8



Each counter can be dedicated to any of four
quadrants (P-Q, import-export, L-C). Total energy
is a sum of one counter for all tariffs. Tariffs can
be fixed, date/time dependent or tariff input
dependent
E_TOT_1-8



Active tariff 

Basic description and operation of Analyzer
10
Portable Network Analyzer PNA784 - Quick Guide
Meas. type Measurement
3-phase
4-wire
3-phase
3-wire
1-phase
comments
Auxiliary
Aux. line
Channel
measurements
UNEUTRAL-EARTH 
Aux. voltage is dedicated for neutral-earth meas.
only
INEUTRAL_meas


Measured neutral current with 4th current input
INEUTRAL_calc



Calculated neutral current
INEUTRAL_err 
Error neutral current (difference between
measured and calculated)
Maximum
Maximum demand
demand
MD_I1-3


1ph
measurements
MD_Pimport



MD_Pexport



MD_Qind



MD_Qcap



MD_S



Min and max
Min and max
measurements
U1-3_RMS_MIN

1ph
U1-3_RMS_MAX

1ph
U0_Zero_sequance_RMS_MIN


Max/Min Zero sequence voltage
U0_Zero_sequance_RMS_MAX


U1_Positive_sequence_RMS_MIN


Max/Min Positive sequence voltage
U1_Positive_sequence_RMS_MAX


U2_Negative_sequence_RMS_MIN


Max/Min Negative sequence voltage
U2_Negative_sequence_RMS_MAX


Upp1-3_RMS_MIN



Upp1-3_RMS_MAX



I1-3_RMS_MIN


1ph
I1-3_RMS_MAX


1ph
INEUTRAL_meas _RMS_MIN



INEUTRAL_meas _RMS_MAX



I0_Zero_sequance_RMS_MIN


Max/Min Zero sequence current
I0_Zero_sequance_RMS_MAX


I
1_Positive_sequence_RMS_MIN


Max/Min Positive sequence current
I1_Positive_sequence_RMS_MAX


I2_Negative_sequence_RMS_MIN


Max/Min Negative sequence current
I2_Negative_sequence_RMS_MAX



Basic description and operation of Analyzer
Portable Network Analyzer PNA784 - Quick Guide
11
Meas. type Measurement
3-phase
4-wire
3-phase
3-wire
1-phase
comments
Min and max
P1-3_RMS_MIN

1ph
measurements
P1-3_RMS_MAX

1ph
PTOT_RMS_MIN


1ph
PTOT_RMS_MAX


1ph
Qbt_RMS_MIN


Max/Min Budeanu reactive power Total
Qb
t_RMS_MAX


Qb1-3_RMS_MIN


Max/Min Budeanu reactive power Phase
Qb1-3_RMS_MAX


S1-3_RMS_MIN

1ph
S1-3_RMS_MAX

1ph
STOT_RMS_MIN


1ph
STOT_RMS_MAX


1ph
Dt_RMS_MIN


Max/Min Deformed power Total
Dt_RMS_MAX


D1-3_RMS_MIN


Max/Min Deformed power Phase
D1-3_RMS_MAX


dPFt_RMS_MIN


Max/Min Displacement Power Factor Total
dPFt_RMS_MAX


dPF1-3_RMS_MIN


Max/Min Displacement Power Factor Phase
dPF1-3_RMS_MAX


freqMIN



freqMAX



Other
Miscellaneous
measurements
Internal temp.



Date, Time



Last Sync. time



UTC

Connection
Portable Network Analyzer PNA760 - Quick Guide
13
3CONNECTION
3.1 Introduction
This chapter deals with the instructions for Portable Network Analyzer PNA784 connections. Both
the use and connection of the device includes handling with dangerous currents and voltages. Only
a qualified person shall therefore perform connection. ISKRA d.d. does not take any responsibility
regarding the use and connection. If any doubt occurs regarding connection and use in the system
which device is intended for, please contact a person who is responsible for such installations.
Before use: Check voltages and phase rotation, supply voltage and nominal frequency.
Check protective fuse rating (the recommended maximum rating of the external protective fuse for
this equipment is 4A-slow).
WARNING
Wrong or incomplete connection of voltage or other terminals can cause non-
operation or damage
to the Portable Network Analyzer PNA784.
PLEASE NOTE
After connection, settings have to be performed via a keyboard on the front side of the device that
reflects connection of device to voltage network (connection mode, current and voltage
transformers ratio …).
Portable Network Analyzer PNA784 is also configurable via communication.
Remove protection foil from a display.
3.2 Electric connection
Connection
If possible, switch off a measuring object. Always consider safety instructions and avoid working
alone.
Apply auxiliary power supply, select corresponding connection from the figures listed below and
connect corresponding voltage and current inputs.
Current inputs
Setting up current range on Portable Network Analyzer PNA784:
Choose a primary side of a current range on the Portable Network Analyzer PNA784 corresponding
to selected current range on A1257/A1287 flex current clamps. There are three current ranges and
they refer to A1257/A1287 flex current clamps. Current range can be entered by means of the keys
on the Portable Network Analyzer PNA784 or via communication on PC (for more information
please refer to Power Quality Analyzer MC784/iMC784 user’s manual, chapter CONNECTION >
Connection).

Connection
14
Portable Network Analyzer PNA784 - Quick Guide
Setting up current range on A1257/A1287 flex current clamps:
Choose the same current range for A1257/A1287 flex current clamps as for the Portable Network
Analyzer PNA784. Choose a current range by pressing a blue key. The selected measuring range is
indicated with a red LED on the A1257/A1287 flex current clamps interface. Move within
measuring ranges by pressing a blue key. To switch off A1257/A1287 flex current clamps, keep
pressing a blue for 5 seconds. Portable Network Analyzer PNA784 is adapted to A1257/A1287 flex
current clamps, therefore no other clamps may be used, otherwise the Portable Network Analyzer
PNA784 could be damaged.
Example: Setting up current range to 30A on A1257/A1287 flex current clamps corresponds to 30A
primary and 5A secondary current range on the Portable Network Analyzer PNA784.
Apart from A1257/A1287 flex current clamps, external measuring current transformers (X/5A),
measuring current clams (X/5A) or direct connection (max 12.5A) can be connected to Portable
Network Analyzer PNA784.
PLEASE NOTE
Current clamps bridges have to be inserted when using A1257/A1287 flex current clamps. Using
external current transformers (X/5A), current clamps (X/5A) or direct connection (max 12.5A),
these bridges have to be removed unless summation of both inputs is required (flex current clamps
+ external current transformer/current clamps. Transformation ratio of flex current clamps has to
be the same as transformation ratio of external current transformer/current clamps. In cases like
this, we advise usage of A1122 X/5A /1A flex current clams, which can be connected to secondary
side of any transformer. To achieve proper summation of both current inputs, transformation ratio
of both inputs has to be the same
). Wrong connection of current clamps
can also be solved by
rearranging current clamps bridges (rearranging is not possible when using external current
transformer or current clamps).
WARNING
Do not connect current or voltage sources to current clamps bridges.
Examples of electric connections
Three phase, four wire connection with unbalanced load
Connect wires and flex current clamps in a three-phase system in compliance with figure 3.3.
First connect the earth terminal to the Portable Network Analyzer PNA784 and connect it with the
earth terminal on a measuring object.
Then connect supply for A1257/A1287 flex current clamps. A supply output from the Portable
Network Analyzer PNA784 for A1257/A1287 flex current clamps is provided - inscription CLAMPS
12VDC. Connect this output with input for supplying A1257/A1287 flex current clamps by means of
the enclosed connection cable. Then connect current terminals of A1257/A1287 flex current
clamps to current terminals on the Portable Network Analyzer PNA784. Designations I1, I2, I3 are