Telegroup PCRL8/14, Руководство пользователя

Страница: 14 / 51

p. 14 / 43
Power KVAR Icc max kA KVA Vcc% Icc kA
Da 7.5 a 40 1.5 50 4 1,8
Da 45 a 55 2.5 63 4 3,6
Da 65 a 75 8 100 4 5,77
Da 87.5 a 250 15 160 4 7,22
Da 275 a 400 20 200 4 9,02
Da 450 a 750 50 250 4 11,37
315 4 14,43
400 4 18,04
500 4 22,73
630 4 19,25
800 6 24,06
1000 6 30,07
1250 6 38,49
1600 6 48,11
2000 6 50,14
To connect an automatic PFC panel to the network, it is necessary to have a C.T. (current
transformer) having a secondary rated current of 5 or 1 A not supplied with the product but charged
to the customer.
The primary rated current of the C.T. must be chosen according to the rated current of the line
regardless of the power of the power factor correction bearing in mind that the measuring range of the
regulator current ranges from 8% to 110% of the current of the C.T. therefore, this condition must be met.
Eg: there is a circulating current of 200 / A. A T.A. will have to be chosen. whose current ranges from: 2500 A (8%
of 2500 = 200 / A) and 180A (110% of 180 A = 200 / A). It is a good rule to install a C.T. with a double primary
current that is actually circulating, therefore, in the case of the example, a C.T. will be selected. with
primary current of 400 A.
To connect the equipment to the network some simple operations are necessary that must be absolutely respected.
The sequence of the main operations necessary for this purpose can be summarized as follows:
1. Ground the secondary of C.T ..
2. Supply the equipment with cables of adequate cross-section according to the rated power.
3. Power supply: three-phase + Pe (unless otherwise requested)
4. Anchor the power cables to the main switch according to the phase sequence.
If you want to switch off the panel during operation, make sure, before opening the main switch, that you have
disconnected all the batteries, following the instructions (see MAN mode)
• The C.T. must be positioned on the phase (R - L1), upstream of the loads and the line that feeds the power
factor correction panel.