The system is of modular design with international standards. The modules are easily accessible from the front. As N+1 configuration is adopted, it is very convenient for users to change or enlarge the configuration. The system also can be installed beside communication equipment because of its excellent electricity and magnet compatibility and strict safety requirements. With perfect centralized monitor and remote control and intelligent management function, the system can perform remote monitor and control for various communication power supplies without human attendance. The rectifier apply advance theory of full-wave bridge rectifier, pulse width modulation(PWM) technology and power factor compensation technology, the rectifier also guarantees reduction of energy dissipation , the power factor 0.99 or above, the efficiency up to 91% and operating frequency at 50KHz.
Application:
1. Telephone exchange PBX, PABX.
2. Mobile communication system.
3. Digital fiber optics transmission system.
4. Digital loop carrier.
5. Microwave communications.
6. Other- 48Vdc power critical.
1. A48/35/140 shelf: AC input. (1) Nominal voltage: 220 Vac. (2) Operating voltage range: 176.264Vac (1P2W+G). (3) Current: 44A (max.). (4) Frequency: 47.63Hz. (5) Output voltage: 48V (44V.62V adjustable). (6) Output current: 0 ~140A. (7) Input breaker: 50A NFB. (8) Output breaker: Load - 63A NFB x 3; battery - 63A NFB x 1. (9) Battery LVDS: 100 A(option). (10) Dimension: 484 W x 265 H x 390 D mm (19"); 584 W x 265 H x 390 D mm (23"). 2. A48/35 rectifier: AC input. (1) voltage: 143.297 Vac(1P2W+G). (2) Current: 11A (max.). (3) P.F: ≧0.99 at 50%~90% load. (4) Efficiency: ≧91% at 50%~90% load. DC output. (1) Voltage: FL/EQ 44V.62V (adjustable) ; 42V~60V (option). (2) Current: 0 .35A. (3) Power: 1680 watts. (4) Current limit: 5 .35A(adjustable). (5) Voltage regulation: ≦±1%. (6) Current share: <±5%. (7) Soft start: ≧3 sec. (8) Dynamic transient response: max ≦5%，1ms recovery <1%. (9) Static response:≦±0.2%. (10) Audio noise: ≦32dBrnc (≦24dBrnc with battery). (11) Wide band noise: ≦10mVrms(10k~100MHz). (12) Audible:≦50 dBa. Environmental: (1) Temperature: -5℃~50℃. (2) Humidity: up to 90% RH (non condensing). (3) Cooling: internal fan with thermal control. 4. Mechanical: (1) Dimension: 140 W x 120 H x 370 D mm. (2) Weight: 6.0 Kg.
Taiwan
