Eaton NEMA 1, Instruction Booklet

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Instruction Booklet IB157001EN
Effective May 2015
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned filter) low voltage (600 V and below), NEMA 1
NEMA 3R (outdoor) enclosed versions
EATON
www.eaton.com
Table 7. Rated current values in amperes
kVAR 240 Vac 480 Vac 600 Vac
1 2.4 — —
1.5 3.6 1.8 —
2 4.8 2.4 —
2.5 6 3 —
3 7.2 3.6 —
4 9.6 4.8 —
5 12 6 4.9
6 14.4 7.2 —
7.5 18 9 7.4
8 19.2 9.6 —
9 — 10.8 —
10 24 12 9.8
12.5 30 15 12
15 36 18 15
17.5 42 21 17
20 48 24 20
22.5 54 27 22
25 60 30 25
27.5 — 33 27
30 72 36 29
32.5 78 39 32
35 84 42 34
37.5 90 45 37
40 96 48 39
42.5 102 51 42
45 108 54 44
50 120 60 49
55 — 66 54
60 144 72 59
65 — 78 64
70 168 84 69
75 180 90 74
80 192 96 78
85 — 102 83
90 216 108 88
100 240 120 98
120 288 144 118
125 — 150 123
140 336 168 137
150 360 180 147
160 384 192 157
180 432 216 176
200 480 240 196
225 — 270 221
250 — 300 245
300 — 360 294
350 — 420 343
400 — 480 392
Operating features
During normal operation, cleared fuse indicator lamps will
not illuminate. When a fuse clears on an energized unit, the
associated lamp will glow.
Unipak detuned filters are equipped with a self-resetting reactor
over-temperature indicator lamp . Thermal overload indicating light
activates when reactor temperature reaches 180 °C .
Reactor cabinet thermal overload and cleared fuse indicator lamps
Maintenance
The following maintenance items require the capacitor to
be energized and should be performed only by trained and
qualified personnel .
m WARNING
ONLY QUALIFIED ELECTRICIANS SHOULD HANDLE THE INSTALLATION AND
MAINTENANCE OF THIS CAPACITOR BANK; OTHERWISE, ELECTRIC SHOCK,
ARC FLASH, OR FIRE MAY OCCUR.
Retorque
Before handling the capacitor, disconnect all and any electrical
power supply from the circuit into which the capacitor bank is being
installed . Extreme caution must be taken to prevent accidental
contact with the terminals of the capacitor during installation,
operation, and service of this equipment . Accidental contact with
the capacitor, if not properly discharged, can result in personal injury
or death .
After five minutes of removing all power from the capacitor bank,
the capacitors inside the enclosure can be accessed by shorting all
terminals and then grounding the leads using an insulated shorting
jumper wire . Using a DC voltmeter, confirm that the capacitor has
entirely discharged as evidenced by zero voltage present between
the capacitor terminals prior to performing installation, operation,
or service of the capacitor bank . Accidental contact with energized
parts may cause personal injury or death .
Generally, power factor capacitor banks are considered to be
maintenance free . Over time, the capacitance value may decrease,
especially when self-healing occurs .