Lucent Technologies CPS4000 - Output Distribution; Overview; Thermal Probes

Lucent Technologies -48V CPS4000/CPS4000 PLUS Cabinet Power System
Issue 13 December 2000 Product Description 2 - 19
Output Distribution
Overview The Output Distribution contains the following:
• BSR1, which provides connectorized terminations
for:
– distribution fuse alarms (J9)
– battery temperature thermal probes (J10-J13)
– plant secondary output loads (J14)
– secondary current monitoring (J15)
• Current sensing shunt to measure battery discharge current
• Double-hole lug termination points to connect:
– plant primary output loads
– four battery strings
• Optional LVD/Thermal Management Circuit Pack (BSP2 or
BSP2C) with:
– Low-voltage disconnect contactor and its control circuit
– Battery thermal management (slope compensation)
– Low temperature compensation
Thermal Probes Thermal probes are included with the -48V CPS system for the purpose
of monitoring battery temperature. Battery temperature should be
monitored in at least two places (two thermal probes) to protect batteries
against potential thermal overload.
The temperature information provided by the probes is input for a
battery thermal protection feature that implements slope compensation;
i.e., if the battery temperature exceeds 25°C (77°F), the plant voltage is
automatically reduced to help protect the batteries against thermal
instability and to extend battery life at high temperatures.
See “LVD/Thermal Management” in Section 7 for more information.
LVD Open
LVD Fail
Temp Comp
Probe Fail
Output Distribution