Charging rectifiers
Charging rectifiers for uninterrupted power for applications where availability
is a high priority in power stations, transformer stations and the process
industry.
These rectifiers have been developed for charging stationary lead or
alkaline batteries and have a rugged and reliable design. Several rectifiers
can be operated in parallel to provide additional capacity, availability
and reliability.
A powerful monitoring unit that continuously monitors the batteries,
rectifier and installation is built into the rectifier or supplied as
a separate unit. The use of dual circuits ensures the reliability of
the power supply, since the rectifier and monitoring circuits are independent.
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PRX charging rectifier with monitoring
Output: 24-125VDC / 9-60ADC
The PRX charging rectifier is light, compact and needs a minimal
wall area. The built-in battery monitoring circuit in PRX provides
lower operating costs and greater reliability.
Plug-in rectifier modules gives flexibility for selection of output
power, easy maintenance by hot-swap and high availability by parallel
modules.
The rectifier is housed in a wall enclosure with ample space for
the connection of large cables to allow easy installation.
 Read
more |
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PCR charging rectifier with monitoring
Output: 24-500VDC
/ 5-100ADC
The PCR charging rectifier is light, compact and quiet because it
uses soft switching technology. The built-in battery monitoring
circuit in PCR provides lower operating costs and greater reliability.
A
clear indication of the equipment status is provided by a graphic
display. Settings are made using function keys, and alarms are
given in clear text to ensure ease of operation.
The rectifier
is housed in a wall enclosure with ample space for the connection
of large cables to allow easy installation.
Read more |
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UNIQ charging rectifier with monitoring
Output: 24-220VDC / 25-400ADC
The UNIQ charging rectifier uses robust thyristor technology with
plug-in cards and discrete components. The rectifier is housed
in a floor enclosure and is available in special enclosures to
comply with IP43, tropical specification, seismic specification
and nuclear industry classification level 1E.
UNIQ’s built-in
monitoring of batteries, rectifier and distribution equipment provides
high availability and low operating costs. Settings are made using
function keys, and alarms are given in clear text to ensure ease
of operation.
Read more |
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KL charging rectifier
Output: 24-220VDC / 25-400ADC
The KL charging rectifier uses robust thyristor technology with
plug-in cards and discrete components. The rectifier is housed
in a floor enclosure and is available in special enclosures to
comply with IP43. The KL rectifier has meters that display output
voltage and output current, and can be equipped with a communication
unit for connecting a separate KraftMaster monitoring unit (optional
equipment).
Read more |
 KraftMaster
monitoring unit |
KraftMaster monitoring unit
Input:24V-220VDC
KraftMaster is a powerful monitoring unit that covers the entire DC system, including
the mains supply, charging rectifier, batteries and distribution.
The unit is housed in a 19” rack that can be installed in a
control cabinet of your choice and linked to a KL charging rectifier
using a twin-wire KraftNet databus. Settings are made using function
keys, and alarms are given in clear text to ensure ease of operation.
Read more
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How do I choose a charging rectifier?
- Nominal voltage of battery
system?
- Maximum current required to supply base load and recharging
simultaneously? We can help you calculate this.
- Monitoring of
DC system, integrated in rectifier or provided by a separate unit?
- Compact
design (switch mode) or traditional configuration with plug-in card?
For
charging rectifier, monitoring and distribution in one cabinet, see
DC system.
| Charging rectifiers/characteristics |
| |
PRX |
PCR |
UNIQ |
KL |
| Topology |
HF-soft switch |
HF-soft switch |
Thyristor converter |
Thyristor converter |
| Output voltage/current |
|
|
|
|
| 500/440V DC |
- |
7A-25A |
- |
- |
| 220V DC |
- |
5A-50A |
25A-300A |
25A-300A |
| 125/110V DC |
9-20A |
5A-100A |
25A-400A |
25A-400A |
| 48V DC |
12A-50A |
10A-100A |
25A-400A |
25A-400A |
| 24V DC |
20A-60A |
10A-100A |
50A-400A |
50A-400A |
| Mains supply |
Single phase |
Single or three-phase |
Single or three-phase |
Single or three-phase |
| Features |
|
|
|
|
| System monitoring |
Microprocessor |
Microprocessor |
Microprocessor |
Microprocessor |
| Ground fault monitoring |
Yes |
Yes |
Yes |
- |
| Battery monitoring: |
|
|
|
|
| Fault: Battery circuit test |
Yes |
Yes |
Yes |
- |
| Short circuit: Midpoint measurment |
Yes |
Yes |
Yes |
- |
| Cell voltage monitoring |
- |
- |
Option |
- |
| External LS-monitoring, KM19, via twin-wire bus |
- |
Option |
- |
Option |
| Enclosure |
Wall enclosure |
Wall enclosure |
Floor cabinet |
Floor cabinet |
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