RT9 Powershelf
Rectifier Technologies
158-1806-01.doc
5
2-Mar-06
2. Configuration
2.1 General Description
RT9 Powershelf systems are turn-key DC uninterruptible power supply solutions (DC UPS)
for powering 24VDC or 48VDC telecommunications and industrial equipment. The
Powershelf provides integrated battery management functions for a range of battery types
(VRLA, flooded Lead-acid, NiCd, Ni-MH, Li-polymer) to enable easy commissioning of a
DC UPS or it can be used as a standalone DC source when no batteries are used.
The Powershelf provides the following integrated features:
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battery (& load) distribution
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battery & load circuit breaker trip sensing
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battery charge current limiting
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short circuit and reverse polarity protection
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battery temperature sensing
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n+1 redundant rectifiers
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low voltage disconnection
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a monitoring and control module (MiniCSU-3)
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automated/remote battery discharge testing
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super capacitor backed real-time system clock
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accurate temperature compensated Float and
Equalisation voltages
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optional remote communication capability,
including web-based protocols
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optional modules for monitoring AC power and
battery cell voltages
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all rectifiers and the controller are hot-swap and
plug-and-play capable
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optional AC distribution
2.2 System Description
2.2.1 Front View
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Figure 2.1 System blocks (PSLF-1110)
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Figure 2.2 System blocks (PSLF-1115)