Power Distribution Frame

Power Distribution Frame (PDF)

A Power Distribution Frame (PDF) is a system designed to provide telecommunication equipment with direct current through protective device. PDF distributes DC voltage of battery to the various circuits in RBSC and MSC Telecom installation sites. The equipment is generally used in applications where a power plant is with low ohmic distribution. It is used to supply power to transient sensitive electronic telecom equipments. The frame is advantageous as it limits the current during a short circuit at any of the distributed outputs without disturbing operation of other circuits. In case of short circuit at any of the output, the voltage at all other outputs will remain unchanged. The equipment has cabinets, distribution unit, distribution circuit breaker filter module and central supervisory unit. It supports 132 distribution outputs of -48 V, which can be taken out for different loads.

Products Features

• Operation with 48 V Battery supply of the Power Plant at Telecom sites
• Two filter units (one hot stand-by) to give extra filtering to 48V supply
• Isolation and fuse protection provided in 48V path
• The system can be equipped with maximum 6 distribution units
• Each distribution unit has a capacity of 22 distribution circuit breakers
• Circuit breakers can be of capacity 10A, 30A and 50A
• 132 (22 x 6) distribution outputs of -48 V can be taken out for different loads
• Internal wiring & connections are made for ease of unit exchange
• System has Monitoring units & Alarms for each output