Why inertia of Squirrel cage induction generators (SCIG) and Double fed DFIGS is less than conventional synchronous generators?

More Umair Shahzad's questions See All

Why porous membrane breaks during drying?

Hi, I am preparing a porous Carboxymethyl cellulose membrane by adding DMF as non solvant. After addition of DMF into CMC, I stirred it at 70 degree for 4 hours and then put into glass petri dish...

23 June 2024 3,080 2 View

I want determine Iron by spectrophotometer? Anyone know about the spectrophotometric determination of iron and copper, kindly share the procedure?

spectrophotometric determination of iron and copper

04 June 2024 1,720 0 View

How we can find thermoelectric properties of 2D by VASP?

Hello Seniors, I need some help, I want to find out thermoelectric properties of 2D materials by VASP software can you tell me All steps and important INCAR tags.?

02 June 2024 7,093 1 View

Since many centuries human has researched on advancing weapons of destruction, why not researched on ways to bring advancement for peace in the world?

The mankind is on the edge of resistance to peace. If you view news you will find that every day there are portions of the world where wars are happening and many innocent people are being killed....

26 May 2024 4,633 3 View

What is the difference between Calibrator. Control and Standard?

i am working in a diagnostic lab and very confusing about the calibrator, control and standard that we are using in our lab for quality assuarance of diagnosis of disease

07 April 2024 5,763 2 View

How to calculate HKL values without JCPDS card?

I am working on HKL values calculations for Pna21 space type BFO. is there anyone who can recommend a reliable method for the calculations of HKL values without accessing JCPDS cards....?...

13 March 2024 4,942 2 View

Wht to do if 4 items of one factor loaded in 2 different columns ?

There are 4 items in one variable and in EFA , items loaded in 2 different columns of other variable

06 March 2024 2,161 1 View

I want to write patent, suggest some fields in the area of control systems, mechanical engineering?

Hi, I am going to graduate soon InshaaALLAH. I have a plan to write a patent, I am currently working in the control and design laboratory and my Prof. expertise is also in control systems. I...

28 February 2024 8,573 1 View

Overview of Machine Learning. What are the opportunities it brings to developers? What threats does it pose to society?

I need a referenced cites on the above

17 February 2024 7,991 2 View

Devise a cloning strategy to clone Chitinase gene from Spodoptera frugiperda into maize against a fungal pathogen Alternaria alternata?

If I have to make the cloning strategy, what should be my workflow to do this. I got two problems, one to select suitable expression vector from pCAMBIA1301, and pCAMBIA1302. As 1301 has GUS...

17 February 2024 8,748 2 View

How are aPTT and PT values reduced after hemodialysis compared to before dialysis value in patients with chronic kidney disease?

I am conducting my research regarding blood coagulation in patients with CKD. I observed a reduction in post hemodialysis aPTT and PT values compared to pre hemodialysis values. But most of...

30 July 2024 3,467 0 View

Unexpected 35 kDa Band Observed During Expression and Purification of Dengue 3 NS5 RdRp Domain ?

Background: I am developing an RdRp assay for Dengue virus-3 and need to express and isolate the NS5 protein's RdRp domain (~101 kDa). My expression vector includes a GST tag followed by a 6x His...

13 July 2024 9,950 3 View

Can I do IPTG induction on OD600=2.6 in TB?

I have been looking at papers for protein expression and trying to follow the process. I'm using TB medium to do the process, and the paper says to grow to an OD600 = 1.8 at 37 degrees, then let...

30 June 2024 6,502 5 View

Is it possible to apply abductive inference in Grounded Theory?

I am trying to do Grounded Theory in documentary research. I have obtained the most frequent terms (induction) to perform deductive coding and so, articulate a hypothesis about the hidden...

05 June 2024 2,599 2 View

Using Integral of Error as Input in Fuzzy Logic Controllers?

Hello. I'm currently working on a control system for a doubly fed induction generator (DFIG) as part of my thesis project. Traditionally, fuzzy logic controllers (FLCs) use the error (e) and the...

27 May 2024 1,732 2 View

Can someone give me some clarification re. induction of CYP3A4 and concurrent metabolism experiment?

Hi, our lab has recently started working with primary hepatocytes in 3D form. The lot we are using has high basal activity which declines as the spheroids age. We are looking to undertake drug...

21 May 2024 1,321 0 View

Which is better using low DC voltage or high DC voltage for three phase inverter for driving three phase induction motor?

For the design of three phase inverter for three phase motor drive, which is better using low DC voltage (12 V or 24 V DC) for the inverter stage then step it up using three phase transformer, or...

08 May 2024 3,491 3 View

Is there a direct connection between zero core reluctance and zero leakage flux?

I have seen that some lecturers claim the leakage flux of a transformer will automatically become zero in case it has an ideal iron core. I want to say NO! This is correct for a system with a...

03 May 2024 4,010 14 View

For IPTG induction, should I use overnight culture or secondary culture and after how many hours of IPTG induction, we should take samples for SDS?

I need to check protein expression via SDS, therefore I wanted to know the exact procedure of IPTG induction. whether I give induction in an overnight grown culture or should I go for secondary...

23 April 2024 440 3 View

Can hydrogen peroxide stimulate magrophages for the induction of nitric oxide?

Can hydrogen peroxide stimulate magrophages for the induction of nitric oxide? What is the protocol?

16 April 2024 1,409 1 View

Samundra Gurung

The largest single Induction generator used for wind power generation typically have a rating of only few MWs, whereas as you know the conventional synchronous generators can have huge power ratings. So, larger the machine more the inertia.

Umair Shahzad

so if we replace a synchronous generator of 10 MW with the same rating of Induction Gen, it means their inertia will be same?

Bilal Abdullah Nasir

due to the rotor of synchronous generator has a magnetic poles (laminations) while the squirrel cage induction generator has a cylinderical shape without poles

Due to the induction generators having no DC magnetic poles on their rotors.