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Powerguard HD


 		  
 

POWERGUARD™ HD

The Power To Choose

The POWERGUARD™ HD charger series is HAWKER's new ferroresonant charger line.

The POWERGUARD™ HD charger series consists of single-phase and three-phase chargers for every charging need. POWERGUARD™ HD features stackable drip-resistant cabinets and are designed to be convection cooled in ambients up to 40°C (104°F).

Hawker offers two different models in the POWERGUARD™ ferroresonant line, the POWERGUARD™ HD (for heavy duty applications) and the POWERGUARD™ LD (for light duty applications). Let's take a closer look at the two models.

POWERGUARD™ HD
POWERGUARD™ HD is designed to return a 100% discharged battery to full charge in eight hours or less; everything from a 6, 12, or 18 cell battery all the way up to a 24 or even a 40 cell battery. With an 18% start rate and 4 to 5% finish rate, the POWERGUARD™ HD chargers are built to return 108% to 112% of your battery's rated capacity in an eight-hour period.

The POWERGUARD™ HD charger is available with two different controls, the PRO and the PREMIUM. You can select the control that best meets your charging needs.

The PRO Control offers:

• Auto Start/Stop - Auto start/stop enables the charger to start/stop the charge cycle automatically.
• Dv/dt Termination - Precise termination that tracks rates of change of battery voltage (dv/dt), or you can select time-voltage (t/v) termination.
• Manual Equalize - Provides user control to start or stop an equalize charger.

• Easy to read LED Indicators
•Charging
•80% Indicator
•Charge Complete
•Equalize
•Power ON
    

 

POWERGUARD™ HD & LD Control Your Battery Fleet

POWERGUARD' HD & LD guards your battery fleet against being over or under charged. See the POWERGUARD™ difference ...

• In the case of an AC power failure, the charger resumes charging exactly where it stopped charging

• Backup timer and second, separate timer initiate a 15-hour
countdown when the charge cycle begins. Should the primary timer fall. the backup timer shuts off the charger 15 hours after it starts.

• Solid-state electronics perform self-diagnostics on the charger and shut it down in case of charger-related problems.
 
The PREMIUM Control offers:
• All the features of the PRO Control
PLUS-
• Programmable equalize - Allows you to program the duration and frequency of equalize.
• Programmable delayed start - Delay period can be adjusted from 0 to 25 hours, in 6 minute increments.
• Programmable cool down - Allows you to program the cool down tune between 0-12 hours.
• Auto refresh - A refresh charge is performed every 12 hours for 20 minutes.
• Programmable refresh charge time limit - Allows you to program both the duration of charge (from 0-60 minutes) and the charge interval (from 2-24 hours)
• Programmable post 80% limit - May be programmed to run from 0-10 hours after reaching 80%.
• LED numeric display - Four digit/seven segment numeric display shows the volts per cell. AH returned, delay time. total charge time and fault condition by fault mode.
• Faults - The charger control circuitry constantly monitors for eleven different fault conditions.
• Random restart on power failure - After a power outage, upon power restore, the charger(s) will have a random short delay before restarting. to prevent a power surge.

POWERGUARD™ HD allows you to control your fleet operation while at the same time control your operating costs.

POWERGUARD™ LD
POWERGUARD™ LD chargers are rated to return an 80% discharged battery to full charge in eight hours and should not be used in applications where overdis-charging may occur. POWERGUARD™ LD is designed for light duty applications and is available in both single and three-phase.

The POWERGUARD™ LD charger is only available with the standard (PRO) control board.

POWERGUARD™ LD features:
• Choice of dv/dt or time-voltage termination
• Auto Start/Stop
• Manual Equalize
• Easy to read LED Indicators
 
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