CIRCUTOR TSA Series User Manual
Page 8
3
TSA FILTER DESCRIPTION. (See schematics).
The TSA filter is formed by the following parts :
ISOLATION TRANSFORMER: With the following characteristics.
Primary side: Delta connection. Input terminals: U1, V1, W1, N , PE (see wire diagram)
Secondary side: Star connection, usually with 230 V phase to phase. The neutral conductor
is not used in the load. The star point is connected to the protection earth cable (PE). Output
terminals: U2, V2, W2., PE (see wire diagram)
LC FILTER: 5
th
harmonic filter
THREE PHASE POWER CIRCUIT BREAKER: The size depends on the rated power of the
TSA. The circuit breaker is placed at the primary side. The breaker trips in case that an earth
leakage is detected at the secondary side circuit.
SINGLE PHASE AUXILIARY SUPPLY CIRCUIT BREAKER: This breaker protects the earth
leakage relay and other auxiliary protection circuits.
EARTH LEAKAGE RELAY: This relay provides a protection in case of earth leakage at the load
side. The standard protection relay is adjustable from 30mA to 300mA and has an adjustable delay.
4
TECHNICAL CHARACTERISTICS
TSA filters are often designed under particular specifications, but all of them have a set of common
characteristics which are listed below.
Transformer
Standard primary voltage ...........................
400 V phase to phase
Standard secondary voltage...........................
230 V phase to phase
Short circuit voltage ratio ucc% ...........................
6%
Power kVA ...........................
Depending on type
Constructive standards ...........................
EN 60 742
LC Filter
Resonance frequency ...........................
225 Hz
4.1
Types and components (see wire diagram)
TYPE
TR
(kVA)
L1
Three phase
C1
RD
IA1
(A)
IA2
(A)
TSA-10
10
R-15-400
CV-40-10
WRTR-35/03
1
20
TSA-20
20
R-15-400
CV-40-10
WRTR-35/03
1
40
TSA-30
30
R-15-400
CV-40-10
WRTR-35/03
1
63
TSA-40
40
RB-30-400
CV-40-20
WRTR-35/03
1
80
TSA-50
50
RB-30-400
CV-40-20
WRTR-35/03
1
100
TSA-80
80
RB-30-400
CV-40-20
WRTR-35/03
1
160
TSA-100
100
RB-30-400
CV-40-20
WRTR-35/03
1
250