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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)
th
LC FILTER: 5
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 ...........................
Standard secondary voltage...........................
Short circuit voltage ratio ucc% ...........................
Power kVA ...........................
Constructive standards ...........................
LC Filter
Resonance frequency ...........................
4.1
Types and components (see wire diagram)
TYPE
TR
(kVA)
TSA-10
10
TSA-20
20
TSA-30
30
TSA-40
40
TSA-50
50
TSA-80
80
TSA-100
100
L1
Three phase
R-15-400
CV-40-10
R-15-400
CV-40-10
R-15-400
CV-40-10
RB-30-400
CV-40-20
RB-30-400
CV-40-20
RB-30-400
CV-40-20
RB-30-400
CV-40-20
400 V phase to phase
230 V phase to phase
6%
Depending on type
EN 60 742
225 Hz
C1
RD
WRTR-35/03
WRTR-35/03
WRTR-35/03
WRTR-35/03
WRTR-35/03
WRTR-35/03
WRTR-35/03
IA1
IA2
(A)
(A)
1
20
1
40
1
63
1
80
1
100
1
160
1
250
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