Universal Electronics Universal Electronics

. Universal Electronics (ISO CERTIFIED) P.O.Karalam, Near Irinjalakuda, Thrissur Dist, Kerala - 680711, India
. Call Us Now: 0480-2887403, 9446587403 / 8547088044,
. email: unelko@gmail.com

SPECIFICATION FOR 3 KVA to 15KVA STATIC UPS

No load shut down and load restart – in a 10KVA inverter if there is no load, the inverter will automatically shut down. During this shut down, the inverter will consume only 15mA. When there is a load of even 15VA connected to the output, the DSP will detect the load and restart the system.

This is especially useful in solar applications as the energy consumption in shut down mode is extremely low. Hence this feature is very suitable for energy saving applications.

It has priority solar charging, i.e. if a solar panel is connected, while charging from the solar panel the mains charger will be standby. After charging from the solar panel, if the battery is not fully charged, only then mains charger will be activated. So we can save the electricity.

Minimum wattage detection for no load shutdown – 15W

During solar charging, when battery voltage reaches full charge (this value is settable), the inverter will be switched on and mains will disconnect from the load, till the battery voltage reaches reserve battery voltage (this value is settable).

Below the reserve battery voltage, inverter will switch off and mains charger will be switched on and mains bypass to the load will take place. This cycle will repeat automatically.

During this cycle, any permanent cut-off of the inverter due to short circuit or overload, it will come out of this mode to its original mode, that time if mains is present it will bypass the mains.

IGBT based static change over– the change over is happening using IGBT and not using relay. This means there is absolutely no change over delay and hence there is no chance for reboot.

A four line LCD will be of scrolling type, showing ‘your company name’ and  the status of the inverter such as batt voltage, mains voltage, and inverter output voltage, inverter standby on/off, charger on/off, mains / solar charging and many more.

It is very simple to handle and very easy to set the values in the menu driven set-up mode.

In the menu driven set-up, we can see all the parameters in LCD like battery low – 21V, inverter voltage – 220V etc. By using the Up & Down keys, we can change the values. For ex: Battery low – 21V, by using the ‘Up’ key, you can increase the value to 21.2,  21.3 ….22, 23… By using the ‘down’ key you can decrease the value to 20.8, 20.7…..20, 19…If you want to set battery low at 21.4V, press the ‘enter’ key at 21.4 then this value will be fed to the memory and battery low will be set for 21.4V.

There is no need of any preset. In the conventional method of using a preset, we cannot view the set voltage, after setting the preset, we have to evaluate by varying the battery voltage and check if the battery low warning and cut is coming at the set voltage. Moreover, due to the mechanical vibrations and ageing, there are chances for the preset to shift the set position.

SPECIFICATION FOR 3 KVA to 15KVA  STATIC UPS

POWER RATING : 3000 VA – 15000 VA
CONTROL DEVICE : DIGITAL SIGNAL PROCESSING
POWER DEVICES : IGBT / MOSFETS
INPUT BATTERY VOLTAGE : 48 – 360 V DC
OUTPUT VOLTAGE : 220 V +/-1% AC SETTABLE
OUTPUT FREQUENCY : 50 Hz +/-1%
OUTPUT WAVE SHAPE : SINOSOIDAL
OUTPUT T.H.D : < 2 % with resistive load
MAINS CHARGING : PWM
MAINS CHARGING CURRENT : SETTABLE 15A MAX
MAINS CHARGING VOLTAGE : 140 – 270 V AC
MAINS TO INVERTER & INVERTER TO MAINS CHANGE – OVER : RELAY
SOLAR CHARGING PRIORITY : YES
BATTERY LOW LEVEL : SETTABLE
BATTERY FULL CHARGE CUT OFF LEVEL : SETTABLE
OVERLOAD PROTECTION : FOLDBACK CURRENT LIMITING
SHORT CIRCUIT PROTECTION : TRIP AFTER 3 SEC
SHORT. CIRCUIT RESTART : AUTO AFTER 15 SECS (5 TIMES)
OVER LOAD : 112 % FOR 10 SECS.
OVER LOAD RESTART : AUTOMATIC ( 5 TIMES )
DISPLAY : LCD 1, 2 or 4 lines settable
ALARMS FOR FAULTY CONDITIONS : SHORT CIRCUIT, OVERLOAD, BATTERY LOW
SETUP : THROUGH MENU-DRIVEN SETUP

NO LOAD SHUT DOWN (if the load is less than 15W) AND LOAD RESTART (when load equal or above 15W is connected) ARE INCORPORATED FOR SAVING SOLAR ENERGY

PARAMETERS like BATTERY LOW, BATTERY FULL CHARGE, CHARGING CURRENT, INVERTER VOLTAGE, INVERTER FULL LOAD ETC CAN BE SET USING MENU-DRIVEN SET-UP.

WHEN THE SYSTEM IS IN BYPASS MODE PARAMETERS DISPLAYED

> BATTERY VOLTAGE

> INVERTER STANDBY ON/OFF

> MAINS VOLTAGE

> CHARGER ON/OFF

WHEN THE SYSTEM IS IN INVERTER MODE PARAMETERS DISPLAYED

> BATTERY VOLTAGE

> INVERTER OUTPUT VOLTAGE

> LOAD

> SOLAR CHARGING /MAINS CHARGING

> INVERTER MODE

> OVERLOAD

> SHORT CIRCUIT

> OVERLOAD TRIP

> SHORT CIRCUIT TRIP

> BATTERY LOW VOLTAGE TRIP

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