Our Blog&News
PV Isolator Switch for Solar DC Circuit Isolation
Lvma-ele on 26-11-09
Solar DC is tricky. Sunlight hits panels, voltage comes up right away. AC has a natural zero crossing that puts arcs out. DC does not. This single fact makes safe [...]
1500V or 2000V? Which DC Platform Should Your Next PV Project Specify
Lvma-ele on 26-11-08
Quick answer: Stay on 1500V for anything under roughly 100 MW, for any project in a market whose grid code does not yet recognise 2000V DC, and for any plant [...]
PV Combiner Box: Essential Solar PV System Guide
Lvma-ele on 26-11-03
1. What Is a PV Combiner Box and Its Core Functions The solar system relies on multiple key components to collect and deliver DC power from panels. The PV Combiner [...]
Electronic vs Electromagnetic RCCB: What Is the Real Difference?
Lvma-ele on 26-10-30
Both devices protect people against electric shock and equipment against earth leakage — but they trip in fundamentally different ways. Choosing the wrong release technology on site can leave a [...]
DC Molded Case Circuit Breaker (DC MCCB) Applications in Photovoltaic PV Systems: Safety, Protection & Selection Guide
Lvma-ele on 26-10-29
Solar photovoltaic systems operate on direct current before power flows into inverters. Unlike AC circuits, DC current has no natural zero crossing, which makes DC arc extinction far more difficult. [...]
DC Combiner Box: Essential Protection for Solar PV Arrays
Lvma-ele on 26-10-28
Solar PV systems produce direct current via solar panels. When numerous PV strings operate together, safely gathering and controlling DC power becomes vital. The DC Combiner Box acts as the [...]
Meet LVMA at 3E XPO 2026 | 51st Philippine Power, Energy & Lighting Exhibition, Booth 206
Lvma-ele on 26-10-26
The Philippines’ most anticipated electrical and renewable energy trade event, 3E XPO 2026 — the 51st Philippine Power, Energy & Lighting Exhibition, is set to open its doors this November, [...]
LVMA Electric Concludes Strong Debut at Egypt Energy 2026
Lvma-ele on 26-10-20
ATS, Molded Case Circuit Breakers and Voltage Protection Solutions Draw Steady Traffic at Booth H4.G61 LVMA Electric wrapped up its participation at Egypt Energy 2026, held from October 12 to [...]
LVMA Successfully Concludes the 140th Canton Fair | Solar DC Combiner Box & Low Voltage Electrical Showcase
Lvma-ele on 26-10-20
The 140th Canton Fair has come to a successful end, and LVMA is thrilled to share our rewarding exhibition journey with worldwide partners, solar EPC contractors, importers and system integrators. [...]
LVMA Electrical Showcases ATS, MCCB & Voltage Protection Devices at Egypt China-Africa Green & Innovation Exhibition
Lvma-ele on 26-10-20
The China-Africa Green & Innovation Cooperation Exhibition in Egypt has successfully concluded, and LVMA Electrical has returned with valuable market insights and positive feedback from local electrical contractors, solar integrators [...]
2P Over Under Voltage Protector: Simultaneously Disconnect Live & Neutral for Full Circuit Isolation
Lvma-ele on 26-10-17
Intro Most standard over under voltage protectors on the market use 1P+N design. They only trip the live line while the neutral wire remains connected to the grid. In floating [...]
Voltage Protector Setup | Full P01‑P19 Parameter Guide
Lvma-ele on 26-10-15
Have you ever come home to find a broken refrigerator, burnt air‑conditioner compressor or dead television — while your standard circuit breaker remains untouched? Unstable mains voltage is often the [...]