CORONA
TREATER FOR PLASTIC / PAPER FILMS.
The Corona Treater is designed for
stringent requirement, and environmental
conditions of plastic industry. The use of
Microcontroller at the heart of circuit gives
instantaneous fault protection, and also controls
all major functions like on / off, protection,
safety, power control etc. and operator attention
is least required. The micro-controller also
monitors the speed of the silicon roller, and
switches on the corona when silicon roller starts
rotating, and switches off the corona in case
roller stops rotating. This avoids the excess
treatment to film, which could result in loss of
strength and permanent damage to silicon coating
of roller. The use of IGBT / MOSFET in power
inverter stage gives fault tolerant power circuit
which can sustain short circuit on HT side also.
The operating frequency of 20 kHz and voltage of
15 kV gives uniform and powerful corona at
electrode.
This high frequency supply is fed to a ferrite
core transformer for stepping up. The secondary
of the transformer is connected to aluminum
electrode. The corona is obtained between these
electrode and the silicon coated roller.
The operation is very simple and requires no
operator attention. Once switched on, the corona
automatically starts when silicon roller starts
rotating. The corona is again automatically
switched off when the roller stops rotating. The
status lamp gives various indications for
diagnostic purpose.
Features
- Compact in size.
- Rugged Construction.
- Fully automatic operation
- Housed in powder coated box.
- High Power output.
- Maintenance free operation.
|
|
Technical Specifications.
| Input Supply |
230 volts 1 phase with
neutral. |
| Operating Voltage |
10 kV to 15 kV |
| Operating Frequency |
16 kHz To 22 kHz |
| Power Stage |
IGBT / MOSFET. |
| Display |
Lamp for Status. |
| Panel Control |
Power on/off |
| Power Control |
Rotary Switch |
| Protection |
Over current , over temperature |
|
