What is the effect of VFTO when voltage rating is increased in GIS?

When we increase the voltage rating, the magnitude of VFTO in gas insulated substation also increases. What are the effects in such case. I have attached the simulation result of VFTO across...

09 October 2016 4,374 1 View

How to represent surge impedance in EMTP-RV?

In EMTP-RV there is R, L, C blocks and combination of these blocks but i could not find any block for surge impedance. Yes surge impedance is obtained by L,C parameters but is there a provision in...

07 August 2016 8,302 0 View

How to calculate the surge impedance and traveling times in Gas Insulated Substation?

Due to traveling nature of the transients the modeling of GIS makes use of electrical equivalent circuits composed by lumped elements and especially by distributed parameter lines defined by surge...

07 August 2016 7,232 4 View

How to model transmission line when surge impedance and travel time parameters are given for study of transient analysis?

07 August 2016 8,324 6 View

Equivalent RLC circuit for RF resonator?

I am studying on damping of VFTO in GIS using RF resonator. Kindly provide me the necessary material for the same.

06 July 2016 7,379 0 View

Modeling of Gas Insulated Substation ?

I am studying about Very Fast Transient Over-Voltages in Gas Insulated Substations. So dear researchers I need your help in modeling of Gas Insulated Substation circuit diagram for doing...

05 June 2016 3,822 4 View

Is there any book for getting hands on EMTP-RV ?

I am beginner in EMTP-RV software so i request the researchers to provide me necessary details to get hands on the software.

02 March 2016 7,623 1 View

What are the different VFTO mitigation techniques of Gas Insulated substation?

02 March 2016 2,824 4 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View