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4 - PHYSICAL AND ELECTRICAL DATA
Electrical data notes and operating conditions, 19PV units
• As standard:
19PV 550 to 19PV 800 units have a single power connection point located
immediately upstream of the main supply disconnect switche.
19PV 900 to19PV 1600 units have two connection points located immediately
upstream of the main supply disconnect switches.
• Control box includes the following standard features:
- Two disconnect switches per circuit: One main supply disconnect switch and
one disconnect switch for the supply of the control part, the undervoltage
protection circuit and the motor mechanism module,
- Filtering compressor currrent devices
- Anti-short cycle protection devices
- Control devices supply by internal transformers.
• Field connections:
All connections to the system and the electrical installations must be in accordance
with all applicable codes.*
• 19PV units are designed and built to ensure conformance with these 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.
• Generally the recommendations of IEC 60364 are accepted as compliance with
the requirements of the installation regulation.
• Annex B of standard EN 60204-1 specifies the electrical features used for the
operation of the units. The features below complete the informations given in this
document:
1. Physical environment:
The classification of environment is specified in standard EN 60364:
- Indoor installation**,
- Ambient temperature range: minimum temperature +5°C to +42°C, class AA4
- Altitude: AC1 of 2000 m or less,
- Presence of water: Class AD2 (possibility of water droplets)**
- Presence of hard solid: Class AE2 (no significant dust present)**,
- Presence of corrosive and polluting substances, class AF1 (negligible),
- Competence of persons: BA4 (Persons wise),
- Overvoltage category: II (2,5KV).
2. Compatibility for low-frequency conducted disturbances according to class 2
levels per IEC61000-2-4 standard:
- Power supply frequency variation: +- 2Hz
- Phase imbalance : 2%
3. The neutral (N) line must not be connected directly to the unit (if necessary use
a transformer).
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4. Overcurrent protection of the power supply conductors is not provided with the unit.
5. The factory-installed disconnect switch(es)/circuit breaker(s) 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,if
noise filters are integrated into the compressor(s) variable frequency drive(s),
this will render the units unsuitable for their intended purpose. In addition, the
equipment characteristics in case of insulation failure are modified.
For IT networks, the earth connection must not be at the network earth. 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 C2
Warning: In a residential environment, this product may cause radio interference
in which case additional mitigation measures could be required.
The compressor variable frequency drive is a source of perturbations from the
harmonic currents. An investigation could be necessary to check that the
perturbations don't exceed the compatibility limits with the other devices connected
on the same power supply network. In an electrical installation, the levels of
compatibility to be observed at the internal coupling point (IPC) to which other
loads are connected are described in standard IEC 61000-2-4.
• Leakage currents: If protection by monitoring the leakage currents is necessary
to ensure the safety of the installation, the presence of additional leakage currents
introduced by the use of variable frequency drive(s) in the compressor must be
considered.
In particular, the reinforced immunity protection types and a control value not
lower than 150 mA are recommended when selecting differential protective
devices.
* Generally, the recommendations of the standard of International Electrotechnical
Commission (IEC60364) are identified to meet the requirements of the installation
guidelines.
** The required protection level for this class is IP21B or IPX1B (according to
reference document IEC 60529). All 19PV units are IP23 and fulfil this protection
condition.
*** Example of second environnement installations: Industrial areas, technical facilities
supplied by a dedicated transformer
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