PLB-D/S Load Bank: Single/Three-Phase Compatible, Higher Efficiency with Intelligent Program Control
Date:
05 May,2026
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In the full workflow of factory quality inspection, on-site acceptance and routine maintenance for generator sets, UPS power supplies, inverters, energy storage power supplies and complete electrical equipment, high-performance AC load banks are essential core equipment for controlling the load stability of power equipment and verifying actual output power.
Traditional split-type single/three-phase load equipment suffers from poor compatibility, complicated wiring, large errors in manual adjustment, and occupies a large amount of warehouse space, which greatly reduces overall testing efficiency. As a professional original manufacturer of load banks, Ningbo Zhimao Electronic Technology has been deeply engaged in the R&D and manufacturing of power testing equipment for many years. With targeted technical upgrading, we proudly launch the PLB-D/S Programmable AC Single/Three-Phase Load Bank Series. One unit meets full-scenario testing demands. Featuring strong compatibility and intelligent program control, it comprehensively boosts quality inspection efficiency for all power application scenarios.
The core advantages of the PLB-D/S programmable AC load bank directly solve industry pain points. It realizes seamless switching between single-phase and three-phase modes for the first time, with no need to replace hardware modules or rework wiring. The equipment is flexibly applicable to standard industrial frequency conditions of single-phase 220V and three-phase 380V, covering full-range testing requirements from low to high power. It completely eliminates redundant costs caused by separate procurement, maintenance and storage of independent single-phase and three-phase load banks.
It fully covers all application scenarios, including batch assembly line aging and durability testing in workshops, on-site load verification of generator sets at outdoor construction sites, and precise working condition simulation and calibration in laboratories. It greatly cuts enterprises’ dual costs on equipment procurement and warehouse occupation.
Intelligent program control is the key to efficiency and quality improvement of this load bank series. Equipped with an integrated high-definition touch control panel and self-optimized program control system, it allows visual and accurate setting of multiple test modes such as stepped power, constant power and pulse intermittent operation. It supports automatic power compensation and tracking, collects real-time full-dimensional operating data including voltage, current, power and harmonics, and automatically saves complete test records. Manual on-duty and manual data recording are largely unnecessary.
Compared with traditional manually adjusted load banks, manual intervention is reduced by over 80%, and test data error is strictly controlled within ultra-low industry standards. Quality inspection reports support one-click traceability and filing, fully meeting the strict requirements of factory standardized quality inspection and third-party power compliance acceptance.
Adopting industrial-grade robust construction, it adapts to all-weather complex and harsh working environments. The integrated chassis is made of thickened high-strength cold-rolled steel plate, with excellent dustproof, shockproof, high and low temperature resistant performance, suitable for heavy-duty continuous workshop operation and outdoor open-air temporary testing.
Built-in intelligent constant-temperature heat dissipation and air cooling system works in linkage with multiple real-time protection functions including overload, over-temperature, short circuit and phase loss. It automatically cuts off power and shuts down within seconds once an abnormality occurs, avoiding equipment burnout, circuit tripping and on-site safety hazards. The unit remains stable without overheating even under long-term full-load continuous operation, with a service life far longer than ordinary conventional load equipment.
As an original manufacturer, Zhimao Technology implements integrated production and assembly. Core components adopt original parts from top-tier suppliers, with full-item power-on aging sampling inspection before delivery. The quality is fully reliable for long-term and high-frequency operation conditions.
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