Is there any device or component that can clamp the 200V input to 25V for 200ms without failure? Please help.

 

Obviously yes but the problem is that your question is too general to actually be able to make sensible suggestions. More details required on your application/current circuit please.

 

This voltage is used for taking measurement. The voltage varies for 0.5V to 200V. The voltage is created on a coil(inductor) due to induced emf when a current flows through a primary conductor using Faraday's current law..The voltage above 25V is due to fault current in the primary conductor which I dont require to measure. So from 0.5V to 25V I want the actual voltage and above 25V to 200V I want the voltage to be clamped at 25V.

I dont know much theory nor I am a professional on this design its just trial and error. Can anyone help to find a component which can do my job? Please help!!!

 

Do you have any schematic or diagram for this setup. More details are needed. Do you want to clamp the output just for measurement? That may simplify the the setup

 

Varistors and/or TVS diodes come to mind.

As mentioned, specific information about what kind of current you will be fighting will help in selecting specific components.

 

What is the inductance and the current value?

 

What is the inductance and the current value?

That is the critical question.

If you are only dealing with milliamps, the circuit can be clamped with a simple zener diode. More than that amount of current and the components must be larger.

 

This is OP's second thread about this.
http://forum.allaboutcircuits.com/showthread.php?t=97555

Not much info.

Sounds to me like a current transformer.

I mention selenium, if budget permits, in the other thread.