Product Overview
1) Product overview
Product Features
- Rata’s wholesale resistive load bank line includes containerized outdoor low- and medium-voltage units (example: R2500kW marine load bank).
Product Value
- Voltage conversion is handled by dry-type transformers (up to 10 kV rise) and star–delta conversion (400 V ↔ 690 V).
Product Advantages
- Units support resistive and inductive loading, continuous operation, forced-air cooling, modular parallel expansion and customizable configurations to customer specifications.
Application Scenarios
2) Product features
- Load types: resistive and inductive with minimum steps typically 1 kW / 1 kvar and customer-defined step sizes.
- Accuracy and instrumentation: loading accuracy ±3%; instrument sampling accuracy (V ±0.5%, I ±0.5%, Hz ±0.1%, P ±1%, Cosφ ±1%).
- Protections: short-circuit, over-voltage, over-current, over-temperature, low air volume and emergency-stop.
- Build and materials: special-alloy resistors (resistance ±3%, cold/hot change ≤2%), aluminum or copper reactors for inductive loads (inductance ±3%).
- Mechanical/environmental: outdoor container type, IP56 when idle (IP20 in operation), forced-air side or top discharge, ambient −20°C to 50°C, altitude ≤2500 m.
- Flexible connection and expansion: star–delta switching for 400–690 V range, transformer rise for medium-voltage needs, parallel expansion of multiple containers.
3) Product value
- Reliable, long-life load testing for generators, switchgear, UPS and power systems that reduces commissioning and maintenance risk.
- Scalable and customizable solutions lower capital inefficiency by matching load capacity to project needs and enabling phased expansion.
- High measurement accuracy and built-in protections improve test safety and produce trustworthy test data for validation and certification.
- Meets industry, ship and military standards, supporting compliance and faster project acceptance.
4) Product advantages
- High stability and durability: proven design for continuous heavy-duty operation (marine and industrial use).
- Broad voltage coverage: star–delta and transformer designs let one product serve low- and medium-voltage test requirements (400 V–10 kV capability).
- Precision control and monitoring: accurate instrument sampling and tight load accuracy deliver repeatable, verifiable tests.
- Strong safety and cooling systems: multiple protective functions and forced-air heat dissipation for reliable operation.
- Modular and transportable: containerized format with lifting points, parallel expansion and many pre-defined size/capacity options.
- Backed by Rata credentials: patents, software copyrights and recognition as a national high‑tech enterprise.
5) Application scenarios
- Marine and shipboard generator testing and commissioning.
- Large generator sets, power-plant or factory power-supply acceptance and maintenance.
- UPS, switchgear and transformer load testing and commissioning.
- Telecom and data-center backup power verification.
- Military, utility and large industrial sites requiring on-site, portable, high-capacity load testing and routine maintenance validation.