Saitel DR as FPI using VPIS VO

[neracali]

Hi community,

Is it possible to use VPIS_VO (VPI6261x) as a voltage sensor with Saitel DR AB_AC/LPVT as Fault passage indication module for fault indication/direction and measurement? 

VPIS_VO is by default used with T300 SC150/160-LPVT using wire adapter EMS59577.
Is there any wire adapter for AB_AC/LPVT coax voltage terminals?

Thanks!

@Iván_González 

[JuanRayo]

Hello Neracali.

There is no wire adapter to interconnect  VPIS_VO (VPI6261x) with Saitel DR.

Saitel DR like any other member of Saitel´s family has not been designed for protective functions nor for FPI although we participated in an european I+D project with DR working as a FPI (special logical program) and IEC61850-GOOSE as the main driver to interchange information.

[JYPOC]

Hello Neracali,
Supporting capacitive dividers is quite unique on the RTU market.

Here are some explanations as to why T300 can support capacitive dividers (i.e., VPIS-VO V3, VDS LRM, VDS HR, PPACS and VDIS) and why Saitel DR CT/VT module can't.
As capacitive dividers are cheap and have a limited footprint, MV switchgear are normally fitted with these (1 unit per MV switch: load break switch, isolating switch, or circuit breaker) to provide a local visual indication of the presence of MV voltage on each of the 3 phases.
However, although a capacitive divider can provide a voltage output, it cannot follow any MV measurement standard: due to that, it cannot be considered as a MV voltage sensor, which is the reason for which it cannot be used with Protection Relays.

Saitel DR CT/VT module was designed for traditional MV voltage sensors (i.e., VTs) but not for capacitive dividers.
PowerLogic T300 is an RTU specialized for MV/LV substations (where customers mostly use capacitive dividers). That is why SC150 switch module has been designed to provide FPI & MV AC measurements, and to support both traditional MV voltage sensors (VTs and LPVTs) and capacitive dividers through an external adapter:

• EMS59577 for VPIS-VO V3,
• EMS59570 for VDS LRM or VDIS,
• EMS59580 for VDS HR,
• EMS59575 for PPACS

[neracali]

Thank you @JuanRayo for your answer.

In document https://download.schneider-electric.com/files?p_Doc_Ref=SE-M579-USR_EN&p_enDocType=User+guide&p_File... after page 37 Fault Detection Indication function is described. I checked in Easergy Builder that we can add this function and assign database elements.

So my next questions are:
1. what type of LPVT sensors can be used (preferably with Coax connectors)?
2. does some Coax "pigtails" come with ordered AB_AC-LPVT or can be ordered separately?
3. could we use VPI6261x (VPIS_VO) as voltage sensors, connect them somehow to the AB_AC-LPVT module and calibrate (page 66) for Fault Detection Indication function as described in upper document?

BR,

[neracali]

Dear @JYPOC ,

I asked about AB_AC-LPVT module, not AB_AC with VT option.
I couldn't find what voltage sensors I can use with it (capacitive or some resistive LP voltage dividers).

Does SE have some in their portfolio and could it be VPIS-VO V3?
This module also supports magnitude and angle calibration (page 66).

So I asked what is adequate voltage sensor to reach described SW function (Fault detection Indication)?

Could you help us @Iván_González , please?

BR,