VSD Ride-Thru Controller
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DCBRC
Adding a Model DCBRC-RT to any
fixed bus inverter makes it surpass SEMI-47 compliancy specifications. Adding
Electrolytic or Ultra capacitor storage reservoirs will allow meeting up to 5
seconds of outage specification. Adding a battery energy storage reservoir and
charger to Model DCBRC-BR allows the system to meet outage specifications of 15
seconds to 15 minutes or longer.
For applications with SEMI-47 or
50% sag specification DCBRC-RT is the most cost effective solution for holding up
a fixed bus inverter. For 100% outage applications the DCBRC-RT becomes an energy
reservoir voltage regulator. When using a DCBRC-RT to regulate an energy storage
bank for applications under 5 seconds outage, electrolytic capacitor banks can
are cost effective. For applications between .5 to 5 seconds Ultra capacitors
could be used. For applications between 5 seconds and 15 minutes Batteries must
be considered.
The majority of AC line voltage
fluctuations that occur in three-phase distribution systems have a magnitude
(decrease from nominal voltage ) of less than 50% and duration of less than 2
seconds. the model DCBRC-RT DC RIDE-Thru Control module provides sufficient ride
through capability to handle these types of voltage sags. However, 100% power
outages can still occur, and even one such instance can be costly. For the
reason, the DCBRC-BR (Battery Ride- Thru) and DCBRC-CR (Capacitor Rude-Thru)
series of Full Outage DC Bus Rude- Thru Modules incorporate additional Bus
Support Modules (BSMs) with the base DCBRC-RT Controller module. These BSMs,
which can be battery banks or capacitive energy reservoirs, allow the RTM to
supply DC bus power to the inverter during total outages of a predetermined
duration, in addition to its normal sag protection, to allow sufficient time for
auxiliary power systems to engage before shutdown occurs. Or, it may allow the
drive system to ride through occurs. Or, it may allow the drive system to ride
through the outage completely thus avoiding the problems associated with other
power supply backup methods.
FEATURES &
BENEFITS
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Lower cost
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Smaller footprint
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Fusing included
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Connects to most drives
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Makes drive SEMI-47
compliant
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100% outage capability with
add on storage
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Sag activity counter for PQ
monitoring option
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