LV grid-tie cabinet for 400 V distributed PV: anti-islanding protection, auto reclosing on voltage recovery, sealed metering bay and smart telecom — built on MNS/GCS/GCK/GGD frames to suit the site.
Designed for distributed PV projects on AC 400 V LV systems, the cabinet integrates an anti-islanding protection device (fault-decoupling and power-quality monitoring optional), isolating switch, grid-tie breaker, surge arrester, temperature-humidity controller and energy metering. Cabinet frame and dimensions are customised on site as MNS, GCS, GCK or GGD.
Protection: passive islanding detection, live-line auto closing, over/under-voltage, over/under-frequency and reverse-power protection
Auto grid connection: trips on grid voltage loss and auto-recloses when voltage recovers; smart telecom links to the back-end for remote breaker control and live readouts of parameters and switch positions
Energy metering: optional lead-sealed metering bay against power theft, housing utility metering and load-control devices to record generation accurately
PV-side abnormality (voltage, frequency, overload) → anti-islanding device trips the grid-tie breaker instantly; recloses automatically once the grid recovers
Grid-side abnormality → rapid detection and tripping to disconnect and prevent islanding
PV-side maintenance with healthy grid → blocks reverse feed from grid to PV, safeguarding maintenance personnel
Specifications are representative and may vary by configuration and region. Final figures are confirmed on the project datasheet.
Tell us about your load profile and site conditions — our engineers will help you size the right HiStore configuration.
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