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Tyco 1540 User Manual

Page 51

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Max continuous input voltage

120% of nominal (up to 720V max.)

Max short duration input voltage

2*nominal (1s application repeated 10 times at
10s intervals)

Nominal input voltage burden

0.2VA approx. per phase

Nominal input current

1 or 5A a.c. rms

System CT primary values

Std. values up to 4kA (1 or 5 Amp secondaries)

Max continuous input current

120% of nominal

Max short duration current input

20*nominal (1s application repeated 5 times at
5 min intervals)

Nominal input current burden

0.6VA approx. per phase

4.3.2 Auxiliary Power Supply

The unit can be powered from an auxiliary a.c. or d.c. supply that is separate from the metered
supply. Versions of the unit are available to suit 100-200V 45-65 Hz a.c./d.c. and 12-48V d.c
supplies.

Standard supply voltage

100 to 250V a.c. nominal ±15% (85V a.c. absolute
minimum to 287V a.c. absolute maximum) or 100V to
250V d.c. nominal +25%, -15% (85V d.c. absolute
minimum to 312V d.c. absolute maximum)

a.c. supply frequency range

45 to 66 Hz or 360 to 440 Hz (Model 0440)

a.c. supply burden

3W

d.c.supply

12 to 48V d.c.. nominal +25%, -15% (10.2V d.c. absolute
minimum to 60V d.c. absolute maximum)

d.c. supply burden

3W

4.3.3 Accuracy

Voltage

0.4% of reading ±0.1% of range

Current

0.4% of reading ±0.1% of range

Neutral current

4% of range

Frequency

0.15% of mid frequency

Power factor

1% of Unity

Active power (W)

0.9% of reading ±0.1% of range

Reactive power (VAr)

1.9% of reading ±0.1% of range

Apparent power (VA)

0.9% of reading ±0.1% of range

Active energy (W.h)

1 Class (IEC 1036, Active PF 0.8-1-0.8 importing)

Reactive energy (VAr.h)

2%, Reactive PF 0.8-1-0.8 importing)

Temperature coefficient

0.013%/°C typical

Response time to step input

1.5 seconds approx.

Error change due to variation

Twice the error allowed for the reference

of an influence quantity in the

condition applied in the test.

manner described in section 6

49

Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03