Eaton Powerware 9155 User Manual download pdf (Page 4)

Highlights that

(almost) let you

forget about

power

Active power factor

control for less

disturbances in

low-voltage networks

Thanks to their cuttingedge

active-front rectiﬁ er, the 9155

and 9355 provide a perfect

sine-wave input and 0.99 in-

put power factor. This means

that they avoid disturbances

in the feeding mains network

that energy converters tend

to cause. With minimal cur-

rent distortion (2-5% THDi)

the 9155 and 9355 are ex-

tremely “mains-friendly”

and do not require special

harmonics ﬁ ltering.

Hot Sync—unbreak-

able security

Hot Sync parallels two or

more UPS units. Units are ca-

pable of load sharing without

the need for communications

wiring, hitherto the most vul-

nerable point of failure in all

UPS systems. Each module

has the ability to synchronise

and support the critical load

independently of the other

modules. Thus all critical

loads are supported by UPS-

grade power, whatever main-

tenance needs—scheduled or

unscheduled—should arise.

Hot Sync—redundant is an

N+1 module system allow-

ing full maintenance to be

performed on all modules

and the parallel cabinet with-

out the need for an external

maintenance bypass and

without having to remove the

critical load from conditioned

power.

ABM—signiﬁ cantly

more battery life

ABM constantly monitors

battery charge status and

only recharges when neces-

sary. Compared with the

traditional trickle charging

method, this reduces battery

corrosion enough to provide

signiﬁ cantly longer battery

lifetimes! ABM compensates

for changes in ambient tem-

perature for proper charging.

Battery monitoring provides

real-time information on bat-

tery string health and remain-

ing runtime. This allows you

to proactively plan mainte-

nance operations instead of

reacting to emerging prob-

lems. UPS tests the batteries

regularly with the rectiﬁ er

connected, thus providing

consistent test results regard-

less of inverter load at testing

time. Moreover, as the load is

never supported by the bat-

tery alone, the UPS will keep

your critical load adequately

protected at all times.

Hot Sync Redundant / Capacity

Tie Cabinet

Load

ABM

TM

with the intermittent charging method

4 EATON CORPORATION Eaton 9155 and 9355

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