Posts from...Today, Friday, August 22, 2014
from the Mechanical department...Steam Turbine Gear Box
15 MW Steam turbine gear box has high vibration at 3 to 4 MW load. What is the probable reason for this phenomenon?
By Mani Singh on 22 August, 2014 - 7:23 am -
I want to know whether your generator is air cooled or gas cooled....
from the operations department...Loss of Cooling Water to Steam Turbine Condenser
What will happen in special circumstances when there is a loss of Cooling water supply to the condenser
By Mani Singh on 22 August, 2014 - 7:18 am -
What I understood from the conversation that when the machine trips on cooling water not available...
from the Eurotherm 3504 department...Controller Watch Dog and Output Loop Failure Detection
Challenges with achieving the processor watchdog and output loop failure functionality with Eurotherm 3504.
from the automation department...Difference Between Full Load and Rated Conditions
Confused between the terms full load and rated conditions.
For a pump driven by an electric motor, the rated voltage of the motor is the nominal value of the...
from the Investors department...New Flow Measurement Method
How to find an investor of instruments.
Dear Mr. Sandlin, I sent you two emails after we talked about NDA, I am waiting to have your...
Thank you JMW > What you do is prepare for a long hard struggle and don't waste your money on...
from the Forum department...Westinghouse WDPF System
What kind of processor is the Westinghouse WDPF and what is its intended use?
Did you get any information about WDPF systems migration? > I am writing my bachelor thesis...
from the Forum department...GE Frame 7EA Combustion Turbine Starting Motor
Starting motor does not cutout when a normal shutdown is given below 60% speed.
Our units have air cooled generators but we do not have a ratchet assembly for slow roll or break...
So Bill here are my suggestions and thoughts on your issue. Some further clarification would be...
from the Instrumentation and Control department...Self Actuated Pressure Control Valve
What happens when Upstream pressure of Self actuated pressure control valve (downstream) is less than set Pressure?
If the valve is meant for controlling pressure upstream of the valve (pressure sustaining/...
from the Need to find a sensor department...Lightning Sensor
I'm trying to find a lightning sensor
This is an interesting message thread and somewhat related to one 14-year client that makes (and...
By Lynn August Linse on 21 August, 2014 - 9:39 am -
Actually, the vaisala dot com website was pretty interesting. Although it would be tough to...
By CuriousOne on 20 August, 2014 - 10:10 pm -
dopler radar is the answer....
By Lynn August Linse on 20 August, 2014 - 10:58 am -
I think this also depends on your goal. I'd assume the normal 'lightning' system is some form of...
By Tye Scott on 20 August, 2014 - 10:40 am -
http://www.vaisala.com/en/products/thunderstormandlightningdetectionsy stems/Pages/TLS200.aspx ...
By Curt Wuollet on 20 August, 2014 - 12:37 am -
Detecting lightning within a defined radius might be a problem. Not detecting the lightning, that's...
from the Forum department...Rated speed and Maximum speed in servo motors
difference between Rated speed and Maximum speed in servo motors ?
So the torque is kept constant when the speed is within the rated speed? ...
from the Instrumentation and Control department...Calculating Pressure Transmitter Range
How can we test Rangeability of Pressure Transmitter?
what is the output of this transmitter? suppose its output is 04-20 mA than zero and span would...
from the Chemical Engineering department...PI Controller on a Reactive Distillation Column
Tuning a PI controller for a dynamic reactive distillation column model.
from the I&C department...Fuse Monitor Alarm infi-90 DCS
Fuse monitor slave alarm of IMDSI02-NTDI01 DCS Infi90
from the Heads, flows, pumps & motors combined department...Pipe sizing for fluids and pump/motor selection
How do you select pipe size, metal as well as corresponding pump type with motors for process industry?
By Bob Peterson on 20 August, 2014 - 11:04 pm -
There are well known formulas for determining pressure drop across valves and thru piping and...
from the Forum department...Slave Device Lacks Connection to RS-485 Common Connection
Need to know how a slave device that lacks access to the RS-485 COMMON manage to maintain a Receiver common mode voltage between -7 and +12.
By Harvard on 20 August, 2014 - 8:48 pm -
It has been a long time since I have interfaced to a device with a metal frame, every thing in my...
By MarkW on 20 August, 2014 - 12:18 pm -
Many times 2 wire devices are referenced to frame ground and do not supply a terminal with + and -....
from the Power Station department...Efficiency of ac generators
When using ac generators in Power Stations, what are the advantages of using " Flux Cutting " types, compared to using " Magnetic Induction " types.
> Since you seem so well-steeped in Lorentz Law, why don't you explain it to us, and tell us...
from the Forum department...Sample Program for Twido Suite
sending the value of a register as a SMS message
from the Forum department...Chain & gearbox selection for factory automation
Selection process for gearboxes & chain for conveyors & packaging machines
from the Forum department...Adding Modbus register values together
How can you add MODBUS registers?
from the Forum department...Wonderware Intouch clock
Intouch help in creating an HMI to regulate start and stop time
from the Forum department...Web based HMI for Greenhouse
Looking for an affordable OPC Web based HMI solution
from the Forum department...Modbus Register Address
I have a question about entering the register address in our program PME when I have a 4-digit address.
By MarkW on 20 August, 2014 - 12:09 pm -
Actually, the original modicon only supported 0-999 addressing. Anyways, if your driver only...
from the Forum department...Accessing Real Time in GE FANUC PLC
How to get real time in GE FANUC VERSAMAX PLC for a calculation.
By MarkW on 20 August, 2014 - 11:57 am -
Use ServiceRequest 16, not 7. There is no reason to mess with Time and Date, when you can use the...
By Russ Bartels on 20 August, 2014 - 8:07 am -
Use Service Request 7, search the online help for how to use it: "SVC_REQ 7 Read or Change the...
from the Automation List department...Control Valve Cycle Measurement
How to measure the control valve cycles?
from the Forum department...Isochronous Load Sharing on Dissimilar Generators
Advantages of isochronous load sharing over iso-droop mode configuration of three generators.
from the Electrical department...Steam Consumption for 50 Hz and 60 Hz
The Steam consumptions for using 50Hz & 60Hz
from the OSI vs. Aspen department...OSI Pi versus Aspen Info Plus 21
Chemical company with batch processes has to decide if they buy Aspen tech or OSI.
By Chetan Patel on 20 August, 2014 - 3:27 am -
go for GE Proficy Historian, Best in solution and pricing as well.......
from the Forum department...Runtime Alarm Management OPC
Looking for runtime Alarm management OPC
from the Power Generation department...Getting a better understanding of GT control PART 2
Getting a better understanding of GT control PART 2.
CSA, Your response is much awaited. Your replies are very valuable to many of us. it helps in...
from the Forum department...PX_VIB_GAIN in Mark V
how PX_VIB_GAIN in mark V works?
By John on 19 August, 2014 - 11:10 pm -
I was on-site and had a look at this. The gain change was NOT a function of speed as the machine...
Government expands to absorb revenue and then some.