SCR rectifiers 25 A – 200 A
INTRODUCTION (i/ii)
Linear and Switching rectifiers are the main AC/DC power converters
technologies.
First technology has a number of features with regard to the switching one
that make them to be selected for supplying the critical loads in industrial
environments.
INTRODUCTION (ii/ii)
Linear rectifiers vs Switching rectifiers:
- Better regulation of mains and load.
- Better response time.
- Lower electrical and acoustic noises.
- Lower DC output voltage ripple.
- Fast recovery against transients.
- Lower perturbations levels and better EMC features.
- In general, they are simple, robust, reliable, with easy
maintenance and with low operating costs.
GENERALS (i/ii)
• Three phase rectifier-charger series
based on the updated Silicon Controlled
Rectifier technology and controlled by a
microprocessor.
• Sizes of 25, 50, 75, 100, 150 and 200 A
with 110, 120, 125 and 220Vdc outputs.
• Standard back up times between 0 and
120 min.
• Stabilized output accuracy better than
±1%.
GENERALS (ii/ii)
• Ready to charge Flooded or maintenance free
Lead Acid batteries, as Ni-Cd.
• Digital control system with a LCD + LED
synoptic for alarm monitoring and indication of
the status.
• Customized charge management for each type
of battery.
• Customized system to the particular needs of
each application.
MAIN FEATURES (i/iii)
• Galvanic input/output isolation by means of the transformer.
• Full bridge of 6 pulses (12 pulses as an option).
• Three phase input (3x400V+N or 3x220+N).
• Soft start in ramp of 10 sec.
• THDi < 35% (antiharmonic filter as an option)
• Natural cooling.
• DC output earth fault detection and alarm with visual indication as standard.
MAIN FEATURES (ii/iii)
• 3 charge status: floating, boost and exceptional.
• Adjustable floating voltage (±15%) and compensated by the temperature.
• Equalising/boost charge (0,2C), set through the LCD or automatic every 6 months (prog.)
• Manual exceptional charge, set through the LCD.
• Electrolyte level probe for Ni-Cd batteries.
• Adjustable battery charge: 0,1C to 0,3C.
• Recharging time up to 80% in 4 hours (0,2C)
• Total monitoring through the LCD panel.
MAIN FEATURES (iii/iii)
• System protected with current limit.
• Automatic Low Voltage Device (LVD) or over temperature disconnector.
• Efficiency up to 93%
• DC output ripple < 1%
• Alarms grouped in urgent and non-urgent alarms.
• Protections against over and under voltages.
• Communication module with serial ports and customized relays.
SYNOPTIC (i/ii)
• 4 LED :
• Correc output voltage indicator.
• Mains fault indicator.
• Urgent alarm indicator
(customizable).
• Non-urgent alarm indicator
(customizable).
• Multi-language LCD panel of 2x16
characters. Menus of measurements,
manoeuvring, parameters, alarms,
settings, etc.
SYNOPTIC (ii/ii)
• The digital control manages the
alarms, monitoring and
indicators of the status.
• Navigation keypad.
• ESC key for escaping/cancelling and ENT key
for validating/acknowledging and alarm.
COMMUNICATION MODULE

 

• Assembling fitted in the front side of the cabinet.
• MODBUS communication protocol as standard (other options).
• Free slot for SICRES tele-management card or RS-232 interface. 
• RS-232  and RS-485  ports.
• Interface with 9 programming dry contacts. 
• Battery temperature probe input. 
• Electrolyte level probe input for Ni-Cd batteries. 

OPTIONS (i/ii)
• 12 pulses rectifier with isolation transformer.
• Dropping voltage diodes to drop the output voltage in case of boost charge.
• Input anti-harmonic filter to get THDi < 10%.
• MCB protection tripping alarm.
• Parallel redundant connection of two systems by means of an output diodes.
• Anti-condesation heaters for humid environments.
OPTIONS (ii/ii)
• Different types and battery technologies (SLA, flooded lead acid, Ni-Cd…).
• Other protection degrees for polluted, dusty, dirty, etc. environments (up to IP43).
• Other input voltages under request.
• Other back up times longer than 120 minutes.
• Top entry cable.
• Communication software.
• SNMP adaptor with MODBUS protocol via TCP/IP.
SINGLE LINE DIAGRAM (i/ii)
Input
Protec
switch
Input
transformer
AC/DC converter
(Rectifier)
LC
filter
Backfeed
diode
Rectifier
Output prot.
Output
switch
Output
filter
DC
Output
AC Input
Input
filter
Battery
Communications
Battery prot.
SINGLE LINE DIAGRAM (ii/ii)
• Full bridge SCR rectifier.
• EMC input/output filters  CE marking.
• LC output filter for low DC ripple.
• Microprocess controlled , current and voltage PID servos.
• Floating voltage enables to earth any of the DC output poles.
• Protections: AC input, DC output, two poles battery fuses and general output fuse.
APPLICATIONS (i/ii)
DC power-L rectifier-charger systems have been designed as robust rectifiers for critical
loads to deal with the most demanding and hard environments as well as to charge any
type of battery, like the flooded lead acid batteries or Ni-Cd.
APPLICATIONS (ii/ii)
Among the most frequent applications, there are:
• Industry of electrical generation.
• Electrical power stations – power supply of the protections.
• Oil pipeline.
• Gas pipeline.
• Petrochemical industry.
• Mining activity.
• Railway installations.
• Telecommunications.
• Hospitals.
• Industrial processes.
•…
STANDARD RANGE
110Vdc
125Vdc
220Vdc
Thank you for your attention
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