CIAT DYNACIAT LG 080, Инструкция по эксплуатации

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6 - ELECTRICAL CONNECTION
6.1 - Electrical connections, control box
18
18
79
26
S
1
1
PE
Legend
1 Main disconnect switch
PE Earth connection
S Power supply cable section (see table “Recommended wire sections”).
NOTES:
The units have only one power connection point located at
the main disconnect switch.
Before connecting electric power cables, it is imperative to
check the correct order of the 3 phases (L1 - L2 - L3).
Non-certified drawings.
Refer to the certified dimensional drawings.
Before connecting the unit check that the phase order in
the customer control box is the same as shown in the
customer wiring diagrams.
6.2 - Power supply
The power supply must conform to the specification on the unit
nameplate. The supply voltage must be within the range specified
in the electrical data table. For connections refer to the wiring
diagrams.
Operation of the unit with an incorrect supply
voltage or excessive phase imbalance constitutes
abuse which will invalidate the warranty. If the
phase imbalance exceeds 2% for voltage, or 10%
for current, contact your local electricity supply at
once and ensure that the unit is not switched on
until corrective measures have been taken.
6.3 - Voltage phase imbalance (%)
100 x max. deviation from average voltage
Average voltage
Example:
On a 400 V - 3 ph - 50 Hz supply, the individual phase voltages
were measured to be:
AB = 406 V ; BC = 399; AC = 394 V
Average voltage = (406 + 399 + 394)/3 = 1199/3
= 399.7 say 400 V
Calculate the maximum deviation from the 400 V average:
(AB) = 406 - 400 = 6
(BC) = 400 - 399 = 1
(CA) = 400 - 394 = 6
The maximum deviation from the average is 6 V. The greatest
percentage deviation is: 100 x 6/400 = 1.5 %
This is less than the permissible 2% and is therefore acceptable.
6.4 - Recommended wire sections
Wire sizing is the responsibility of the installer, and depends on
the characteristics and regulations applicable to each installation
site. The following is only to be used as a guide-line, and does
not make the manufacturer in any way liable. After wire sizing
has been completed, using the certified dimensional drawing,
the installer must ensure easy connection and define any
modifications necessary on site.
The connections provided as standard for the field-supplied
power entry cables to the general disconnect/isolator switch are
designed for the number and type of wires, listed in the table on
the next page.
The calculations are based on the maximum machine current
(see electrical data tables). For the design the following
standardised installation methods are used, in accordance with
IEC 60364, table 52C:
-
For units installed inside the building:
No.13: perforated horizontal cable conduit, and No. 41: closed
conduit.
The calculation is based on PVC or XLPE insulated cables with
copper or aluminium core. A maximum ambient temperature of
40°C has been taken into account. The given wire length limits
the voltage drop to < 5%.
Before connection of the main power cables (L1 - L2
- L3) on the terminal block, it is imperative to check
the correct order of the 3 phases before proceeding
to the connection on then terminal block or the
main disconnect/isolator switch.
Motor
EN-37 Dynaciat LG/LGN