14
4.3 - Short-circuit stability current for all units
Short-circuit stability current for all units using the TN
system (earthing system type):
50 kA (conditional system
short-circuit current Icc/Icf at the unit connection point as
rms value).
All units are equipped with a main disconnect switch located
in the control box immediately downstream of the unit
power connection point.
4.4 -
Compressor electrical data
Compressor nominal voltage/frequency: 380V/60Hz
Compressor
I Nom
(A)*
I Max
(A)**
MHA
(A)
LRDA
(A)
Cosine phi
nom.*
Cosine
phi max.**
06TUX483
178
250
279
1537
0.88
0.92
06TUX554
205
315
340
1537
0.89
0.92
06TVX680
245
362
390
2179
0.89
0.92
06TVX753
260
400
430
2179
0.89
0.92
* Value at standard Eurovent conditions: evaporator entering/leaving water tempera-
ture 12°C/7°C, condenser entering/leaving water temperature 30°C/35°C.
** Value at maximum capacity and nominal voltage.
Legend
MHA
- Maximum compressor operating current, limited by the unit (current given
for maximum capacity at 342 V)
LRDA
- Locked rotor current for delta connection
4.5 - Compressor usage
30XW-V/30XWHV
580 630 810 880 1150 1280 1470 1570 1710
06TUX483
A
-
-
-
AB
-
-
-
-
06TUX554
-
A
-
-
-
AB
B
-
-
06TVX680
-
-
A
-
-
-
A
AB
-
06TVX753
-
-
-
A
-
-
-
-
AB
Notes, electrical data and operating conditions - 30XW-V/30XWHV units
• The control box includes the following standard features:
- One main disconnect switch per circuit
- Anti-short cycle protection devices
- Control devices
•
Field connections:
All connections to the system and the electrical installations must be in full
accordance with all applicable codes.
• The Carrier 30XW-V/30XWHV units are designed and built to ensure conformance
with local codes. The recommendations of European standard EN 60204-1
(corresponds to IEC 60204-1) (machine safety - electrical machine components
- part 1: general regulations) are specifically taken into account, when designing
the electrical equipment*.
• Annex B of EN 60204 1 describes the electrical characteristics used for the
operation of the machines. The ones described below apply to 30XW-V/30XWHV
units and complement other information in this document:
1. Physical environment**: Environment as classified in EN 60721 (corresponds
to IEC 60721):
- indoor installation
- ambient temperature range: minimum tempe5°C to +42°C, class AA4
- altitude: lower than or equal to 2000 m
- presence of water: class AD2 (possibility of water droplets)
- presence of hard solids, class 4S2 (no significant dust present)
- presence of corrosive and polluting substances, class 4C2 (negligible)
2. Power supply frequency variation: ± 2 Hz.
3. The neutral (N) line must not be connected directly to the unit (if necessary use
a transformer).
4. Overcurrent protection of the power supply conductors is not provided with the
unit.
5. The factory installed disconnect switch(es)/circuit breaker(s) is (are) of a type
suitable for power interruption in accordance with EN 60947-3 (corresponds to
IEC 60947-3).
6. The units are designed for connection to TN networks (IEC 60364). In IT networks
the use of noise filters integrated into the frequency variator(s) make machine
use unsuitable. In addition, the short-circuit holding current characteristics have
been modified. Provide a local earth, consult competent local organisations to
complete the electrical installation.
7. Electromagnetic environment: classification of the electromagnetic environment
is described in standard EN 61800-3 (corresponds to IEC 61800-3):
-
Immunity to external interference defined by the second environment***
-
Interference emission as defined in category C3
†
• Due to the harmonic currents the integrated frequency variator in the 30XW-V/
30XWHV units is a source of interference. An analysis may be required to verify
if these interferences exceed the compatibility limits of the other devices
connected to the same power supply network. The compatibility levels inside
an electrical installation, that must be met at the in-plant coupling point (IPC) to
which other loads are connected are described in standard 61000-2-4.
Two characteristics are required for this analysis:
- The short-circuit ratio (Rsce) of the installation calculated at the in-plant
coupling point (IPC).
- The total harmonic current distortion rate (THDI), calculated for the machine at
maximum capacity.
• Derived currents: If protection by monitoring the leakage currents is necessary
to ensure the safety of the installation, the presence of derived currents
introduced by the use of frequency variators in the unit must be considered. In
particular the reinforced immunity protection types and a control value not lower
than 150 mA are recommended to control differential protection devices.
NOTE: If particular aspects of an actual installation do not conform to
the conditions described above, or if there are other conditions which
should be considered, always contact your local Carrier representative.
* Generally the recommendations of IEC 60364 are accepted as compliance with
the requirements of the installation directives. Conformance with EN 60204-1
is the best means of ensuring compliance with the Machinery Directive.
** The required protection level for this class is IP21B or IPX1B (according to
reference document IEC 60529). All 30XW-V/30XWHV have IP23 units fulfil this
protection condition.
*** Example of installations of the second environment: industrial zones, technical
locations supplied from a dedicated transformer.
† Category C3 is suitable for use in an industrial environment and is not designed
for use in a public low-voltage system that supplies residential locations. As an
option, conformity with category C2 permits this type of installation.
