New Generation (NG) Chargers and Solar operations

Our new generation chargers are suitable for operation with solar power systems.
For these units the Model designation will have a G Suffix to identify it. e.g. NG12/60G
As the standard materials handling unit will not operate satisfactorily on a generator of indifferent quality it is necessary for us to modify the module before delivery. When ordering ensure that we are made aware that it is for a generator operation.
The modification is the simple addition of capacitance across the high voltage DC so that there is no interference from the generator waveform
The chargers have been in operation in solar applications since 1998 with excellent reliability, but their complexity means that they must be returned to our factory for repair if that ever becomes necessary.
Another model has been developed from our NG range and this is a constant power operation where the output will be a constant Kilowatt value up until a preset point (2.4 V/cell) when it will revert to a constant voltage operation. The constant power operation means that the tapering of the output is not as steep as the standard charger.
These are designated CVxx/xxxG (Constant voltage) or CVxx/xxxGB (constant voltage with boost) models. In most instances these will be suitable for Solar operation. The CV and boost settings can be adjusted in the field but standard factory setting are CV 2.4 volts per cell and boost 2.5 volts per cell.

CV Chargers

Constant Voltage Standard (CVS) Battery Chargers.
SEEL New Generation Constant Voltage Standard (CVS) Battery Chargers return constant power back into the battery until the battery voltage reaches the Constant Voltage (CV) Level. Thereafter, the charger current falls depending on the characteristics of the battery. If the battery is loaded and the voltage falls below the CV level, the charger reverts back to the CW mode and the whole process repeats. In this way, full use is made of the battery charger capacity during the Constant Power stage.
The LCD on the front panel continuously displays battery charger output voltage and current.
There is no timed shutdown. But the battery charger may be turned ON or OFF via the on/off switch on the front panel.
There is no timed voltage boost feature.
Battery temperature compensation of the constant voltage is not included, but it may be added as an optional extra. We strongly recommend this option if there is likelihood of the battery heating.

CVB Chargers

Constant Voltage Boost (CVB) Battery Chargers
SEEL New Generation Constant Voltage Boost (CVB) Battery Chargers return constant power (CW) back into the battery until the battery voltage reaches the Constant Voltage (CV) Level. Thereafter, the charger current falls depending on the state of charge of the battery. If the battery is loaded and the voltage falls below the CV level, the charger reverts back to the CW mode and the whole process repeats. In this way, full use is made of the battery charger capacity during the Constant Power stage. During the Boost mode, the maximum charger output current is limited to 30� 40% of the rated battery charger current.
The LCD on the front panel continuously displays the battery charger output voltage and current.
There is no timed shutdown. But the battery charger may be turned ON or OFF via the on/off switch on the front panel.
A preset (60 120mins) timed voltage boost is achieved by pressing and holding the boost button for 5 seconds. To extend the boost time, wait for a minimum of 5 seconds and then press the boost button for another 5 seconds. This increases the boost time by 15 minutes. This process can be repeated four times to give a maximum boost time of Preset + 60mins. The charger reverts back to its normal constant power/constant voltage operation after the boost charge.
Boost will only operate after 2 hours of constant voltage.
CV Solar chargers update.
The Boost operation has been modified on all CV charger supplied after July 20 2006. This change reflects input from the Solar Industry. The boost operation can now be set in operation immediately after the transition to CV mode, this increases the charger output to 90% of rated output and will allow an equalise charge to be carried out in a shorter time frame and assist in the recovery of badly discharged batteries.
Battery temperature compensation of the constant voltage may be included.

New Generation (NG) Chargers and Solar operations

Our new generation chargers are suitable for operation with solar power systems.For these units the Model designation will have a G Suffix to identify it. e.g. NG12/60G

As the standard materials handling unit will not operate satisfactorily on a generator of indifferent quality it is necessary for us to modify the module before delivery. When ordering ensure that we are made aware that it is for a generator operation.

The modification is the simple addition of capacitance across the high voltage DC so that there is no interference from the generator waveform

The chargers have been in operation in solar applications since 1998 with excellent reliability, but their complexity means that they must be returned to our factory for repair if that ever becomes necessary.

Our new generation chargers are suitable for operation with solar power systems.
For these units the Model designation will have a G Suffix to identify it. e.g. NG12/60G