ABB PVS800-57B, Руководство по оборудованию, Страница: 53 / 84

Technical data 53
Terminal and lead-through data for the control cables
I/O cables Cable outer diameter:
• 5...7 mm 6 pcs
• 10...14 mm 2 pcs
Max. conductor size: 1.5 mm
2
/AWG 16
Tightening torques: 0.2 – 0.4 Nm
Aux. power cables Cable outer diameter:
• 20...26 mm 2 pcs
• 10...14 mm 2 pcs
Tightening torques: *M12 70 Nm
AC output connection specification
Voltage PVS800-57B-1645kW-C: 380 V AC 3-phase +/- 10%
PVS800-57B-1732kW-C: 400 V AC 3-phase +/- 10%
Allowed electrical system
type 3-phase IT (ungrounded) system. Galvanic isolation for each inverter is
needed.
Transformer The transformer must be suitable for IGBT-based inverter use with high d u /d t
values against the ground. Dedicated low-voltage winding is needed for each
inverter. Static screen between windings with proper dimensioning is
needed.
For details on selecting the transformer, refer to
Selecting the transformer on
page 33 .
Short-circuit withstand
strength (IEC 60439-1) Maximum allowable prospective short-circuit current is 50 kA when protected
by fuses given in fuse tables.
When
temporary grounding for work is applied (one set of grounding cables
are connected to the connecting knobs of the AC and DC busbars and PE of
the inverter): the maximum allowable prospective short-circuit current is
decreased to 40 kA / 1 s. If the connected grounding cables and clamps are
not equivalent to the prospective short-circuit rating of the inverter, the total
rating will be lower.
Frequency 45 to 65 Hz withstand with normal dimensioning (grid-compliance may
require disconnection at smaller values.) Maximum rate of change 17%/s
Imbalance Max. ± 3% of nominal phase to phase AC line voltage
Voltage dips Max. 0%
Fundamental power factor
(cos phi
1
)
1