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Thyrotronic Technical Specification Constant Potential Rectifier
Thy Th y r otr oni c
Float Boost / Equalising
220 V 100 A
Battery test Mains fault Unit fault
V / A
High voltage Low voltage battery Battery circuit fault Battery test negativ Sense line fault
E
Earth fault plus
C
Earth fault minus Option
0
LED Test/Reset
I
Type:
E230 G /BWrug-TDG D400 G / BWrug-TDG
Mains connection voltage:
three phase 400V, +-10% , with neutral single phase 230V, +-10%
Frequency:
60Hz
+-5%
Nominal DC voltage:
V
Nominal DC current:
A
Current limit:
100 % of nominal rating
Characteristic curve:
IU according to DIN 41773, with changeover facility to regulated I-characteristic, with 20% I nominal
Boost-charging:
2,4 V/cell with lead acid cells 1,55 V/cell with Ni Cd cells
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BENNING Float charging:
2,23 V/cell with lead acid cells 1,4 V/cell with Ni Cd cells
Equalise charging:
2,7 V/cell with lead acid cells 1,75 V/cell with Ni Cd cells
Output Voltage accuracy:
1%
Dynamic characteristic: (battery disconnected)
± 5%
Adjusting range:
5%
Output current accuracy:
2%
Voltage ripple:
5% rms
Radio interference:
in accordance to EN50081-1, EN50082-2
Efficiency:
70% up to 95% power dependent
Power factor: At float voltage and Inom
app. 0,8 ind
Noise level:
max. 65 dB (A), measured in 1m distance and half unit height
2/5
after 200ms
Environment conditions:
Temperature:
0°C to +40°C
relative. Humidity:
approximately 75%, non condensing
max. Altitude above normal:
1000m
Moisture class:
with reference to moisture class "F", DIN 40040
Design:
Cabinet:
sheet steel floor mounted cabinet at least IP20, RAL 7032, powder epoxy polyester, cured at high temperature, air self-cooling front-door secured by lock, side and rear panels removable
Dimensions (H x W x D) mm:
x
Weight:
kg
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Connection:
AC and DC-sided, normal terminals or bolt terminals, front side, easily accessible after opening cabinet door
Protection:
Fusible cut-out or NH-fuse link on DC sides Surge suppression capacitors on primary of rectifier RC networks for power semi-conductors aux. Circuit fuses
Transformer:
Air cooled transformer with separate windings
Rectifier bridge:
three-phase chargers have a fully controlled bridge rectifier with electronic control of thyristor gate pulses single-phase chargers have a semi controlled bridge rectifier
Manufacturing standards:
- fire resistant wires are used -Main components inside of the cabinet identified by self adhesive labels
Technical regulations:
All relevant DIN and VDE norms, EN50081-1, EN50082-2, IEC146-1-1, IEC204-1
Features:
Apart from the standard smoothing device for a ripple of 5 % rms the following functions are built in as standard: • • • • • • • • • • • • •
mains monitoring charger output monitoring, current-dependent low voltage monitoring high voltage monitoring with impulse blocking battery low voltage monitoring cyclic battery-circuit test battery availability earth fault monitoring IxR compensation on the battery lead operation mode indication programmable float/boost charge change over hardware basic setting of the controller when CPU fault interface for pc and laptop
Input connections are included for four monitoring options which can be allocated on customer request. A LCD - DC-output voltmeter / DC-output ammeter is integrated in the frontpanel.
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The following visual indications are available as standard: • • • • • • • • • • • • • • • • •
operation battery operation general failure urgent failure float charge float charge/boost charge battery test mains fault unit fault high voltage battery circuit fault battery test negative low battery voltage (LED red) earth fault plus earth fault minus option 1 option 2
The two LED's (red) are provided to enable monitoring of events such as: battery circuit monitoring, fuse monitoring etc. The potential-free alarms `mains failure’, ‘low battery voltage’ and ‘common alarm’ are available. For potential-free single indications an optional relay card is available which can provide 7 single indications.
Integrated functions Description of the integrated functions: Programmable float/boost charge change over If the battery voltage lowers due to mains failure or any other circumstances the rectifier unit will work in current limitation. If it operates for more than 30 seconds after the charge start it will automatically be switched over to the boost charge characteristic. After the boost charge voltage (current limitation) has been reached and after decreasing to < 90 %, a time stage will be activated. Upon expiration of the adjusted time it will automatically be switched back to float charge. The time can be adjusted between 0 and a maximum of 6 hours. If no increased boost charge characteristic is requested it can be blocked on the controller. By an external contact or a fixed bridge at the regulator the float/boost charge change over can be blocked, and a switch over to the boost charge characteristic can be prevented. Equalise charge stage It is possible to switch on an equalise charge stage via a push-button on the regulator card.
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Here the voltage limitation will be abolished and the nominal unit current will be reduced to 20 - 30 % (adjustable). Now an equalise charge follows with an I-characteristic up to the final charge voltage of the battery. By switching on the equalise charge, a timer will be activated, which automatically switches back to float charge on expiration of the adjusted time (16 hours or 72 hours). By use of an external contact or a fixed bridge at the regulator, the equalise charge can be blocked and a switch over to the I-characteristic ca n be prevented. The three possible modes of operation are indicated by LED's on the front door of the rectifier unit. Mains monitoring In cases of a phase or mains failure, an electronic regulator block will be activated and the alarm ‘mains fault’ will be indicated. If the mains voltage is returned, the regulator block will be stopped, the rectifier unit will function again and the LED ‘mains present’ will illuminate. Charger output monitoring The charger output monitoring is a current-dependent low voltage monitoring and monitors the IU-characteristic of the rectifier unit. If the charger output voltage falls below a set value of, e. g. 2.1 V/cell and the output current falls below 90 % of the rated current the alarm will activate and the LED ‘unit fault’ will illuminate. Furthermore it is possible to include external monitoring such as ripple monitoring or fuse monitoring into the unit's fault alarm. High voltage monitoring If the output voltage rises too high (value is adjustable) by an internal or external interference, over 20 msec, the impulse blocking will be activated and the output voltage will be set to zero. The high voltage monitoring works as dynamic monitoring with an automatic reset. If the monitoring responds 4 times within a period of 30 seconds, the impulse blocking will remain activated and the alarm ‘high voltage’ will appear. Low battery voltage If the battery voltage falls below a set value of , e. g. 1.8 V/cell (value adjustable) during discharge in a case of a mains failure, the alarm ‘low battery voltage’ will appear. Earth fault monitoring The earth fault monitoring function monitor the isolation resistance of the DC-side. Plus and minus are monitored alternately. In case of failure it will be indicated by the LEDs and the common alarm. Battery circuit test The battery circuit of the power supply system is tested cyclically.
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