Kemppi FitWeld 300, Руководство по обслуживанию

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8
Secondary rectifier Z002
Measurement points
Diode branch A
Diode branch B
Common point
Resistor A
Resistor B
Secondary diodes:
1. Measure diode branches one at the time
from transformer (red test probe) to
common point (black test probe)
Values: 0,3 – 0,5 VDC
2. Measure diode branches one at the time
from common point (red test probe) to
transformer (black test probe)
Value: No value
Damping circuit resistors:
Resistor value must be 5Ω
Main components
- Middle point connected full wave rectifier
- Damping circuit reduces voltage stress of diodes
- Overvoltage varistors protect diodes from ignition sparks