ISA T2000 - Page 26

DOC. SIE10110 Rev. 6 Page 27 of33
The first transformer, BU2000 MAIN, has two connection cables: one with the supply, the other
one with the output current measurement. The other transformers, BU2000 AUX, have only the
supply cable. All cables are 20 m long.
Connections from T2000 to the BU2000 INTERPOSING MODULE are:
. The variable AC voltage output (not isolated from the mains), that performs the fine current
adjustment;
. The TEST START command, coming from the auxiliary output;
. The TIMER START contact;
. The mains supply.
The following table summarizes the option codes, available configurations and the corresponding
performances.
CODE
N. OF
TRANS.
INTERP.
MODULE
WEIGHT
N. OF
TURNS
TEST
CURRENT
A
SUPPLY
CURRENT
A
ON
DURATION
s
PII50102
1
NO
19.5
3
1000
2.63
INFINITE
2000
20.96
9
PII51102
2
YES
29.5
2
1000
5
INFINITE
2000
20
100
3000
45
6
PII52102
4
YES
49.5
2
1000
5.2
INFINITE
2000
21
1000
3000
47
100
4000
83
9
1
1000
4.5
INFINITE
2000
18
1000
3000
54
50
The table lists:
. The option code;
. The number of transformers of the option;
. The presence of the interposing module;
. The weight to be lifted, that includes: transformers, high current connection cable and connection
clamps;
. The number of turns at the secondary side of the transformers. In the instance of four transformers,
it is possible to have 1 or 2 turns, according to the desired test current and test duration;
. The test current;
. The supply current from the mains;
. The test duration, that is followed by a pause lasting 3 minutes (or a fraction proportional to the
TON/TMAX ratio).
The following table is the same as the above, but it summarizes the test duration as a function of the
test current with the different number of transformers; in brackets the number of turns.
INTERPOSING MODULE
TO THE MAINS
CABLES TO THE
MODULE
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