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

HK820 vs HK820+ vs HK880A Digital Anemometer: Key Differences
Choosing the right digital anemometer can make airflow testing faster, easier, and more reliable. The HK820, HK820+, and HK880A are handheld air velocity meters designed for measuring wind speed, air

Class 1 vs Class 2 Sound Level Meters: Buyer Guide
When buying a digital sound level meter, many users see terms such as Class 1, Class 2, IEC 61672, and ANSI Type 2. These specifications can be confusing, especially for

Why 2000V Digital Multimeters Matter for Solar PV, Energy Storage & EV Charging
As electrical systems continue to evolve, technicians and engineers are working with higher voltages than ever before. The rapid growth of solar photovoltaic (PV) installations, battery energy storage systems (BESS),

Key Considerations for Rooftop Distributed PV O&M Measurement Tools
Rooftop distributed photovoltaic (PV) systems are growing rapidly worldwide, but their high-voltage DC environments present unique operational challenges. Choosing the right measurement tools is critical for ensuring safety, efficiency, and

Por que razão os técnicos de AVAC devem optar pelo alicate-amperímetro Honeytek HK588B
In the HVAC (Heating, Ventilation, and Air Conditioning) industry, technicians often juggle multiple tools for electrical diagnostics and temperature monitoring. The Honeytek HK588B clamp meter provides a unique solution by

HK588A vs HK588B: Como escolher entre os alicate-amperímetros LPF ACV e LPF ACA
In modern electrical testing, especially in VFD-driven systems, engineers often face high-frequency voltage and current disturbances. Choosing the right clamp meter for these applications is critical to ensure accurate readings
