48V Switched Mode Rectifier Module 100A

SALIENT FEATURES

  • Micro-controller based design available for use as standalone unit or as a Module of a Rack Power System for powering Telecom Equipment as well as charging back up batteries in Float Rectifier-cum-Charger Mode.
  • Advanced Design providing near Sinusoidal Input Current with low harmonics distortions and near unity Power Factor.
  • Modular Design for parallel operation to meet requirements of higher system currents ensuring equal current sharing among rectifiers.
  • Compact and lightweight suitable for mounting in racks with capacity to accommodate 6 / 7 Rectifier modules in multi rack system besides Monitoring & Control Unit.
  • LED Alarm Panel to display status of operation of rectifier.
  • Efficiency < = 90% (typical).
  • Detection & indication of Alarm conditions.
  • LCD display of Voltage & Current.
  • Over Voltage and Over Current protection.
  • Type Approved to TEC / BSNL specifications
TECHNICAL SPECIFICATONS
AC Input Nominal 400V AC, Three Phase. AC Range-340 – 440V, Frequency- 48 – 52Hz.
DC Output     Float Mode-48 – 56V DC, Charge Mode- 51 – 56V DC
Efficiency Better than  90% at Full Load and nominal input. 
Power factor    Near Unity.
Output Regulation ± 1% of the half load voltage over full input range & 25 to 100% output current range.
Psophometric Noise 

<2mV with battery,

 <4mV without battery.
Transient Response   ± 5% for 25-100% or 100-25% load step or Input step over 340-440V or 440-340V.
Protection 
        • Short Circuit.
        • Output Over Voltage Circuit.
        • Current Limiting.
Alarm & Status LEDs 
  • AC Power               
  • Rectifier Fail
  • Float Charge
  • Rectifier Disable
  • Auto charge
  • Over Volts
  • Low Voltage
  • Over Load
  • Current Limit
  • Fan Fail
Display    LCD Display for Output voltage and current.
Cooling               Forced Air Cooling.
Environment Specifications

Temperature :  0 – 50 degree centigrade,

Humidity :  95% Max.
Mounting  Stand alone or in 19” rack.
Physical Dimensions (Maximum)

Height:     200 mm.
Width:       483 mm.
Depth:      450 mm.  

               

Medium Capacity Rack Power System –48V, 100A to 3000A

SALIENT FEATURES

  • Modular Rack Power systems up to 3000A Capacity with flexible configuration using 100A rectifier Modules.
  • AC Mains Connection (Three Phase).
  • Near Unity Power Factor.
  • Near sinusoidal Input Current.
  • Provides better than 90% Efficiency at full load, Nominal input Voltage.
  • Low Input Distortion.
  • Efficient Monitoring and Control Module to monitor system parameters provide extensive information on System Status and Alarm Conditions.
  • Alphanumeric display Showing Load and Battery Voltage and Current and other system parameters.
  • Detection and Indication of Alarm Conditions.
  • Customer specific Battery Isolation System for 2,3 or 4 batteries.
  • Temperature Compensation of battery Float Voltage.
  • Configurable DC Distribution.
  • Automatic switch over from Auto Charge Mode to Float Mode or Vice Versa
  • Battery Interconnection Module equipped with LVD (optional) Contractor for Battery and Load Current Monitoring Shunts.
  • Optional two stage Low Voltage Disconnect.
  • High AC Voltage Disconnect.
  • Forwarding of Alarm Conditions to remote location.
  • Standard 19” rack size.
  • Type Approved to TEC / BSNL Specifications.

 
SYSTEM CONFIGURATIONS

The Rack Power System consists of: -
19” Master Rack with Monitoring & Control Module (MCM).
19” Slave Rack with AC Distribution Module.
100 Amps Switch Mode Rectifier as Basic Power Module.
Battery Isolated System (Customized)
Interconnection Cable & Bus bar Set
DCDB Rack (as per customer requirement)
TECHNICAL SPECIFICATIONS
AC Input                  Nominal 400V AC, Three Phase. AC Range-340 – 440V, Frequency - 48 – 52Hz.
DC Output      Float Mode-48 – 56V DC, Charge Mode- 51 – 56V DC
Power factor     Near Unity.
Offered Capacity  Up to 3000A for 100A SMRs.
DC Distribution      Custom configurable as per requirement.
LVD Single / Two Stage
Disconnect Voltage      44.4V(Reconnect 51.5V)
Temperature Compensation 3mV / degree Centigrade / cell.
Metering  ·         AC Input Voltage.
·         Load Voltage
·         Battery Voltage
·         Load Current
·         Battery Current
·         System Current.
Alarms and Visual Indications : ·         AC Available
·         AC Abnormal
·         Load UV
·         Load OV
·         Over Load
·         Rectifier Fail
·         Float / Charge
·         MBD
·         LVD
·         Battery isolation
Status   LED Indications for : -
·         AC Available.
·         System OK
 ·         LVD.
·         System on Float Mode
·         System on Charge Mode.
Remote Alarms   Normally both open & close potential free contacts are provided on 25-pin D-connector for the following Alarms: -
·         Load Over Voltage.
·         Load under Voltage.                                                                              
 ·         AC Abnormal.
·         Low Voltage Disconnect.
·         System Faulty.
·         Rectifier Fail.
·         CB-Trip Battery isolated
·         Mains – ON / Battery Discharge.
Remote ON / OFF     Rectifier can be disabled externally.
Remote Charging    SMRs can be made to operate in Auto Change Mode externally.
Cooling    Rectifiers are forced air-cooled.
Environment Specifications Temperature :  0 – 50 degree centigrade, Humidity :  95% Max.
Physical Dimensions (Maximum)  : Rectifier    
Height      :  200 mm.
Width       :  485 mm.
Depth       :  450 mm.
Weight     :  24 Kg. (approx).
Rack  Multi Rack Configuration with each rack of dimension as under :                             
Height      : 2167 mm (45 RU) / 1633 mm (33 RU).
Width       : 600 mm.
Depth       : 600 mm.
 
 
 
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