Flair 310, Flair 370 2008

MV network management - Easergy range
Technical data sheet
2008
Flair 310, Flair 370
Directional fault passage indicators
for underground networks
PE41001
Application
The Flair 3xx directional fault passage indicators are designed for underground MV
networks with isolated or compensated earthing.
They can also be used on underground MV networks with impedant earthing.
They provide a light indication allowing to localize the fault.
Flair 370: 220 Vac + lithium battery power supply.
Flair 310: lithium battery power supply (when no LV power supply available).
Description
Flair 3xx fault passage indicators are made of ABS polycarbonat sealable box.
b Operation mode and functions:
v adaptation to the voltage sensors using dip-switches,
v various user configurable parameters: detection parameters, reset functions
and output contact behaviour,
v optional settings, test and reset functions by magnetic button.
b Light indication
Green, Red or alternate Green/Red blinking according to fault type and location.
b Fault counters
Number of transient and permanent faults.
b Display: 4x12.7 mm digits
Displays fault counters and optional settings.
b 2 output contacts
Indication of transient and/or permanent faults.
b Directional detection
of phase-to-earth faults
Sensors
b Default settings fitting
most applications
PE55552
b Fully user configurable
PE55553
b 2 types of current sensors installation are possible:
v single CT installation: phase-to-earth faults only (installation on 3-core cable),
v 3 phase CTs installation: phase-to-earth and phase-to-phase faults.
b Detection of phase-to-phase faults
b Lithium battery power supply
MFD standard phase CT
MFH 2200 earth fault CT
TCR resin phase CT
b Voltage sensors are capacitive dividers situated:
v on MV/LV substations switchgears or transformers separable elbow connectors,
v on air insulated substations busbars.
Standard
PE55557
PE55556
PE55555
Light indicators
Flush mounted
(wall < 6 mm)
Anti-vandalism
DE55561
Flair 3xx detection principle is based on the analysis of
transients of residual voltage Vr (= 3 V0) and residual
current Ir (= 3 I0), in the next ms following the fault.
b At the time when the phase-to-earth fault occurs,
the fault direction is determined according to phase
comparison of Vr and Ir.
kV
A
10
100
0
0
Ir
Vr
-100
-10
b The fault will be confirmed if Vr is still present after
a configurable time delay (default 50 ms). Indication
of transient fault (counter and optionally output contact)
will follow.
b The fault will be confirmed as permanent (protection
tripping or power presence under earth fault conditions)
after the possible reclosing cycles before starting
permanent fault indication (light indication and optionally
output contact).
This detection algorithm allows detecting earth faults
up to approximately 200 Ω.
Light indication
DE55562
b Phase-to-earth fault
MV feeder
Green or off
b Phase-to-phase or double phase-to-earth fault
MV feeder
Characteristics
Application
Network (standard: others, on request) (kV)
Frequency (Hz)
Neutral
Phase-to-earth fault detection
Residual current detection threshold (A peak)
Residual voltage detection threshold (kV peak)
Residual voltage required for fault confirmation
(kV r ms)
Residual voltage r ms minimum duration (ms)
Minimum total capacitive current required (A)
Minimum capacitive current for indication
downstream fault (A)
Light indication
Double phase-to-earth fault detection
Tripping threshold (A)
10 to 25 (according to voltage sensor)
50
Compensated - isolated - impedant
40
0.3 x Un (e.g.: 6 kV peak for Un = 20 kV)
0.18 x Un (e.g.: 3.5 kV r ms for Un = 20 kV)
50* to 500
50
30
Red: earth fault towards cable
Green: earth fault towards busbar
100, 120, 140, 160*, 180, 200, 220, 240,
260, 280, 300
50, 60, 70*, 80, 90, 100, 120,140, 160, 180,
200, 250, 300, 350, 400, 450, 500
Alternate Red/Green
Time delay (ms)
Light indication
Phase-to-phase fault detection
Tripping threshold (A)
Time delay (ms)
Light indication
Time delays
Before indication of transient fault
(counter and output contact) (s)
Before indication of permanent faults
(light indication and output contact) (s)
Duration of MV required for any fault detection
(inrush restraint) (s)
Reset of fault indication
By restoration of MV without fault
for a duration of (s)
After configurable time delay (h)
Manual
Light indication
Flashing period (s)
Dry output contact
Breaking capacity
Environment
Vibration withstand (IEC 68-2-6 & 68-2-29) (g)
Operating temperature (°C)
Storage temperature (°C)
Protection grade
Mechanical characteristics
Dimension H x L x P (mm)
Weight (kg)
200, 250, 300, 350, 400, 450, 500*
50, 60, 70*, 80, 90, 100, 120,140, 160, 180,
200, 250, 300, 350, 400, 450, 500
Alternate Red/Green
1.1
Off-10-40-70*-120-240
5
5 (note: can be disabled)
2, 4*, 6, 8, 12, 16
With a magnet
1
8 A/250 Vac; 5 A/30 Vdc
2
– 25 to + 55
– 25 to + 70
IP 21 IK 9
270 x 203 x 110
1.5
(*) Default value.
Device
Power supply
Lithium battery
Reference
220 Vca (± 10%),
+ lithium battery
(10 kV isolated)
Battery life
duration
Flair 310
Flair 370
b
CTs
MFD
TCR
MFH 2200
IC 30C
Internal Ø (mm) External Ø (mm)
70
160
55
120
130
200
3 m cable for MFH 2200
59990**
C2991753**
59927
59998
Light indicators
BVE-D
LED-D
BVD
Type
Standard
Flush-mounted into wall < 6 mm
Anti-vandalism
59988
59989
59961
b
> 7 years*
> 10 years*
59979
59980
ART.95988 © Schneider Electric Industries SAS - All rights reserved
Detection principle
(*) Including 200 hours blinking.
(**) Kit of 3 CTs with connection bundle.
Consult us for voltage sensors, if necessary.
Schneider Electric Industries SAS
89, boulevard Franklin Roosevelt
F-92505 Rueil-Malmaison Cedex
Tél. : +33 (0)1 41 29 85 00
www.schneider-electric.com
www.easergy.com
AMTED304009EN
As standards, specifications and designs change from time to time, please ask for confirmation
of the information given in this publication.
Publishing: Schneider Electric
Production: Schneider Electric
Printing: Imprimerie du Pont de Claix
This document has been
printed on ecological paper
08-2008