zero voltage

[/ˈzɪroʊ ˈvoʊltɪdʒ/]
nounpl: zero voltages
tensão zero
1. The state or condition where electrical potential difference is absent or equals zero volts; no electrical voltage present in a circuit or system
The circuit breaker automatically activates at zero voltage to prevent electrical hazards.
O disjuntor ativa automaticamente em tensão zero para prevenir riscos elétricos.
2. In electrical engineering, the point where voltage measurement reads 0V across a conductor or component
Before performing maintenance, the technician verified zero voltage across the power lines.
Antes da manutenção, o técnico verificou tensão zero nas linhas de energia.
3. A safety condition in electrical systems where no electrical potential is present
Zero voltage switching is a technique used to reduce electromagnetic interference.
A comutação em tensão zero é uma técnica usada para reduzir interferência eletromagnética.
This is a technical term widely used in electrical engineering, safety protocols, and industrial maintenance across both Brazil and the United States. In Brazil, it's essential terminology in construction, electrical work, and occupational safety training. The concept is critical in both cultures for workplace safety regulations and OSHA/equivalent compliance.
Synonyms / Sinônimos
null voltagezero potentialno voltageabsence of voltage
Antonyms / Antônimos
full voltagerated voltagemaximum voltagenominal voltage

Regional Variations

General Brazilian
tensão zero
Standard term used in electrical engineering and safety contexts
São Paulo
sem tensão
Alternative colloquial expression meaning 'without voltage'
Portugal
tensão nula
Portuguese variant using 'nula' instead of 'zero'

Related Words

voltageelectrical potentialcircuit breakerpoweramperageohmselectrical safetycontinuity test

Related Idioms & Phrases

dead circuit
power down
kill the power
de-energize
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