MODVAR Low voltage reactive power |
ABB Instruction manual 8
1. Fuses
2. Cable from fuses to
contactor
3. Contactor
4. Cable from contactor to
reactor
5. Reactor
6. Cable from reactor to
capacitor
7. Discharge resistors
8. Capacitors
4.2 Electrical installation
Electrical connection overview
Figure 4.3: MODVAR electrical
connection diagram
Supply cable sizing
The cables must be sized for a current of 1.5 times nominal
current (In) minimum. The nominal current can be calculated
with the following formula:
Formula abbreviations
− Qn - reactive power output in kvar
− Vn - line voltage, phase-to-phase
The temperature around the cables must also be considered
according to cable manufacturer.
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𝐼𝑛=
𝑄𝑛
415𝑉 ∙ √3
[1]
