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Development and production of systems for measurement and control

6.7. RVC and Ripple control

The RVC threshold (or thresholds) and the RVC hysteresis are both set by the user according to the use.
Mains signaling voltage, called “ripple control signal” in certain applications, is a burst of signals, often applied at a

non-harmonic frequency, that remotely control industrial equipment, revenue meters, and other devices.

Parameter

Description

Factory setting

Setting range

RVC threshold

The RVC threshold is a percentage of Udin

3,3%

1 ... 100%

RVC hysteresis

The RVC hysteresis is a smaller percentage of Udin

1 ... 20%

Ripple -control

Adjustable by PMS

50 Hz

50 Hz ... 3 kHz

According to the norm the ideal settings is RVC threshold on 3,5% of Udin and hysteresis on 1% of Udin.

6.8. Information

Information about the vendor and device firmware version.

BMR

trading

Horní lán 17
779 00 Olomouc

Czech Republic

Tel: +420 778 066 566

[email protected]

www.bmr-trading.com

Содержание PLA44

Страница 1: ...PLA 44 Power quality analyzer User and service manual version 1 4 BMR trading Horní lán 17 779 00 Olomouc Czech Republic 1 Tel 420 778 066 566 export bmr trading com www bmr trading com ...

Страница 2: ...Voltage Change RVC 9 5 6 3 List of transients 9 5 6 4 Power cuts 9 6 Device settings 10 6 1 Language 10 6 2 Measurement 10 6 2 1 Network type 10 6 3 Analyser 12 6 3 1 Date and time 12 6 3 2 Reset 12 6 4 Communication 12 6 4 1 Ethernet 12 6 4 1 1 Web server 13 6 4 1 2 Modbus TCP 13 6 4 1 3 FTP server 13 6 4 2 RS485 13 6 4 3 Connection of PLA44 to LAN with NAT server 14 6 5 Events setting 15 6 6 Tra...

Страница 3: ...meters 2 cursor key for moving up in menu and parameter change to higher value 3 cursor key for moving down in menu and parameter change to lower value 4 ESC key for canceling or return 5 Fn zoom key change function of other buttons BMR trading Horní lán 17 779 00 Olomouc Czech Republic 3 Tel 420 778 066 566 export bmr trading com www bmr trading com ...

Страница 4: ...ss 1 Group of interharmonics I 0 99 9 0 99 9 Class 1 Group of harmonics I 0 99 9 0 99 9 Class 1 Short term flicker 0 20 0 Pst 0 20 0 Pst Class A Long term flicker 0 20 0 Plt 0 20 0 Plt Class A Under voltage 0 100 0 100 0 2 Over voltage 0 100 0 100 0 2 Unbalance U 0 100 0 100 0 15 Neutral point displacement 10 600 V 0 1 MV 0 2 K factor Unbalance I 0 5 Transients 25 μs Events 10 ms Ripple control si...

Страница 5: ...cted via circuit breaker or switch and fuse 10 A which are placed close to the device Current measuring inputs have to be connected via current transformers either 5A or 1A ratio Picture 2 Full device connection at TN C network Notice If the voltage measuring inputs are connected over the voltage measuring transformers the power of measuring transformer power must be at appropriate level Voltage m...

Страница 6: ...for activating the communication and data transfer 4 6 Temperature sensor Temperature sensor is connected directly to PLA44 inputs 20 and 21 according to the picture 2 The sensor is NTC type with resistance 10kΩ 25 C 4 7 Digital inputs outputs The instrument is equipped with two opto isolated transistor outputs inputs The outputs working mode is fully adjustable as an alarm output remotely control...

Страница 7: ...provides values for short term flicker 10 minutes long term flicker 2 hours 5 2 Harmonics 5 3 Vectors 5 4 Bar graphs Voltage current and power values can be shown in bar graph form as well Bar graphs have synchronized automatic scale which is adjusted according to min and max displayed values to provide fast and clear comparison of measured values in all phases BMR trading Horní lán 17 779 00 Olom...

Страница 8: ...form are displayed on the device screen and also web server if enabled 5 6 1 List of events Last 50 events of each type are captured in the nonvolatile memory with information about the start and end of the event and graph of the event On the device screen the event graph can be displayed with all detail information There are following type of events recorded in the PLA44 memory Type of event Desc...

Страница 9: ...C event It is a dip or a swell 5 6 3 List of transients PLA44 captures transients of voltage as short as 25 μs and keeps last 50 transients of each type in the nonvolatile memory Type of event Description Different Transients started by differential threshold defined by zone Absolute Transients started by threshold absolute value defined by set value of voltage Waveform of transient event is possi...

Страница 10: ...m frequency 50 Hz 45 75 Hz Udin Network nominal phase voltage 230 V 1V 750 kV Idin Network nominal phase current 5 A 1A 750 kA Voltage Tr Enable the usage of measuring voltage transformer No No Yes Current Tr Enable the usage of measuring current transformer No No Yes Utr Primary and secondary voltage of measuring voltage transformer 230V 230V 1 750 kV Itr Primary and secondary current of measurin...

Страница 11: ...Development and production of systems for measurement and control BMR trading Horní lán 17 779 00 Olomouc Czech Republic 11 Tel 420 778 066 566 export bmr trading com www bmr trading com ...

Страница 12: ...in software PMS For the finding the closest NTP server refer to the following link http support ntp org bin view Servers StratumOneTimeServers Parameter Description Factory settings Settings range Device time Date and UTC time in format for date YYYY MM DD and HH MM for time UTC time offset Time offset of the local time against to UTC Offset is set in seconds Daylight start Beginning of the summer...

Страница 13: ...ting range Modbus TCP Enable or disable Modbus TCP feature Yes Yes No Modbus TCP port Defines the port on which the Modbus TCP is accessible 80 6 4 1 3 FTP server Parameter Description Factory setting Setting range FTP server Reference voltage level type Yes Yes No FTP port Port of the FTP service 21 FTP name User name for access to FTP server of PLA44 device admin FTP password Password for access...

Страница 14: ... public IP address port 21 IP of PLA44 port 21 router public IP address port 50000 50005 IP of PLA44 port 50000 50005 Notice Number of port of 80 21 is possible change on router Range of ports 50000 50005 is fixed and it is not possible to change it On the PLA44 device it is necessary set following parameters in IP public FTP 21 factory value user name admin factory value password 1234 factory val...

Страница 15: ...is limited by this maximum samples memory space 6 6 Transients setting Transient setting is defined by several parameters listed in table beneath Parameter Description Factory setting Setting range Pre Samples Number of recorded samples before the transient start 768 0 8000 Post Samples Number of recorded samples after the transient start 768 0 8000 Delay time Time delay before next transient reco...

Страница 16: ...ment revenue meters and other devices Parameter Description Factory setting Setting range RVC threshold The RVC threshold is a percentage of Udin 3 3 1 100 RVC hysteresis The RVC hysteresis is a smaller percentage of Udin 1 1 20 Ripple control Adjustable by PMS 50 Hz 50 Hz 3 kHz According to the norm the ideal settings is RVC threshold on 3 5 of Udin and hysteresis on 1 of Udin 6 8 Information Inf...

Страница 17: ...cessful firmware update connect the PLA44 via Ethernet to PC where the Update software will run Enter the IP address of the PLA44 and user name and password Pressing button Connect will verify accessibility of PLA44 and prepare connection for firmware update start Important While firmware is update device should be on the stable power supply and Ethernet connection should not be removed BMR tradin...

Страница 18: ...ltage 24 VDC Maximum input consumption 10 mA Voltage transformer ratio 1 750 000 Current transformer ratio 1 750 000 Supply voltage power cuts memory 15 events Sampling rate 40 kHz Events trigger 10 ms Data memory for measured parameters 1 GB Display type and size VGA TFT 5 6 Temperature input NTC sensor 10 kΩ 25 C Communication port RS485 optional Modbus RTU 9 6 19 2 38 4 115 kBd Ethernet RJ45 10...

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