What is the meaning of "R-S-T" in 3-phase system?

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Re: What is the meaning of "R-S-T" in 3-phase syst

pauluk #162844 04/26/07 06:55 AM

Joined: Dec 2005

Posts: 873

Likes: 4

Titirangi, Akld, New Zealand

R

RODALCO

Member

Hope not. Pauluk

Happy with the colours we have in NZ.
They are sensible colours.

Especially black which is a Neutral conductor here.

The product of rotation, excitation and flux produces electricty.

Wire Pulling Tools for Electricians

Re: What is the meaning of "R-S-T" in 3-phase syst

RODALCO #162860 04/26/07 10:55 AM

Joined: Dec 2001

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Likes: 1

Vienna, Austria

T

Texas_Ranger Offline

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I'd say that depends on the point of view

Re: What is the meaning of "R-S-T" in 3-phase syst

pauluk #164012 05/23/07 06:37 AM

Joined: Dec 2005

Posts: 873

Likes: 4

Titirangi, Akld, New Zealand

R

RODALCO

Member

Attached are two pics from common phase sequence meters used in our POCO area.

The RST marking is clearly visible.

Regards
Raymond

Kyoritsu Ø seq.
[Linked Image]

Densokki Ø seq.
[Linked Image]

Last edited by pauluk; 05/23/07 12:11 PM. Reason: Images moved to ECN server

The product of rotation, excitation and flux produces electricty.

Re: What is the meaning of "R-S-T" in 3-phase syst

RODALCO #164182 05/26/07 11:32 PM

Joined: Jul 2002

Posts: 8,450

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SI,New Zealand

Trumpy

Member

What's on the end of them wires Ray?.
Probes or clamps?.
My Seaward Phase sequence tester uses probes, but I have seen a lot with alligator clips on them.

Re: What is the meaning of "R-S-T" in 3-phase syst

Trumpy #164183 05/26/07 11:36 PM

Joined: Jul 2002

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SI,New Zealand

Trumpy

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Here it is:

[Linked Image]

Re: What is the meaning of "R-S-T" in 3-phase syst

Trumpy #164188 05/27/07 06:10 AM

Joined: Dec 2005

Posts: 873

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Titirangi, Akld, New Zealand

R

RODALCO

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Mike, at the end of the Densokki are alligator clips.
The Kyoritsu 8031 has removable screw on insulated alligator clips, otherwise probes.

I have seen the one you use as well by other contractors in the field.

The Toptronic T855 becomes also more popular, as well as probes, clips it has fused leads, which adds to additional safety.

The product of rotation, excitation and flux produces electricty.