FAQ

DRAN-VIEW 7

What is a HASP key?
The HASP key is the user’s registration that enables drivers in the software.
Is there a function to measure frequency of PF capacitor ring wave, instead of manually measuring the period (T) and calculating f=1/T?

1. Select tab -- Delta

 

2. Using the Delta tool, select one cycle of the waveform you want to measure frequency.

 

3. Put cursor over the text box.

 

4. Right-click and select properties.

5. Select “1/Time (Hz)” and click OK.

6. Measurement will change from time to Hz.

 

 

How to determine the direction of power flow?

See the formulas below.  If power is shown “+” on Dranetz PX5/HDPQ, that means power is flowing in the direction of the arrow on the CT.  If power is flowing opposite arrow on CT, then instrument show power with “- “sign.


 

PQVIEW®

How to set up meter time zone in PQView 4?
Can PQView Web run on a Secure Sockets Layer (https:// connection)?
Yes, as I showed you in class, you can visit Electrotek’s live PQView Web at https://pqweb4.electrotek.com
Can more than one PQDMS be connected to an instrument and poll (download) data simultaneously?
If the device supported this functionality, it should be feasible. Most devices only support one connection at a time, though. Also, you would want to ensure that the two PQDMSs were on two different systems. Otherwise, you could be trying to load the same data at the same time into the database, and that could be an issue.
PQView Web allows events to be manually tagged by engineer.  These are known as “system events”.  Can we search on the details which are manually entered?

To access the menu, select Analytics à System Events, and select the “Filters” tab:

 

Correct, this allows the user to search/filter on the test that has been entered in the System Event Details.  This isn’t the screen where you insert that information. Right now, the only way to edit system events is via PQDM. (The PQView .exe software I quickly went over at the end of the class).


Both sags and swells are listed as RMS variations in PQView event list.  In ESS they are listed as sags or swells.  Is there a plan to have PQView differentiate between the two?

 

No, this is not a plan, as PQView has always displayed these as “RMS Variations.” You can easily see the difference between a sag and swell as you indicated by looking at the percentage. Additionally, it’s very simple to filter out one or the other using the Options tab.

 

System --> Edit sites allows UTC offset and DST to be set for each monitor.  Do these settings have any effect on the event timestamp, or are they only labels and nothing more?

These values should affect the times of events and data logs presented in PQWeb and PQDA.

 

Besides using an email to SMS service, how else is it possible for PQView to generate an alert? (i.e. direct connection to a GMS modem, air card, etc.)

Email is the only supported notification at this time. We have discussed and looked into other options. Our plan has been to support one or more 3rd party messaging platforms such as Twilio, however this is still in the discussion/design phase and likely won’t be available for some time.

What ION models can be read directly by PQDMS?

Any ION meter that communicates via ION Protocol should be compatible with the PQView PQDMS. If you have a question about a specific meter model, we can let you know if we’ve communicated with it in the past and/or if we anticipate any issues with it.

Contact us, E-mail: info@powerquality.co.th

 

HDPQ - DN

I want to add the instrument to ESS, but I don’t see “HDPQ-DN” in the instrument list.
ESS does not support the HDPQ-DN.  You have to use PQView DE or PQView 4 to connect to it.
I want to add the instrument to PQview, but I don’t see “HDPQ-DN” in the supported instrument list.
The HDPQ-DN uses the same communications interface as the HDPQ Series.  Add it as a standard HDPQ portable.

 

HDPQ XPLORER / GUIDE / VISA

What to do if it appears the HDPQ or PX-5 is reading the Delta voltage incorrectly? (IE 700 v instead of 400V phase to phase)

 

1. Double check the wiring connection is EXACTLY like shown below.  Note: Do not assume C is connected to earth. Do not make any connections directly to earth from HDPQ.

 

2. If these connections are correct. Then verify there is no multiplier set in the instrument setup. If these are correct, go to step 3.

 

Remove all voltage connections from the HDPQ and the panel board under test.
- Connect 1 voltage cable from Phase + (black jack) to A phase terminal in the panel board.
- Connect a 2nd voltage cable from the Phase – (white jack) to Phase B phase terminal panel board under test. Sketch below

Read the voltage on HDPQ screen Phase A should read about 400V (assumes a standard 230 V system Phase to Neutral.) << If the voltage does not read 400Vs. If it reads 230V, you are connected phase to neutral at the panel. Check your connections at the panel. If the voltage reads some large voltage there are 3 possibilities.

  1. The panel connection is mixing 2 Different transformer circuits (Very unlikely).
  2. there is a multiplier in the HDPQ setup.
  3. One of the two connections are floating, and instrument is reading float voltage
  4. The instrument has failed and requires service. (Very unlikely).

If it reads correct voltage, move the jacks to channel B, leave the connections at the panel board the same. Channel B should now read 400Vac.
If it reads the correct voltage, Move the jacks on the HDPQ to Channel C. it should now read about 400V.

 

How to set up RVC monitoring and parameter definition?
Why HDPQ cannot detect my USB memory stick and cannot archive/save data file?
  1. Verify if the USB is a standard good quality and reputable brand USB Memory flash drive.
  2. If the USB drive was inserted and if found too “warm-hot” to touch, replace it. (the hot USB indicates a suspected faulty chip or poor quality resulting in internal heating)
  3. Next ensure USB drive were formatted with FAT32 format only. On some situation a USB cannot be detected – please refer to above FAQ “NTFS formatted USB memory stick”
How to DELETE the HDPQ screen capture & Mini-Report files within HDPQ?
  1. Enter into “ View Recorded Data”
  2. Select “Mini-Report viewer“
  3. A new screen will show  “HDPQReport”  [it is a folder that may contain a few files depending on you monitoring and saved screencapture].
  4. Important note: Under the HDPQ firmware  this Folder “HDPQReport”  is an  integral part of the operational software. Which means the folder cannot be delete [HDPQ does have a build-in feature) see step #5) it will delete the saved screen capture and mini-report file.
  5. Click on the “Delete” button (this will clear all saved files inside the folder “ \HDPQ_Reports\HDPQReport_\Content “ basically make the content folder as zero files for you next saving of mini-report. (note : before  deleting please ensure you have externally save your mini-report files)

 

How to monitor HDPQ database.ddbx from cloud server?

3G/4G carriers do not assign a public IP address to a device when it connects to the network.  So, it is IMPOSSIBLE to connect from the outside to HDPQ that is connected to a 3G/4G modem. 
You have two options:

  1. Use VPN tunnel between the HDPQ and the computer you want to access the HDPQ from.
    As I mentioned, it is impossible to connect to the 3G/4G modem from outside, therefore the VPN connection has to be made from the 3G/4G side.  This is the same side where the HDPQ is located.  HDPQ cannot make the VPN connection, so you need have a 3G/4G modem that has VPN client built-in, or you can use a computer or maybe even a phone connected to the modem to make the VPN connection.

    You will also need a VPN server with a static IP address at the computer you want to access the HDPQ from.  The modem / computer / phone on the 3G/4G side have to be configured to connect to your VPN server.  Once the connection is made, you will have a secure tunnel between the HDPQ and the computer.  You will be able to connect to the HDPQ using it’s IP address, and download data, remote control using VNC, etc.
  2. Use a 3rd party cloud server
    You will have to register with a cloud service provider and create an account for yourself.  Next, you to connect to the cloud server from the 3G/4G modem side and login using your registered account.  You can use a 3G/4G modem that has the built-in client to connect to the cloud server or use a phone or computer to make the connection.  You’ll also need to make a connection to the same cloud server from the computer you want to access the HDPQ from.  This computer also logs in using your registered cloud sever account, and then you will be able to connect to your 3G/4G modem if it is logged in to the cloud on the same account.

 

In case of this frozen screen

Please follow these 3 steps:

1. PRESS & HOLD your finger on any part of the HDPQ screen when it is power-UP
2. it should come up with a screen and ask if you want to reset.
3.  answer it by pressing "OK" and follow instruction on the screen

 

How to set up DC monitoring?

 

POWER PX5 / GUIDE 4400 / VISA

Why does the file error occur?

Power Visa portable has a function called “Characterizer mode”. This software is running behind the recording software to provide an event description when an event occurs. When the instrument detects excessive events, the characterizer takes time to analyze all the events. If this occurs at the end of monitoring session, there may not be time to finish before the start of next session. So that can cause file error.

Recommendation
To reduce the risk of error, follow the recommendation below

  • Before starting a monitoring session, format the CF card in the Power Visa.
  • Use only CF card that Dranetz provide or meets Dranetz’s requirement. 
  • Make sure that you uncheck the waveform snapshot.
  • Make sure that the threshold limits match your application.
  • If the monitor is connected to a circuit that has excessive events and triggers the Power Visa, there are two choices
  • Increase the threshold limit of all parameters. Or determine what parameter is causing the excessive event trigger and then adjust that threshold to reduce the events
  • and/or Check the “Raw” box under the characterizer mode.

 

 

ESS

Can the new ESS version ver5.5.7 & later be used for Firmware upgrade via ESS automatic upload?
Yes,on HDPQ-DN only (Caution” do not perform the ESS automatic Firmware Upload on HDPQ-Xplorer, Guide & Visa.)
Can HDPQ-DN & (Xplorer, Guide & Visa) be connected thru to ESS?
Only in ESS version 5.5.7 and later version will be supported for long term monitoring .
ESS showing "Incorrect Analyzer Type Detected” for a Data Node.

In ESS, turn off communication to the Data Node:

2. Using web browser login to the DataNode with username DranetzBMI and password #password#

3. Go into the Virtual Analyzer Configuration setup by clicking the green “V” icon:

 

4. Set the virtual analyzer to none, and make the other changes shown below.  After you click “Submit”, the instrument will reboot.

 

5. Put everything back the same as it was originally (Step 2) and click “Submit”.  Instrument will reboot

6. Go back to ESS and turn on communication to the DataNode


What’s a simple backup procedure for an ESS 5.x system?

rem Select the InfoNode root directory
c:
cd "C:\Program Files\Dranetz-BMI\Encore Series InfoNode\"

rem Stop the InfoNode service
.\infonode.exe -stop

rem copy the data files
cd system\data
xcopy /D /R /Y settings.bin .\backup\
xcopy /D /R /Y settings.db .\backup\
xcopy /D /R /Y d*.db .\backup\
cd ../..

rem Signal the InfoNode service to start. Note: this will return before the service is actually running.
.\infonode.exe –start

 

What is the meaning of each file string in dxxxxxxxx where xxxxxxxx is a hexadecimal code in the InfoNode Data Folder? Are files the ones storing the measurements?

Yes, measurements and other purgable data (e.g., log entries).
Separate files are created for each “expiration” day. Each object’s data is stored in the file corresponding to the object expiration date. File names are derived with the days-since-12/31/1899 as “d” + the encoded day value in hexadecimal + “.db” (e.g., “d0000800c.dat”).
The actual file date depends on the expiration date of the data which is configurable (normally time + 30 days). You can use EXCELL to figure out the file name. The formula is =DEC2HEX( INT( C4 ) +30) where “C4” is a cell containing a date. For example:

Date                 Day      File
11/1/2009         9CD4    d00009cd4.db
11/2/2009         9CD5    d00009cd5.db
11/3/2009         9CD6    d00009cd6.db

12/1/2009         9CF2    d00009cf2.db

A special name, “settings.db” is reserved for the non-purgable data; this file is however of the same structure as the purgable “d*.db” files.
The entire object state is stored in the record. This allows the entire database to be rebuilt from nothing but the storage files. To ensure robustness, the indexed auxiliary database tables that are used to access the data storage database files, can be rebuilt at startup if required. Further, each database file is fully independent. Deleting one file does not compromise the indices of another. It is however important to remember that some objects are interdependent. For example measurements in a “d*.db” file require DataNode objects stored in the “settings.db” file.

What is the “infonode.db” file used for? Do I need to backup it up?

“infonode.db” is the database file where the auxiliary tables (index tables) are stored. It can be rebuilt from the data storage files and so does not need to be archived.

What if I delete accidentally some of these files?

The system can “ride through” that. However, some operations (e.g., a trend plot) will fail until the database is “reindexed” (i.e., infonode.db is rebuilt from the settings.db and d*.db.
A database can always be rebuilt from settings.db and 0 or more d*.db files. To do so you:
- Stop the ESS service
- Delete all files in system\data directory
- Copy settings.db and d*.db to the system\data directory
- Start the ESS service

Is each file matching to one DataNode?

No – data is partitioned by its expiration day. The expiration day is the day the record was collected plus the “days to keep data” as specified on the InfoNode\Data setup page (Log entries have expiration offsets as well). Files are deleted to make room for new data when the database is full. This significantly improves purging performance of the 4.5.x database structure. It also allows for much more efficient archiving since older files become static. Differential backups are now possible (you only copy the files that have changed).

What if we set the size of the database to 20 GB; would the stability of the database deteriorate in this case?

No. Actually I’d recommend keeping the limit as low as practical. If the database is larger than the limit (e.g., 20 GB) the ESS will restart, purge data, and reindex the database to reduce the database size. As with the earlier database structure this is lengthy process. If the limit is greater than the current database size the ESS will simply continue without interruption.
Once a database size reaches the limit, the ESS will begin purging old data (by expiration date which corresponds to file name) to make room for new data. This does increase the ESS load; however, our testing has not shown any significant performance degradation.
Limiting the database size also ensures that the database files are more manageable. Let’s face it, even the fastest computers will struggle to move 100GB of data.

If I deleted information of the DataNodes through ESS Setup/Store, does the size of the files decrease?

No, you still need to compact the database to recover space (shrink files). Deleting data makes database records as free space; however, it does not shrink the size of the file containing the records.

What is the ESS Console Output?

The ESS maintains a “console (text) output log for diagnostic messages. The most recent console output is stored in a circular memory buffer. At startup and at shutdown this buffer is automatically written to disk. Optionally, the console output can be continually streamed to disk.
The console files are stored in the .\system\log directory in the ESS installation directory. This directory is mapped to the HTTP log/ path (i.e., http://localhost/log/) which allows log files to be downloaded via a web browser.
The startup and shutdown log files are named “in_start*.log”, “in_stop*.log”, and “in_abort*.log”. A start/stop or start/abort pair is created each time the service cycles. The most recent pair has a “0” suffix (i.e.,” in_start0.log”). Older pairs have “1”, “2”, “3”, “9” suffixes. You can also check the Window Event log (using the event viewer) to see if the service is cycling.
If console logging is enabled the console output is continuously written to a “circular” set of files. The files are also stored in the .\system\log directory. They are named “in_console_*.log The date on which the file was written is suffixed to the name (e.g., “in_console20110708.log”). Because of file locking, the current days file is not directly accessible when logging is on.
To maximize performance, console logging is disabled by default. It should only be enabled at the request of the factory when trying to diagnose problems.

How do I control the Console Output?

The console output is controlled with two options: a logging enable and a message level (0-7. The logging enable determines if the console output should be streamed to a disk. The message level controls the verbosity of the console output: 0 specifies least output (default), 7 selects the most detailed output. These levels are mapped to the corresponding SysLog levels.
The Console Output settings can be configured via a Telnet session. For example, to enable logging at level 7 the sequence is as follows:

 

Start a DOS session.
Enter the follow command “telnet localhost”
Press the Enter Key. The InfoNode should response with a “user:” request. Enter the “user” name.
The InfoNode should prompt with a “password” request. Enter the “password”.
The InfoNode should prompt for a command “>”. Enter “log on,7”
Enter “quit” to exit the session.

The console output can also be echoed to a telnet session. Use the “Telnet” console command to monitor the console output in a real-time session.

The console output can also be controlled and viewed via a web browser. The log web page is accessed via the”contolcgi.dll?cmd=Log” (e.g., http://localhost/controlcgi.dll?cmd=Log).

Does the ESS support Syslog?

The ESS implements a Syslog server capable of listening for incoming syslog packets and echoing them to the ESS console output. If logging is enabled then the ESS Syslog server is enabled.

 

 

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