S a l i e n t   F e a t u r e s
Dc Output Voltage stabilization of float charger within +- 1% of set value irrespective of AC input variations and simultaneous DC load variation from 0 to 100 %
Voltage drooping for float charger to transfer momentary overloads on Battery
Auto & Manual mode operations to make charger remain in operation
In built protection for dead short circuit to charger on DC load to bus.
Soft start features to minimize in rush current during restoration of AC power
Low ripple content upto 1 % or 2 mV psophometric
Surge suppressor to take care AC voltage components
Easy accessibility of components
O p t i o n
  Auto change over facility from float to Boost and vice versa to recharge Battery Set.

T e c h n i c a l   S p e c i f i c a t i o n

SUPPLY VOLTAGE
1 Phase : 230 V
3 Phase : 415 / 440 V
Frequency : 50 Hz.

CHARGER VOLTAGE RANGE
Mode
Lead Acid
SMF/ VRLA
Ni-Cd
Float
2.05 - 2.25
2.25
1.3 - 1.45
Boost
2.03 - 2.75
2.3 - 2.4
1.5 - 1.7
RIPPLE VOLTAGE
1 Phase : < 3 %

3 Phase : < 1%
SWITCHGEAR & PROTECTION
AC Input / DC output side : Load break rotary switches and HRC fuses
DC OUTPUT STABILIZATION
Through Electronic control circuit
METERING
DC Output Ammeter

Battery Ammeter

DC Voltmeter
Optional : AC I/P Ammeter & Voltmeter
ALARMS
Main Fail

Load DC Low volt

DC Earth Fault

Load DC hign volt
Optional
AC OVer Volt
DC Overload
Charger Fail
Fuse Fail
Voltage / Current transducer
AC under voltage
AC Overload
Breaker trip
Voltage-free contacts from Alarm relays available for remote signaling

DC VOLTAGE RANGE
Up to 220 Volts
DC CURRENT
Float : DC Load + Trickle charging current
Boost : Up to 15 % of Battery AH capacity for Lead Acid
Current Stability +/-1% of set value
MAINS ISOLATION
Double wound naturally air-cooled step down transformers to isolate the DC side from the AC mains
RECTIFICATION
Half-controlled rectifier bridge consists of silicon-controlled rectifiers and silicon diodes and with surge supperssion circuit
DC SMOOTHING
Series inductive chokes and shunt condensers to limit ripple content
INSTRUMENTS
Ammeter : To read charge / discharge current of the Battery
Voltmeter : To read DC Voltage
ENCLOSURES
Type : Self standing, Floor mounting
Material : CRCA steel sheet with Angle support
Degree of Protection : IP 42
INDICATIONS
Main ON
DC ON (Optional)