Specification Of BECafzar Co. inverter

Mechanical  characteristics :

Metal Sheet cabinet , IP 42 Paint: RAL7032 light grey (electro-static powder coated painting)  Lifting eye Identification plate outside of Cabinet  Cable entry : bottom , with gland plate  Standard  tags for all of wires  Standard label for all of  components

Electrical characteristics :

• Nominal input  voltage:

• 220VDC  +15%,-15%

• Inverter  output :

• Nominal voltage( Un): 220V:

• Nominal capacity :  10KVA , 15KVA , 20KVA, 25KVA,30KVA

• Nominal frequency:   50Hz

• Voltage regulation:

• Static: 2%

• Dynamic :

• -load variation with 10% steps : output variation 2%

• -load variation with 50%(50 to 100%) steps : output variation 5%

• output voltage will be stable within 100msec.

• Long term stability of Un

• Efficiency:  > 85%

• Output  power  factor :  0.80

Frequency Variation:

• 50 Hz +,- 1%

THD :

• With linear load < 3%

• With non linear load (Crest factor up to 3) : < 5%

• Single H.D : < 3%

Over load:

• 125% for 30 Sec

• In case of over load , load will transfer to bypass line automatically .

Protections

• Polarity reversal of  input DC voltage  

• DC soft rise in the input of Inverter

• Short circuit ( fast fuse protistor) and electronic cut out

• Over load  protection on inverter line and bypass line

• Fast fuses for power modules protection  DC input

• MCCB (mounded case  circuit breaker) for DC IN/bypass IN/manual bypass IN/output

• Low DC input  (  disconnect input section from DC source and transfer output to bypass line)

• DC input high  (  disconnect input section from DC source and transfer output to bypass line) 

• Low /high inverter output voltage

• Inverter output frequency  out of  range.

• Low /high bypass line voltage 

• Bypass line  frequency  out of  range.

• Over temperature alarm

• Inverter over temperature shutdown ( load will transfer to bypass line) 

Environmental

Ambient temperature:

• Operating: 0 to +45 C

• Storage : -25 to 80 C

• Relative humidity:

• Operation : from 20% to 80% no condensation.

• Storage: from 15% to 90% (in original packaging) 

• Acoustic noise:

• Typical less then 55 db

• Altitude:

• Up to 2000m

 Measurements :

• Output Voltage (AC voltmeter 0-500V class 1.5)

• Output Current (AC Amper meter class 1.5)

• Input Voltage (linear DC Volt meter 0-300V class 1.5)

• Input Current (linear DC Amprer meter class 1.5)

• Output frequency

System status indicators and Alarms:

• LEDs  located on PCBs

• LED  for  inverter output High voltage.

• LED  for inverter output Low voltage.

• LED for inverter freq. fail

• LED for inverter not sync.

• LED  for  inverter  Over load .

• LED  for  DC input  low  voltage.

• LED  for  DC  input High  voltage.

• LED  for  over temperature.

• LED for bypass line low

• LED for bypass line high

• LED for bypass frequency fail

• LED for bypass line overload

•  LEDs located on mimic panel

• LED for DC OK

• LED for INV OK

• LED for bypass OK

• LED for SSI ON

• LED for SSB ON

• LED for manual bypass switch ON

• LED for output switch ON

• LED for general fault

 Switches located on front panel:

• Reset switch for buzzer

• Lamp test

Remote alarms

• Inverter fail

• Bypass fail  

• DC fail   

• (separate dry type contact for each of them)

 Audible alarm with constable circuit and alarm silence push button

Static switch system

•  Transfer time : less than 4 mSec

•  Manual / automatic change over between inverter  and bypass

Manual bypass switch for maintenance purpose