48 VDC dla telekomunikacji. DC power supply system for telecommunication SDCB 250. SDCB – Power & Battery cabinet in one device.

Siłownia.

General description:

The SDCB 250 power supply system is intended for uninterruptible supply of 48Vdc loads by direct current in direct full-float operating mode. The construction of the system using cooperation of rectifiers type PDC 48/41-2000W or PDM 48/41-2000W and batteries under control of advanced Pi1 controller.

Application:

+ telecommunications and teletransmission;

+ IT applications;

+ industrial automation systems.

Design of the system:

In its standard version the power supply system is in form of stand-alone cabinet with internal usable height 43U or 38U.

+ distribution area AC/DC -10U height;

+ Rectifier subrack 6U for installation up to. 6pcs. of rectifier modules;

+ adjustable every 1U battery space depends on used battery type;

+ microprocessor control unit Pi1 with OLED color display (or with LED diodes), manipulator, RS232 or USB port for PC connection;

+ for power supply system without a display and manipulator there is a possibility to order a portable user interface with OLED display;

+ battery protections - NH00 fuse holder with 160A fuses- 2 pcs.;

+ load protections: - critical group - max. 10x MCB and 2x NH00, - not critical group - max. 12x MCB or: - not critical group 1 - max. 6x MCB, - not critical group 2 - max. 6x MCB;

+ signaling actual state of loads and battery protections (fuses, MCBs);

+ contactors intended for protection of battery against too deep discharge and selective cut off groups of loads: - K1 cuts off group of critical loads, - K2 cuts off first group of not critical loads, - K3 (option) cuts off second group of not critical loads;

+ control of AC mains presence (KZF);

+ measurement of output voltage and current;

+ summary battery current measurement;

+ extended AC distribution with switch: AC mains - Gen-set, residual current device (option);

+ STB - Battery Testing System - automatic and maintenance-free battery diagnostics during normal operation (option).

Rectifiers:

Following rectifier modules may be installed in the system:

+ PDC 48/41-2000 with nominal output power 2000W;

+ PDM 48/41-2000 with nominal output power 2000W.