Comments to Larry Morgan
Monday May6,1996 3-5pm
The Nottoway A in the Doubletree New Orleans.
Van Wagner Chairman Larry Morgan Secretary
vwagner52@aol.com rlm4012@dpcmail.dukepower.com
313-235-8494 704-382-4252
ADGENDA
Minutes of last meeting
Motion to accept; minutes accepted....
Coordination with other working groups
1100 >>> Chris Melhorn >> 2nd edition due out in 1997
1250 >>> Dave Vanhoy >> two taskforces in progress:
Flicker & Custom Power
519a>>> Mark McGrannahan >> In progress ... Meeting extra
day at the summer power meeting
Definitions > Van Wagner > Tim Unrue and Phil Barker
Taskforce on Definitions is progressing.. Will review 1346 and provide appropriate new definitions and coordination with the IEEE dictionary
Old Business
FTP site access > Larry Morgan > site is set up... Draft 3.0
is currently posted under working group 1346 with password 1346PW. also a comments area is available
IAS magazine article > Van Wagner > article on the progress and preliminary contents of 1346 was published.
New member solicitations > Van Wagner 22 invitations to joint the working group were sent out mainly from the drive testing and other industry address list to try to solicit Equipment mfr input ... No takers .. Any assistance to acquire input from end users and Equipment Mfrs would be welcome
New Business
Tutorials > Van Wagner > IAS Chemical and Rubber society request for tutorial for fall 1996 was judged premature.. However 1997 is Very Much a possibility at both the IAS and PES NOTE: one-two year lead time to get on tutorial schedule:::
Ballot Schedule > Van Wagner > proceeding with SCC22 to determine WHO and what committees make up the Balloting ..
For your OWN copy of the DRAFT 3 and subsequent drafts.
It is on the FTP site at IEEE
To access follow these step PRECISELY.
FTP to STDSBBS.IEEE.ORG
login: anonymous
password: rlm4012@newmail.dukepower.com (use your email)
cd private
quote site group p1346
quote site gpass 1346PW
cd p1346
dir
you will find several files here including draft2(1346_2.doc) and 1346mail.doc mailing list.
draft3(1346_3.doc) available AFTER 4/8/96
BIN
Get 1346_3.doc will transfer the doc to your local working directory.
quit to get out of the ftp site....
IF you have trouble getting the file call Walter Pienciak at IEEE 1-908-562-3805 ...
Review of Draft 3
Comments were Directed to content and content philosophy with directions to Email the CHAIR editorial, grammatical, etc comments. Comments on Draft 3 to be in to the CHAIRMAN no later that JUNE 15th 1996.
Draft 4 to be out prior to the fall IAS meeting were the final copy prior to balloting will be reviewed..
Changes hereforth are referred to from the draft 3.0 with clause and subparagraph nomenclature..
4.2 table 1 “perhaps put in terms of How many $ would have to be saved to justify the additional capital dollars...would give a feel for ridethrough $ available during new purchase..
4.2 noted that appendix for O&M exist but no appendix for Capital
4.4.6 Mark McGrannahan to supply harmonics “preferred” statement
4.4.7 Dave Vanhoy to supply statement on Wiring and grounding from the emerald book point of view .. no independent grounding etc..
A4 Add statement on environmental, contract fines
Add “seconds pricing” to scrap and rework
B3 P5 remove as it sets suggested values for disruption..
B3 P6 remove as it is covered in list as it makes judgment
reference to p1100 is in purchase list..
c.2 Add statement point on wave of incident and recover..
Equipment is to be tested to determine worst case point on wave for both the beginning and recovery of sag. these phase angles are then to be used when doing ridethrough computability specification results ...Test from 0-180 degrees in 15 degree increments...
Add Statement : Equipment magnitude differential between phases of 110% to 0% to be included in ridethrough testing..
C5
Add statement list of “other affecting factors..”
Point on wave of sag initiation and recovery (ex: sag occurs at 90* electrical and recovers at 120* electrical)
Loading torque and speed ( ex:full vs 1/2 )
Type of load (ex:high inertia vs friction load)
1 phase 2 phase 3 phase ( number of phases simultaneously
sagged)
Type a,b,c,d faults (see Math Bollen’s paper)
Magnitude imbalance (ex:120% on A;0% on B phase )
Multiple Events ( ex:two sags in rapid succession )
D.2 fig1 Label the starter and the PLC
ITIC(cbema) curve vs an example of a PLC and a starter
D.3 fig2 Sag voltage source should be of the same impedence as the presag source to allow the same energy transfer per voltage change.
D.3 pp3 ... Phase angle control for sag testing power electronic supplies may not be necessary; however it is very critical for magnetic devices such as relays and contactors.
Delete recommendation for simple line zero cross source etc...
D4 pp1 Add ..such as raising the distribution transformer tap setting to changing jumpers on control boards....
D4 pp4 ... verify the proper coordination of the supply and component voltage ratings from the service entrance to the distributed power supplies on electronic control boards..
D5 fig4 add box around control and show additional drawing with no dc link inductor and precharge resistor ..
Add statement...precharge resistors or dc links or both are used to limit inrush to the dclink capacitors during startup ...during normal operation the precharge circuit is shorted to give optimum responsiveness to the drive; but also is NOT available to limit the inrush current during sag recovery possibly causing overcurrent trips..
For the three sections....use the same term PRE-EVENT VOLTAGE
When..1-10 cycles prior to the event
Where.. service entrance,power distribution bus , control board...(van...
don’t remember where this part came from)
D5 relay fig... remove the DC relay from graph or indicate that because It is dc powered from a switchmode the phase angle does not matter.. ridethrough is dependent on the DC power supply system
D5 For all three figures...Indicate model a,b,c,etc instead of best and worst case... Purpose is to indicate that all are not equal..not to give a best/worst design criteria..
Add section on the importance of testing the whole system as shown on Mock control testing... (Van...I will supply this section..)
Comments to Larry Morgan