3750 KVA Resistive/Reactive Load Bank
Ratas's 3750 KVA Resistive/Reactive Load Bank is designed for diesel generators, gas generators, and backup power systems to perform factory acceptance testing, on-site commissioning, full-load testing, step-load testing, and annual maintenance tests. They accurately simulate real-world operating conditions with a combination of resistive and inductive loads.
5.0
Warranty time:
3 years
Delivery time:
6 weeks
ISO Certification:
ISO9001/ISO14001
Brand:
RATA
Factory Price:
Negotiate
Supply Ability:
200,000 Piece/Pieces per Month
Port:
Shanghai and Guangzhou are both available
Payment Terms:
L/C,Cash,Western Union,T/T, Paypal
Min.Order Quantity:
1 pcs
ODM & OEM:
Available
Certification:
CE 60204 Standard
design customization
Please fill out the form below to request a quote or to request more information about us. Please be sure to upload customized requirement documents or pictures, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Product Introduction
This load bank is typically configured for a Power Factor (PF) of 0.8 lagging, aligning with the common requirements of most generator sets and prevailing international testing standards. It allows for comprehensive performance evaluation through adjustable resistive and inductive load steps, facilitating tests at various load percentages.
The RATA 3750 kVA Resistive-Inductive Load Bank supports standard generator output voltages of 400V, 415V, 480V, and 690V. It offers customizable configurations based on your generator's specific rated power, current, and applicable testing protocols to guarantee secure and reliable loading during all test phases.
ENCLOSURE DRAWINGS
This diagram details the modular layout of the load bank, highlighting its integrated control room, efficient airflow management with horizontal blowers, and the organized arrangement of resistors, reactors, and main busbars.
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未标题-2 (12)
Main Parameters
| Model No. | B3750L |
| Country of origin | China |
| Apparent power capacity | 3750 kVA |
| Active power capacity(PF 1.0) | 3000 kW |
| Rated testing voltage | 690Vac |
| Load step(Active power) | 100kW*6+200kW*12 |
| Load resolution | 100kW |
| Reactive power capacitance(PFO.8) | 2250 kVAR |
| Load step (Reactive power) | 75kVAR*6+150kVAR*12 |
| Load resolution(Reactive power) | 75kVar |
| Frequency | 50Hz. |
| Phases wires | 3ph 4w |
| Voltage Tolerance (Short Term Operation) | +5% |
| Load Element Tolerance | ≤+2.5% |
| Insulation Test | 800 Vac |
| Load Connections | Copper busbars |
| Protection | Thermal emergency cut out |
| Air flow switch | |
| Fan overload protection | |
| Emergency stop | |
| Control voltage | 3ph 690VAC 50/60HZ. |
| Airflow volume(Approx. CMM) | 2700 CBM/H *10 |
| Airflow direction | Vertical upwards air forced cooling |
| Fans Nos. | 12 pcs. (4kW each) |
| Load switching contactor type | 3 pole AC contactors |
| Rated maximum ambient temp. operation | +60°C / +140°F |
| Rated minimum ambient temp. operation | -20°C / -4°F |
| Altitude rating | ≤2000 [m.a.s.l] or customized |
| Control chamber IP rating | IP 54 outdoor |
| Enclosure material | Containerised carbon steel with marine grade painting. |
| Portability | Standard ISO lifting points |
| Enclosure dimentions | |
| Length(mm) | 7000 |
| Width(mm) | 2438 |
| Height(mm) | 2896 |
| Weight of load bank | 20000 Maximum |
Key details
IMG_1042_副本 拷贝
IMG_3727 拷贝
IMG_8495 拷贝
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IMG_9811 拷贝
内部自制电抗器 拷贝
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IMG_9640 2 拷贝 (2)
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FAQ
1
What applications is the 3750 kVA resistive/reactive load bank designed for?
This load bank is primarily used for factory testing, on-site commissioning, full-load tests, step-load testing, and annual maintenance of diesel generators, gas generators, and backup power systems. It accurately simulates real-world operating conditions with combined resistive and inductive loads.
2
What power factor range can it simulate?
The unit is typically configured for a standard Power Factor (PF) of 0.8 lagging, meeting most generator set and international testing standards. Through configurable resistive and inductive steps, it enables performance testing at various load ratios.
3
How does its capacity and voltage rating match different generators?
The RATA 3750 kVA Resistive-Inductive Load Bank is compatible with common generator output voltages including 400V, 415V, 480V, and 690V. It can be customized to match specific generator rated power, current, and testing standards to ensure safe and stable loading.
4
Does it support step loading and fine adjustment?
Yes. Featuring a modular load design, it supports graded loading for step-by-step increase or decrease in load. This meets the requirements for performance and stability verification at various load points.
5
How do resistive and inductive loads work together?
Resistive and inductive loads are designed as independent modules and controlled in coordination. They can be flexibly combined per test requirements to simulate realistic current phase shift and reactive power, preventing impact on the generator.
6
Is its cooling system suitable for prolonged full-load operation?
The unit uses a forced-air cooling structure with optimized airflow design, supporting long-duration continuous operation. For full-load and extended testing scenarios, it maintains stable temperature rise and ensures component safety.
7
What safety protection features are included during generator testing?
The RATA 3750 kVA load bank is equipped with multiple safety protections: Over-temperature protection; Fan failure protection; Over-current / Over-voltage protection; Emergency stop function; Interlock and alarm mechanisms to quickly disconnect the load in case of abnormality, protecting both the generator and personnel.
8
Is it suitable for outdoor or temporary test sites?
Yes. The load bank can be built with a high ingress protection rating (e.g., IP23 / IP54), making it suitable for power plants, construction sites, or outdoor environments, ensuring reliable performance even in harsh conditions.
9
How does RATA ensure the reliability of the load bank in generator testing?
Through mature resistors, self-produced reactors, strict factory testing procedures, and a complete quality management system, we ensure that the equipment can operate stably for a long time under high current and high power conditions, meeting the needs of frequent testing and high load applications.
10
Can it be used for parallel generator testing?
Yes. The RATA 3750 kVA Resistive-Inductive Load Bank supports testing of multiple generators operating in parallel. It is used to verify load sharing, synchronization performance, and overall system stability.
11
Is customization available based on project needs?
Yes. RATA provides customized resistive-inductive load solutions tailored to your specific generator capacity, voltage level, testing standards, site environment, and control requirements.
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Contacts: Gong Zhenhua
E-mail: gongzhenhua@rata.top
Phone/ WhatsApp: 0086-13890270038
Address: Hongyu Road East, Jinshan Industrial Park, Luojiang Disctrict, Deyang. China
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