Control.com - Nerds in Control
Reusing steam from turbine as power source.
New Replies:
By Bruce Durdle on 3 December, 2009 - 1:41 pm -
It is possible to use a steam turbine as a stage in pressure reduction. Variants are a pass-out...
errors after altering parameters in Cimplicity 4.0
EPLAN vs. AUTOCAD Electrical
New Replies:
I bought ePlan compact for $500 two months ago. It is nice, but extremely cryptic! There is...
GE 7FA Hydraulic oil leak from GCV#03 v/v
New Replies:
In my opinion, in an emergency situation if you have to shut off the hydraulic pumps because of a...
Dear CSA,
Same hydraulic oil pumps is used to jack the bearing while coasting down as well as on...
This is an excellent illustration of two very important aspects of maintenance & operation.
...
Concept of slip speed in Self Excited Induction Generator (SEIG)
Use VB8 to read position from optical encoder and speed from tacho
DB addressing DataType as S5timer conversion to Proface.
How Neutral Grounding Transformer / NGR prevents Damage of Generator
New Replies:
By SR on 3 December, 2009 - 1:29 am -
Yes Phil.
During normal operation the effect is nil. During fault time it does not allow sudden...
By Raj on 3 December, 2009 - 12:37 am -
Mr.SR,
The Concept (inductance of transformer prevents backward flow of fault current...
By Raj on 3 December, 2009 - 12:28 am -
Thank you Mr.SR.
Suppose, if we remove the neutral (Ungrounded System instead of Impedance...
By Bill on 2 December, 2009 - 1:01 pm -
Simplistically, ground fault current flows out of the phase terminal, into ground, and returns...
By Phil Corso on 2 December, 2009 - 9:47 am -
SR... it is true that the distribution-type transformer in the NGT scheme adds an inductive...
By Raj on 2 December, 2009 - 12:30 am -
Mr. Jan
Thank you for Ur Response.
I have explained in my above post, the same whatever you...
By Raj on 2 December, 2009 - 12:21 am -
Yes Mr.Phil. I have searched Complete Control.com, everywhere ppl talked about choosing NGR &...
By SR on 1 December, 2009 - 11:14 pm -
Hey
If there is a fault in the phase side huge amount of current will flow to the fault as their...
By Jan on 1 December, 2009 - 11:54 am -
Hi,
Grounding resistor in the neutral will limit the ground fault current in case of an stator...
By Phil Corso on 1 December, 2009 - 8:53 am -
Raj... have you searched the Control.com Archives?
Phil Corso...
How to change operation between motor, and generator?
New Replies:
By Jeff Garber on 2 December, 2009 - 1:57 pm -
If the battery is fully charged and always connected to the motor/generator, it will cause the...
Any demo-software available?
New Replies:
By Pritesh Patel on 2 December, 2009 - 10:45 am -
Hello fellow-engineers,
Please refer the following link:
...
Yes, I noticed that the hardware platform is checked when I wanted to install the software on an HP...
Hi Rudi
Thanks for the reply. I wanted to know how did you install EPKS on your laptop in the...
Yes, the server is shutdown every 5 hours.
Purchased development license from Honeywell. It...
Hi Adil
Yes i have worked with Plantscape. Hope it is with C200 and controlnet. What is wrong...
New Tycoflow eazical IR positioner hunting.
Additional Delta Secondary Winding for Star-Star/Star Connected Station Transformer
New Replies:
By SR on 1 December, 2009 - 11:31 pm -
Hey
Usually YNynyn xmfr is not used. Please check it must be center tapped star on both...
By Phil Corso on 1 December, 2009 - 7:51 am -
Pramod...
9) Have you asked your vendors what will be the effects of single phase-to-earth...
> 6) Is the tertiary wye-winding being used to carry load? <
- Yes
> 7) Is it (11.5kV)...
By Phil Corso on 29 November, 2009 - 8:55 am -
Pramod... so far you have indicated at least two of the 3 windings are earthed. Furthermore,...
1* The transformer is of core-type construction.
2* The 400kV side is effectively (solidly)...
By Phil Corso on 28 November, 2009 - 2:08 pm -
Pramod... further to my earlier e-mail:
4) What did you mean by "and above?" Is the...
In case of differential protection, say for generator, we know that current entering a phase must be equal to current leaving that phase. Now for example, there is a short cct between phase R & y at the point where current is entering the phase, just after
New Replies:
By Phil Corso on 1 December, 2009 - 2:38 pm -
mitreviper...
1) Overload protection can't differentiate whether the fault is within the...
By mitreviper on 1 December, 2009 - 1:57 am -
Hi,
Why would one want to use differential protection? Would overload protection be sufficient...
I require a low cost serial DAQ which can support minimum 5 PT 100 sensors. The DAQ should have capability to provide power to the sensors.
New Replies:
By David on 1 December, 2009 - 2:15 am -
Advantech has a single channel RTD module, the ADAM-4013, that supposedly talks over RS-485...
preload in tilt pad journal bearing used in GE-F9 gas turbine
I want to convert 4-20mA (from a sensor) to 0-5Volt, but I don't know how...
New Replies:
Count me among those who recommend an off-the-shelf solution.
Dataforth (www.dataforth.com)...
We are having Siemens S7-300 PLC with analog inputs. We are also using the same method to display...
like to know how di I make the Modbus device communicate with the PC using Maxdna DCS system
New Replies:
By Raffi on 30 November, 2009 - 10:23 am -
II am faced with the same challenge with the Max Controls DCS system.
Look to see if your RTU...
LCN Suspect Alarm after connecting app-node TPN server with OPC optimizer
New Replies:
By SPR on 30 November, 2009 - 12:35 am -
Dig in a little deep. Check system maintenance and system errors from Even history menu in system...
In the architecture the tps app-node is before LCNE. So basically the app-node is connected to LCNE...
green n yellow cable segments between nodes should have same length. Moreover, in LCN suspect...
Facing problem in Hydraulic ratchet mechanism of frame V Gas turbine generator.
New Replies:
Hi,
Please check the inline filter to the Hydraulic Motor, also check the inline filter to the...
By Mambo on 29 November, 2009 - 11:22 am -
Hi,
Please check both jaw clutch cylinders, replace them,may be they are worn out and internally...
please i have some question in this topic. we face problem in GTG same unit hydraulic ratchet...
IS barriers with SIL3 certification for 4-20mA analog inputs
Your use of this site is subject to the terms and conditions set forth under Legal Notices and the Privacy Policy. Please read those terms and conditions carefully. Subject to the rights expressly reserved to others under Legal Notices, the content of this site and the compilation thereof is © 1999-2010 Nerds in Control, LLC. All rights reserved.
Users of this site are benefiting from open source technologies, including PHP, MySQL and Apache. Be happy.
Fortune
"I wish there was a knob on the TV to turn up the intelligence.
There's a knob called `brightness', but it doesn't work."
-- Gallagher
