Top neon sign transformer wiring diagram - The inductor consists of ninety two turns of #22 strong copper wire wound on a 3 x 3.Five inch ferrite center. The inductance measures 26.7uh. Each layer of winding is cowl with % electric tape to offer a diploma of high voltage insulation.
When utilized in tesla coil number one circuits, neon signal transformers frequently fail due to high-frequency voltage and modern-day stresses. With a view to guard the transformer from those stresses, diverse filter networks may be used to block detrimental alerts from attaining the transformers secondary windings. This paper describes testing that become done the use of a simple rlc filter network. Voltage and cutting-edge waveforms measured across several of the components are offered. This filter out layout exhibited critical troubles whilst examined.
The clear out includes 3 elements. There's a single capacitor this is placed across the output of the transformer. This capacitor is a 940pf, 30kv doorknob style ceramic capacitor. There may be additionally one 1000 ohm 250 watt power resistor and one 26.7mh ferrite inductor placed between the 940pf capacitor and the primary circuitry.
This experiment measures the voltages and modern waveforms evolved across a 15000 volt, 60 ma neon signal transformer as it is driving a tesla coil number one circuit through a lrc clear out network. The community has a 940pf capacitor throughout the transformer’s output. There's a a thousand ohm resistor in one leg and a 26.7uh inductor inside the different leg going to the primary circuit. The output is connected across the number one capacitor when you consider that preceding checking out has proven this to be a worst case connection. There may be no secondary inductor in vicinity for this test. The output voltage of the transformer is limited to approximately 3000vrms to protect the gadget. The voltage waveform throughout the filter out inductor and primary capacitor is likewise measured for reference.
The experimental setup is proven inside the block diagram below. The primary capacitor is a 17.25nf 30kv ceramic capacitor bank. The primary inductor is a 120uh linear coil inductor. The spark gap is a simple zero.02 inch hole that has holes drilled so that air can be pumped into the gap. The transformer is a widespread 15kv 60ma neon sign transformer.