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HIGH VOLTAGE POWER ISOLATORS
for Sensitive Equipment
Transformer Type:
 These supply 115V or 230V AC power for long periods of time for electronic equipment that must operate while at a high voltage to ground. For example, a fiber optic transmitter at the HV level for waveforms to be received and measured or recorded by grounded instrumentation might be powered by an isolation transformer. The low dielectric constant air insulation provides lower capacitive coupling between the secondary and the primary or ground than would solid or oil insulation. The lower capacitance provides better isolation both at line frequency and especially at high frequency voltages such as lightning or switching transients.
 Capacitance values as low as 20 Picofarads and withstand voltages of 60KV or more are available. Ratings may be 50VA to 2KVA or more. Isolation ratings between secondary and primary or grounded transformer core of 5KV up to 50KV RMS. 60KV or 110KV 1.2x50 microsecond impulse withstands are available. The most popular models for low power instrumentation are 50 volt amps or 500 volt amps with 115V/230V primary to 115V/230V secondary and withstand isolation of 25KV RMS 1 minute and 60KV impulse. Approximate size: 12" x 14" x 20", approximate weight: 50 lbs.
Motor Generator Type:
By use of a high voltage insulated coupling to isolate a motor at ground potential and a generator at high voltage, very low capacitance and very high voltage withstand isolation can be obtained. A range of continuous AC or DC power output of 12V to 115V, 5 to 100 volt amps or more is available. Light weight and practically unlimited high voltage isolation withstand levels are possible with motor input voltage of 12V to 230V, 50 or 60Hz. |
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Battery Type:
12 volt DC output or other isolated supply can be recharged by removable 115V AC charger and supply 3 to 50 ampere hours or more depending on allowable size and weight. Remote On-Off control by fiber optics is available.
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