220VDC SINUSOIDAL INVERTER

The main components that composed the inverter ELIT INV 220 are:

• Input filter
• IGBT conversion unit (Inverter)
• Output filter
• Output insulation transformer
• Static switch as option
• Manual by-pass as option
• Insulation transformer for emergency line as option
• Parallel kit feature as option

INVERTER ELIT INV 220 COMPOSITION

1. IGBT Greatz bridge type with PWM regulation
2. Output current limitation
3. Output voltage detector min – max
4. Heat sink temperature detector
5. DC link voltage detector min – max
6. Short circuit running

STATIC BYPASS SWITCH (AS OPTION)
It transfers the load from the inverter to the emergency line in the event of an inverter overload or failure.
The bypass is available in three configurations with different transfer times:

• Contactor solution, with a transfer time of about 100msec.
• Static contactor solution, with a transfer time of about 50msec.
• Static switch solution, with tranfer time zero.

In this last configuration, the transfer takes place automatically and without interruption.
Characteristics

1. Min – max mains voltage monitor
2. Quartz mains frequency monitor
3. Mains – inverter transfer manual or automatic and vice versa
4. Transfer inhibition mains – inverter after 5-6 attempts
5. Heat sink temperature detector

If the limits are exceeded, the load is transferred to the emergency line and the inverter is switched off. When the normal conditions are restored, the Inverter will be re-inserted.