use 6 thyriseor as SSR in 3PHASE(But dont WORK it)

Hi dear friends i use 6 thyristor as switch in 3 phase like below:

i trigger each thyristor on zero time in its phase . (i use zero crosing). it work when neutral is connect on star center .but it don't work when the neutral wire is disconnected .

what is the problem ?

i think for example in first time when thyristor's R phase is triggered because other thyristors are off it can't turn on (there is no way for flow the current in load )

but when the neutral is connected there is a way to flow current in load.

now please help me to solve the problem . how must i trigger thyristors that work circuit with out neutral wire? thanks a lot . best regards.

@i am sorry because my english isn't good.

by mohamad0
August 24, 2017

No Answers

No answers yet. Contribute your answer below!

Your Answer

You must log in or create an account (free!) to answer a question.

Log in Create an account

Go Ad-Free. Activate your CircuitLab membership. No more ads. Save unlimited circuits. Run unlimited simulations.

Search Questions & Answers

Ask a Question

Anyone can ask a question.

Did you already search (see above) to see if a similar question has already been answered? If you can't find the answer, you may ask a question.

About This Site

CircuitLab's Q&A site is a FREE questions and answers forum for electronics and electrical engineering students, hobbyists, and professionals.

We encourage you to use our built-in schematic & simulation software to add more detail to your questions and answers.

Acceptable Questions:

  • Concept or theory questions
  • Practical engineering questions
  • “Homework” questions
  • Software/hardware intersection
  • Best practices
  • Design choices & component selection
  • Troubleshooting

Unacceptable Questions:

  • Non-English language content
  • Non-question discussion
  • Non-electronics questions
  • Vendor-specific topics
  • Pure software questions
  • CircuitLab software support

Please respect that there are both seasoned experts and total newbies here: please be nice, be constructive, and be specific!

About CircuitLab

CircuitLab is an in-browser schematic capture and circuit simulation software tool to help you rapidly design and analyze analog and digital electronics systems.