ISA T2000 - Connection Cables

DOC. SIE10110 Rev. 6 Page 22 of33
TEST
OF
TEST
DESCRIPTION
INPUT DATA
CONN. OUT
CONN. IN
MEASUREMENTS
VT
N. 8
Ratio; polarity
V primary in kV;
V secondary;
Connection LL, LN
for primary and
secondary
(nominal values)
High V AC
to VT primary
VT
secondary
to V in
1) High VAC (primary)
2) V in (secondary);
3) Phase shift ;
4) Actual ratio;
5) Ratio error %;
6) Polarity
VT
N. 9
Burden, secondary
side
- V secondary
(nominal value)
- Connection LL,
LN
- Voltage output
- Voltage input
Low V AC to
VT burden
VT burden
to V in (if
enabled)
1) V out (secondary);
2) I out (secondary);
3) Phase V-I ;
4) Power factor;
5) VA rating
VT
N. 10
Electronic Voltage
Transformers
- V primary;
- V secondary;
- Connection LL,
LN for primary and
secondary
(nominal values)
High V AC
to VT primary
VT
secondary
to V in
1) High VAC (primary)
2) V in (secondary);
3) Actual ratio;
4) Ratio error %;
5) Polarity
VT
N. 11
Voltage withstand
- Max High V AC;
- Max I test;
- Test duration.
High V AC to
Primary and
secondary;
1) High V AC out;
2) I out of High V AC ;
3) Elapsed Time
VT
N. 12
Over-current
protection
- I Trip
- Output current
Low I AC to
VT protection
1) I out (secondary)
2) I trip
PT
N. 13
Ratio per Tap
- V primary in kV;
- V secondary;
- Connection LL,
LN for primary and
secondary
High V AC
to VT primary
VT
secondary
to V in
1) High V AC out;
2) I of High V AC;
3) Phase V-I
4) V in;
5) Actual ratio;
6) Ratio error %.
PT
N. 14
Resistance of Tap
Changer contacts
- Temperature
compensation Y/N
- Ambient and
target temperatures
Low I DC
V in
1) I DC out;
2) V of IDC out;
3) Resistance;
4)Compensated
resistance
PT
N. 15
Dynamic tap changer
test
- Time base
- trigger level
Low I DC
V in
1) I DC out;
2) V of IDC out;
3) Resistance;
4) Resistance waveform
R Grid
N. 16
Resistance or
resistivity of earthing
grid
- Output voltage
- Input voltage
Low V AC to
auxiliary spike
V input from
measurement
spike(s)
1) Output voltage
2) Output current
3) Input voltage
4) Ground resistance or
Ground resistivity
Line imped
N. 17
Overhead lines
parameters
- Output voltage
- Output current
Low V AC to
overhead line
1) Output voltage
2) Output current
3) Line impedance
4) Earth factor
5) Mutual factor
3.10 CONNECTION CABLES
1. N. 1 Mains supply cable, 2 m long.
2. N. 1 Interface cable for RS232 port.
3. N. 2 High current connection cables, 100 sq. mm, 4 m long, for tests up to 800 A. Terminated on
both sides with an high current connector (M+F).
4. N. 2 High current connection cables, 100 sq. mm, 0.5 m long, for tests up to 800 A. Terminated
on one side with an high current connector (M), and on the other side with spring clamp.
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