RS PRO 264-1020 Power Quality Analyser User Manual

RS PRO 264-1020 Power Quality Analyser

Specifications

• Model: 264-1020 RS PRO POWER QUALITY ANALYSER DIN96 CT CONNECTED
• Functions: Electrical variable measurement, energy metering, power quality analysis
• Extension: Two extension interfaces for connecting modules

Product Description

The 264-1020 is a power quality analyzer that offers electrical variable measurement, energy metering, and power quality analysis functions. It can be extended with I/O modules for monitoring and controlling equipment, enabling system integration with different smart electricity distribution systems and energy management systems.

Extend Modules

Points to note:

1. Two modules maximum per interface, four modules maximum for the 264-1020.
2. Only one communication module can be connected. Communication modules available are 264-1022, 264-1023, 264-1024, and 264-1025.

Measurement Variables

The 264-1020 can measure various variables including voltage, \current, frequency, power, power factor, energy consumption, harmonic content, and more. See the user manual for detailed specifications.

Real-time Measurement

The device provides real-time measurement of electrical parameters for monitoring purposes.

Energy Metering and Tariff Meter Reading

Energy metering and tariff meter reading functions allow for accurate tracking of energy consumption and cost based on predefined rates.

Power Quality

The device assesses power quality by analyzing factors such as voltage and current sequence components, unbalance, harmonic content, flicker, fluctuation, crest factor, and K factor. It provides insights into the quality of electrical power being supplied.

FAQ

• Q: Can I connect more than four modules to the 264-1020?
  • A: No, the 264-1020 supports a maximum of four modules.
• Q: What communication modules are compatible with the 264-1020?
  • A: The compatible communication modules are 264-1022, 264-1023, 264-1024, and 264-1025.

Safety Instructions

The manufacturer shall not be held responsible for failure to comply with the instructions in this manual. The equipment must be installed and serviced only by qualified personnel. Never work alone. Prior to any work on or in the equipment, isolate the voltage inputs and auxiliary power supplies，short the secondary of all CT, but never short the secondary of PT. Always use a properly rated voltage sensing device to conform that all power is off.

Risk of damaging device

• The voltage of the auxiliary power supply is beyond the rated range.
• The frequency of the power distribution system is beyond the rated range.
• The input polarity of the voltage or the current is wired improperly.

Product Description

Overview

264-1020 is equipped with electrical variable measurement, energy metering and power quality analysis functions. 264-1020 also can be extended with I/O modules for monitoring and controlling equipment at field, realizing system integration with different smart electricity distribution system and energy management system, and sharing monitoring data and energy data

Extend modules

264-1020 has two extension interfaces for connecting modules and expand functions.

• a Please take attention to the following points when connecting modules to 264-1020. Two modules for one interface at most, and four modules for 264-1020 at most;
• b Only one communication module can be connected to 264-1020. The communication modules are 264-1022, 264-1023, 264-1024, and 264-1025.

Measurement

The following list shows variables which can be measured by 264-1020 including relative variables calculated from basic electrical parameters.

Measurement variable| Instant| Max| Min| Demand| Sum| Unit
---|---|---|---|---|---|---
V1/V2/V3| ●| ●| ●| —| —| [V,kV]
V12/V23/V31| ●| ●| ●| —| —| [V,kV]
I1/I2/I3| ●| ●| ●| ●| —| [A,kA]
F| ●| ●| ●| —| —| [Hz]
P1/P2/P3| ●| —| —| —| —| [kW,MW,GW]
P| ●| ●| ●| ●| —| [kW,MW,GW]
Q1/Q2/Q3| ●| —| —| —| —| [kvar,Mvar,Gvar]
Q| ●| ●| ●| ●| —| [kvar,Mvar,Gvar]
S1/S2/S3| ●| —| —| —| —| [kVA,MVA,GVA]
S| ●| ●| ●| ●| —| [kVA,MVA,GVA]
PF1/PF2/PF3| ●| —| —| —| —| —
PF| ●| ●| ●| —| —| —
EP+/EP-| —| —| —| —| ●| [kWh,MWh,GWh]
EQ1/EQ2/EQ3/EQ4| —| —| —| —| ●| [kvarh,Mvarh,Gvarh]
THDV1/THDV2/THDV3| ●| —| —| —| —| [% ]
THDI1/THDI2/THDI3| ●| —| —| —| —| [% ]
Harmonic RMS-U (1～63th)| ●| —| —| —| —| [% ]
Harmonic RMS-I (1～63th)| ●| —| —| —| —| [% ]
Unbalance-U| ●| —| —| —| —| [% ]
Unbalance-I| ●| —| —| —| —| [% ]

Real-time measurement

Energy metering and tariff meter reading

This meter has excellent energy metering functions as follows:

• Total bi-direction active and reactive energy metering
• Phase separated bi-direction active and reactive energy metering
• Fundamental energy metering;
• Four-quadrant reactive energy metering;
• Apparent energy metering;
• Tariff energy metering

The meter shows primary value. Primary value is equal to the secondary value multiplied by voltage or current transformer ratio. Secondary value is the reference to all of the energy. The smallest resolution ratio of secondary value is 1Wh or 1varh.
The smallest resolution ratio of energy shown on meter is 0.01kWh or 0.01kvarh. The storage range of energy is secondary energy 4294967295 Wh, and the display range of energy is primary energy 99999999999 kWh (99.9 billion). The data will not exceed the range if the meter is in its mean time between failures. User can clear the energy data after entering correct password. Tariff energy: the meter has two sets of tariffs with four kinds of rates in twelve time zones. It starts energy metering in one time zone according to digital input status

Tariff energy

1. Rate number
   Rate number is used to indicate the present tariff of the working meter. T 1 indicates Tip rate; T2 indicates Peak rate; T3 indicates Flat rate; T4 means valley rate.

2. Time period
   One day can be divided into 12 time periods at most in the meter. The time period must be continuous, which means end time of the first time period is start time of the second time period.

3. Rate schedule
   Different rate schedules can be preset in the meter. They can perform different tariff in the specified time period. Up to 4 rates can be preset. During programming, rate schedule number is used to indicate what tariff that the meter performs. 1 indicates the first rate schedule.

4. Holiday
   Holiday includes regular holidays (22 days）and irregular holidays (60 days), a total of 82 days. Regular holidays means the same annual holiday that nation has stipulated, such as January 1st, May 1st, etc. It can be set according to the requirement.
   Irregular holiday means annual holidays stipulated by different nations, such as Spring Festive (February, 9th, 2005). It can be set according to the requirement. The tariff for holiday can be any one in the four tariffs.

5. Weekly tariff
   Each of the four rates is available for seven days in a week.

6. Monthly tariff
   Each of the four rates is available for each month.

7. Priority order of tariff
   There are two modes to perform tariffs: holiday tariff and monthly tariff. In holiday tariff mode, the holiday tariff will be performed if the day is holiday, otherwise the weekly tariff will be performed. In monthly tariffmode, it will be performed according to the rate schedule that is set monthly.

Power quality

The 264-1020 can monitor and analyze power quality of gird and measure the following variables: Three phase voltage and current sequence component and unbalance Electrical variables in three phase system can be divided into positive sequence component, negative sequence component and zero sequence component according to symmetrical component method. If electric system is in normal operation mode, the ratio between negative sequence component RMS value and positive sequence component RMS value is defined as three phase unbalance of an electrical variable

264-1020 shows three phase voltage and current phase angles. L1 voltage angle is defaulted as 0°. Other phase angles are shown phase difference relative to L1 voltage. Unit: °

• Measuring 2nd to 63rd harmonics;
• Showing voltage and current bar graph.

Demand record

264-1020 has six independent demand recording channels to measure and record max demand, present demand and previous demand of three phase current, total active power, total reactive power and total apparent power.

Event record

Event record includes the total times and latest occurrence time of power on record, parameter modification record, over current record and so on.

Help information

The page shows software version and module status.

Extend module

• 264-1020 has two extension interfaces for connecting modules and expand functions.

Digital input and relay output of 264-1020

• 264-1020 has two digital inputs and two relay outputs.

Digital input（RI-A5ACDI, RI-A5DCDI）

• RI-A5ACDI module has digital input adopting wet contact mode to measure AC 220V signal.
• RI-A5DCDI module has digital input adopting dry contact mode which gets power supply from inside of meter and with no need for external power supply.
• Digital input supports three working modes:
• Status monitoring: the meter receives the status of terminal node and shows it on the window. It also shows the newest status immediately when the status of terminal node changes.
• Pulse counting: the meter receives and counts up the number of pulses from terminals. It adds by one when it receives one pulse.
• Spare energy: meter starts accumulating spare energy and stops accumulating total energy at the same time when it detects that the digital input becomes closed.

Relay output（RI-A5RO5A）

• 264-1020 has two relay outputs. RI-A5RO5A module is used to add more relay outputs to meter.
• 264-1020 relay outputs have two working modes: remote control and off-limit alarm. RI-A5RO5A module relay outputs have two working modes: remote control and off-limit alarm. Working mode, alarm item and alarm range of each relay output can be set in programming. As for detailed information about relay output setting, please refer to Appendix 2.

Notice:

Remote control If user needs to remotely control relay output, please set the working mode as “Remote”. Set delay as electrical level mode or set delay time as N * 100ms.
Off-limit alarm Set relay output as “Alarm” mode, “Mode” is used to select an electrical variable, “Delay” is used to set alarm delay time, “Value” is used to set alarm limit value, “Reset” is used to set alarm recovery threshold value for electrical variable.

Analog input module（RI-A5DCAI）

RI-A5DCAI module is used to measure 4~20mA signal. The measurement display page is shown as follows

Analog input module（264-1021）

264-1021 module is used to measure PT100 signal. The measurement display page is shown as follows

Analog output module（RI-A5DCAO）

Analog output module can transfer instantaneous electrical variables to DC current signal output. If analog output module is connected to meter, the corresponding display page will be shown on meter. Current value shown in the page is theoretical output value in present status. Analog output item and range can be set through meter

Installation and wiring

Dimension

Installation

1. Choose a right place on the fixed distribution cabinet for cutout by size 91×91mm;
2. Take off the supporting clips of the meter;
3. Insert the meter into the cutout;
4. Insert and push the supporting clips to fix the meter.

Wiring

Typical wiring

Note:

• Auxiliary power supply：AC/DC (80～270)V
• Rated current of fuse：0.5A

Signal wiring diagram

Wiring instruction:

• (a) External wiring method must be the same with the inner wiring method of the meter. Otherwise the measured data will be incorrect.
• (b) Voltage and current signals must be AC signals. Please do not connection DC signals to input terminals.
• (c) Voltage input: make sure the input voltage in not higher than the rated voltage of the meter, otherwise, please connect external PT to the meter. If external PT is adopted, the accuracy of meter will depend on the accuracy of external PT. Please make sure the accuracy of external PT is equal to or better than that of meter. For your convenient maintenance, please adopt wiring terminal row.
• (d) Current input: make sure the input current in not higher than the rated current of the meter, otherwise, please connect external CT to the meter. If external CT is adopted, the accuracy of meter will depend on the accuracy of external CT. Please make sure the accuracy of external CT is equal to or better than that of meter. If there is more than one meter connected to the CT, please connect them in serial. Before removing the current input wires of the meters, make sure to cut off the first loop of CT or short connect its second loop. For your convenient maintenance, please adopt wring terminal row.
• (e) Make sure voltage and current of three phases corresponding to each other, which means the phase sequence and direction are same. Otherwise, the numbers and signals will be incorrect (power and energy).

Operation

Panel

• A: Display window B: Function indication for keys C: Touch type keys

Setup

Signs for keys and corresponding functions

User can set parameters for meter through keys.

The method of changing numbers

• Click to select a bit, click to add number at selected bit
• Enter and exit programming status
  Enter programming mode: Click select “System setting” in main interface, and then click enter the programming interface. Select “User” and input correct password to enter parameter setting mode. (The programming password is defaulted as 1000 in factory. User can change the password.).

Exit programming mode: return to first level of menu at first, and then click

• The meter will indicate whether to save modified data or not at this
  step. If “Yes” is selected, the meter will save modified data and return to main interface; if “No” is selected, the meter will cancel modified data and return to main interface.

Programming and setting the menu

The programming and setting menu adopts a hierarchical mode. 5.2.1 Basic parameter setting

Signal input setting

Communication setting

Electrical variables for alarm are shown in the following list:

DI

|

0/1

| Switching linkage action, relay acts according to digital input status. If it is 0, relay closes when digital input is 0; if it is 1, relay closes when digital input is 1.
X4.PT L|

xxx.x ℃

| X4 low temperature alarm for any loop

X4.PT H

|

X4 high temperature alarm for any loop

xxxx

| Present demand S <
dmd.S >| Present demand S >
dmd.Q <| Present demand Q <

dmd.Q >

|

Present demand Q >

dmd.P <| Present demand P<
dmd.P >| Present demand P>
dmd.I <| x.xxx| Present demand I <
dmd.I >| _A| Present demand I >
---|---|---
dmd.I3 <| Present demand I3<
dmd.I3 >| Present demand I3>
dmd.I2 <| Present demand I2<
dmd.I2 >| Present demand I2>
dmd.I1 <| Present demand I1<
dmd.I1 >| Present demand I1>
THDi <|

xx.xx%

| Current harmonic distortion rate low alarm
THDi >| Current harmonic distortion rate high alarm

THDv <

|

Voltage harmonic distortion rate low alarm

THDv >| Voltage harmonic distortion rate high alarm
Iunb <|

xxx.x %

| Current unbalance low alarm
---|---|---
Iunb >| Current unbalance high alarm

Vunb <

|

Voltage unbalance low alarm

Vunb >| Voltage unbalance high alarm
F <|

xx.xx Hz

| Grid frequency low alarm
F >| Grid frequency high alarm
PF <|

x.xxx

| Total power factor low alarm

PF >

|

Total power factor high alarm

S <| xxxx

_VA

| Total apparent power low alarm
S >| Total apparent power high alarm
Q <| xxxx

_var

| Total reactive power low alarm
Q >| Total reactive power high alarm
P <| xxxx

_W

| Total active power low alarm
P >| Total active power high alarm
Io <|

x.xxx

_A

| Zero-sequence current low alarm
Io >| Zero-sequence current high alarm
Iavg >| Current average value low alarm
Iavg <| Current average value high alarm
I <| | One of three phase currents low alarm
I >| One of three phase currents high alarm
I3 <| I3 low alarm
I3 >| I3 high alarm
I2 <| I2 low alarm
I2 >| I2 high alarm
I1 <| I1 low alarm
I1 >| I1 high alarm
Vllavg <| xxx.x

_V

| Line voltage average value low alarm
Vllavg >| Line voltage average value high alarm
Vlnavg <| | Phase voltage average value low alarm
---|---|---
Vlnavg >| Phase voltage average value high alarm
Vll <| One of three line-voltages low alarm
Vll >| One of three line-voltages high alarm
V31 <| V31 voltages low alarm
V31 >| V31 voltages high alarm
V23 <| V23 voltages low alarm
V23 >| V23 voltages high alarm
V12 <| V12 voltages low alarm
V12 >| V12 voltages high alarm
Vln <| One of three phases voltages low alarm
Vln >| One of three phases voltages high alarm
V3 <| V3 voltages low alarm
V3 >| V3 voltages high alarm
V2 <| V2 voltages low alarm
V2 >| V2 voltages high alarm
V1 <| V1 voltages low alarm
V1 >| V1 voltages high alarm

Limit value setting

Time setting and meter reading time

There are two demand measurement modes which are slip and fixed. The relative time parameters are set as t (updating time) and T (time zone).

• Slip: meter calculates average demand during latest T minutes every t seconds, tests and records the value, automatically reads the demand every month；
• Fixed: meter calculates average demand during latest T minutes after T minutes, tests and records the value, automatically reads the demand every month.
• Note: calculation method in upper pictures takes 15min as example.

Monthly tariff setting

Daily tariff setting

Example for programming operation

Suppose the wiring method of meter is three phase four wire and primary voltage is 10KV, change the wiring method to be three phase three wire and change primary voltage to be 6000V, the programming operation process is as follows

Communication

Meter is defaulted to be equipped with one communication, RS-485 interface, Modbus-RTU protocol. It also can be extended with one communication by connecting with a module.

Technical specifications

Electric Characteristics

Accuracy

| Voltage and current| 0.2%
| Power, Power Factor| 0.2%
---|---|---
Frequency| ±0.01Hz
Active power| IEC62053-22, class 0.2S
Reactive power| IEC62053-23, class 2
Data update rate| 1s

Input

| Wiring mode| 1P2W、3P3W、3P4W

Voltage

| Rated value| 400 VAC L-N (690 VAC L-L)
Overload| 1.2Vln
Impedance| >1MΩ

Current

| Rated value| 1A or 5A

Overload

| Continuous: 1.2In
Instantaneous: 10In/5s
burden| <0.1VA
Rated value| <20mΩ
Grid frequency| (45～65)Hz
Auxiliary supply| Working range| AC/DC（80～270）V
consumption| ≤ 10VA

Energy pulse output

| 1      optocoupled     output, (80±20%) mS| pulse| width
Digital input| AC220V input, isolation：2000VAC
Relay output| Contact rated at AC 250V/5A or DC 30V/5A
| Isolation： 2500VAC
---|---
Communications
RS485 port| Modbus-RTU , 2-wire,up to 38400bps
Mechanical Characteristics
IP index| IP65（front panel）and IP20（meter body）
Dimensions| 96×96×55mm
Environmental Characteristics

Operating temperature| (-10～60)℃
Storage temperature| (-25～70)℃
Relative humidity| (5～95)% (no gel)
Insulation| IEC 61010-1
Electromagnetic Compatibility
Immunity to electrostatic discharge| IEC 61000-4-2-Level III
Immunity to radio-frequency field| IEC 61000-4-3- Level III
Immunity       to       electrical      fast transients/bursts| IEC 61000-4-4- Level Ⅳ
Immunity to impulse waves| IEC 61000-4-5- Level Ⅳ
Immunity to conducted disturbances| IEC 61000-4-6- Level III
Immunity     to     power     frequency magnetic fields| IEC 61000-4-8- Level III
Immunity to voltage dips and short interruptions| IEC 61000-4-11- Level III
Module
RI-A5ACDI| 2 AC digital input
RI-A5DCDI| 4 digital inputs
---|---
RI-A5RO5A| 2 relay outputs
RI-A5DCAI| 2 analog inputs：mA
264-1021| 2 analog inputs：PT100
RI-A5DCAO| 2 analog outputs：mA
264-1022| RJ45, Modbus/TCP
RI-A5PROF| DB9, Profibus-DP
RI-A5WIFI| WIFI: Modbus/TCP
RI-A5GPRS| GPRS: Modbus/TCP, SMS
RI-A5RS485| RS485, Modbus-RTU
264-1023| M-Bus communication
264-1024| BACnet/MSTP communication
264-1025| BACnet/IP communication
RI-A5RS232| RS232, Modbus-RTU

The information in this document is subject to change without further notice

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