Starting Electric Motor; Ground Connection; Extension Cables; Procedure To Determine The Necessary Transversal Section In Cable Extension - ENAR VGR6 Manual De Instrucciones

5.2 STARTING ELECTRIC MOTOR

1. Before starting the work, check the correct working of all handling and safety devices.
2. Make sure voltage and frequency are the specified on the motor
3. After connecting the drive, plug in to the electric supply, make sure the switch is in "0" position
4. Switch on to position 1. The three phase motors are equipped with a clucth. If the running is
not counterclockwise, the movement won't be transmitted. Move the switch to the other
positon to change the phase.
If defects are found in the safety devices, stop working and do the maintenance.

5.3 GROUND CONNECTION

To protect the user from an electrical shock, the motor should be correctly ground connected.
The motors are equipped with a 3 pins socket (single phase) or four pin socket (three phase) and
their respective plugs. The adequate earth socket should be used to connect the motors.

5.4 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 according to:
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
I.e.
Entering the curve with Current 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).
I. e.
MINIMUM SECTION ACCORDING VDE RULES
Line Maximum
mm² A
1 15
1,5 18
2,5 26
4 34
6 44
10 61
16 82
25 108
PETROL ENGINE-ELECTRIC MOTOR-FLEXIBLE SHAFT AND POKERS
VGR6, VGH5, VGE5, VYD, VHD, VLD - VPA, VPAME - TNR - ANR
Voltage nominal:........................... 1- 220 V 50 Hz
Nominal current:............................ 10 A
Cable length:................................. 100 m
For 10 A, according to table for 15 A or less, the section is of 1 mm
Therefore, the section chosen is equal to 4 mm
highest transversal section of the two verifications
Max fuse
A
10
10 / 3 – 16 / 1
20
25
35
50
63
80
2
section
2
.
2
, Always choose the
en
9