The Relay Testing Handbook Archives • Valence Electrical Training Services

Understanding Permissive Over-Reaching Transfer Trip (POTT) Communication Assisted Trip Schemes Video

Here is the latest video describing the Permissive Under-Reaching Transfer Trip Communication-Assisted Trip Schemes used in modern distance protection. You can follow along with this animation via the

Coming Soon! The Relay Testing Handbook: Simplified Motor Protection Relay Testing

Start by understanding the general operating characteristics of motors and their control schemes. Review the documentation to make sure everything is designed to operate correctly. Connect your test-set

Understanding Permissive Under-Reaching Transfer Trip (PUTT) Communication Assisted Trip Schemes Video

Here is the latest video describing the Permissive Under-Reaching Transfer Trip Communication-Assisted Trip Schemes used in modern distance protection. You can follow along with this animation via the

The Relay Testing Handbook Updates

Our publishing model allows us to quickly correct errors or omissions and implement suggestions. Please contact us at [email protected] to report a problem. If we implement your suggestion, we’ll

Can You Predict What Happens in a Directional Comparison Blocking (DCB) Scheme?

The Relay Testing Handbook: End-to-End Testing covers the most common Communication-Assisted Protection Schemes including the Directional Comparison Blocking (DCB) Scheme. This bonus animation shows

Can You Predict What Happens in a Permissive Under-Reaching Transfer Trip (PUTT) Scheme?

The Relay Testing Handbook: End-to-End Testing covers the most common Communication-Assisted Protection Schemes including the Permissive Under-Reaching Transfer Trip (PUTT) Scheme. This bonus animation

Can You Predict What Happens in a Directional Comparison Unblocking (DCUB) Scheme?

The Relay Testing Handbook: End-to-End Testing covers the most common Communication-Assisted Protection Schemes including the Directional Comparison Unblocking (DCUB) Scheme. This bonus animation shows

Can You Predict What Happens in a Permissive Over-Reaching Transfer Trip (POTT) Scheme?

The Relay Testing Handbook: End-to-End Testing covers the most common Communication-Assisted Protection Schemes including the Permissive Over-Reaching Transfer Trip (POTT) Scheme. This bonus animation

Can You Predict What Happens in a Direct Under-Reaching Transfer Trip (DUTT) Scheme?

The Relay Testing Handbook: End-to-End Testing covers the most common Communication-Assisted Protection Schemes including the Direct Under-Reaching Transfer Trip (DUTT) Scheme. This bonus animation

Can You Predict What Happens Inside a Distance Protection Relay?

Distance Protection (21) has many names (Line Protection, Line Distance Protection, Impedance Protection) and is one of the more complicated elements used in protective relaying. The Relay Testing Handbook

Understanding Transformer Vector Groups

Transformer vector groups can be a difficult concept to understand. I was lucky because the transformer ratio test-set I used for the first couple of years in my career allowed me to make three-phase connections,

The Relay Testing Handbook PDF Digital Version is Now Available

You can now purchase The Relay Testing Handbook pdf copies of any book in The Relay Testing Handbook series at our online store. The Relay Testing Handbooks are a series of books that have been written

The Relay Testing Handbook: End to End Testing get’s its first review on Amazon…and it is a five star review:

This review appeared on The Relay Testing Handbook: End to End Testing book page: “I have been in electrical testing for the past 15 years and have worked for NETA shops and utilities. The booket

NAIT’s new protection relay textbook is The Relay Testing Handbook!

The Northern Alberta Institute of Alberta’s (NAIT) Electrical Engineering Technology program is a nationally accredited and internationally recognized program that provides a comprehensive study

The Relay Testing Handbook has been added to the NETA bookstore

The InterNational Electrical Testing Association (NETA) is an organization that serves the electrical testing industry by offering accreditation of third-party electrical testing firms, certifying electrical

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