Notícias

Guia do testador MPPT solar: Teste de painéis fotovoltaicos de 2000 W
As photovoltaic (PV) modules become more powerful and solar installations grow in complexity, accurate on-site performance testing is increasingly important for installers, EPC contractors, and operation and maintenance (O&M) teams.

Resolução de problemas relacionados com tensões fantasmas e interferências de variadores de frequência (VFD): Como os modos LoZ e LPF lhe poupam tempo
A digital multimeter can show voltage on a disconnected conductor, even when that wire is not connected to an energized source. And when you measure a variable frequency drive (VFD),

O equipamento desliga-se ao arrancar? Como medir com precisão a corrente de arranque
A motor starts, the lights flicker, and the circuit breaker trips—even though the equipment’s running current looks normal. For HVAC technicians and industrial maintenance teams, this can be a frustrating

Como escolher o medidor MPPT adequado para testar os painéis solares do seu sistema fotovoltaico
Choosing a solar panel tester starts with three electrical limits: power, voltage and current. All three must suit the module or circuit you intend to test. A higher wattage figure

Resolução de problemas em painéis solares com um medidor MPPT: 7 problemas comuns em sistemas fotovoltaicos e respetivas soluções
A solar panel producing less power than expected is not necessarily faulty. Changing sunlight, high cell temperature, shading and dirty surfaces can all reduce output. Loose connections or internal module

Medidor MPPT para teste de painéis solares: Como testar a potência de saída real de um painel solar
A solar panel can show a normal voltage reading and still deliver less power than expected. For anyone checking a new module, comparing existing panels or investigating low output, voltage

How to Measure Leakage Current by Clamping Live and Neutral
How to Measure Leakage Current With a Clamp Meter by Clamping Live + Neutral Clamping live (L) and neutral (N) together is one of the fastest field methods to check

AC vs DC Leakage Current Measurement: Key Differences & Tips
AC vs DC Leakage Current Measurement: Differences and Safety Notes Leakage current testing is one of the most practical ways to spot insulation problems, moisture ingress, wiring faults, and aging

How to Select Clamp Meter Range for Leakage Current Testing
Measuring leakage current with a clamp meter is one of the fastest ways to confirm whether a circuit is “clean” or quietly bleeding current to ground. The catch is that

How to Choose a Clamp Meter for Electricians
A clamp meter looks simple: open the jaws, clamp a conductor, read the current. In the field, though, the “right” clamp meter is the one that matches your real workloads—distribution

How to Choose the Right Jaw Opening for Your Digital Clamp Meter
Selecting the optimal clamp meter isn’t just about current range or True RMS capability—it starts with one often-overlooked but critical spec: jaw opening size. And in modern electrical environments, the

Key Specifications for Choosing an Industrial High-Current Clamp Meter
Industrial electricians and maintenance engineers choose a high-current clamp meter for one reason: fast, safe, non-intrusive current measurement in real panels—without breaking circuits. But “high-current” measurement is where mistakes become
