Converter Connection To The System; Procedure To Determine The Necessary Transversal Section In Cable Extension - ENAR AFE 2000 P Manual De Instrucciones

4.3 CONVERTER CONNECTION TO THE SYSTEM

Check the converter switch is off before connecting to the system.
Unless otherwise stated at the time of ordering, the frequency converters three phase will be
connected at the factory as three phase, 400V 50 Hz. The models single phase, will go out of the
factory to be used as 230V 50 Hz single phase charge.
Disconnecting the equipment:
First, stop the vibrating pokers by turning off the proper switch, second stop the converter by turning
off the proper switch, and finally remove the feeding cable from the system.
Earth connection.
To protect the user from an electrical shock, the converter should be correctly connected to earth.
The converters are equipped with three cables (single phase) or four cables (three phase) and their
respective plugs. The adequate earth socket should be used to connect the converters. If the socket
with earth is not available, an earth adapter should be used before connecting the plugs.
Extension cables.
Always use extension cables with earth wire and its respective plug with earth in the female and
male plug.
Do not use damaged or worn out cables.
Avoid heavy loads on cables.
To determine the transversal section, follow the following procedure:
PROCEDURE TO DETERMINE THE NECESSARY TRANSVERSAL SECTION IN CABLE
EXTENSION
Do the following verifications and take the highest section of cable:
1. The ohmic resistance and inductive resistance of the cable with the permitted loss of voltage of 5%,
cosphi=0.8 trough the frequency and voltage curve
Entering the curve with the product: Intensity x Length=10x100=1000 Am We obtain a 4 mm
2. The permitted heating of the cable according to VDE standard ( minimum transversal section table
required).
Therefore, the section chosen is equal to 4 mm
the two verifications
SECCIÓN DE LA LÍNEA EN mm
25
16
10
6
4
2,5
1,5
0 1000
INTENSIDAD NOMINAL X LARGO DE LÍNEA (A m)
FRECUENCY CONVERTERS
AFG, AFD, AFE
I.e: Voltage nominal:........................... 1- 220 V 50 Hz
Nominal current:............................ 10 A
Cable length:................................. 100 m
I.e: For 10 A, according to table for 15 A or less, the section is of 1 mm
2
115 V 230 V
2000 3000 4000 5000
2
, Always choose the highest transversal section of
Secciones mínimas según normas VDE
2
) Carga máx. (A)
Sección (mm
380 V
1
1,5
2,5
4
6
10
16
6000
25
2
section
2
.
Fusible máx. (A)
15 10
18 10/3-16/1-
26 20
34 25
44 35
61 50
82 63
108 80
en
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