Three-Phase Stabilized Power Supply With Fully-automatic Compensation
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 1000 pc/month
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SBW 20-320KVA
SBW Three-Phase Stabilized Power Supply with fully-automatic compensation is suitable for the electric network with unbalanced three-phase voltage inputs. It can balance three-phase outputs automatically and maintain the output in good condition during the fluctuation of electric network and load.
Model | SBW (Independent regulator voltage) | SBW(Dependent regulator voltage) | |||||||
VA Rating | 20KVA | 30KVA | 50KVA | 100KVA | 50KVA | 100KVA | 180KVA | 225KVA | 320KVA |
Input | |||||||||
Phase | Three Phase＋N+GND | ||||||||
Voltage Range | Phase voltage 220V±20%、Line voltage 380V±20% | ||||||||
Output | |||||||||
Voltage Range | 220V AC (Phase Voltage)、380V AC (Line voltage) | ||||||||
Voltage Precision | ≤±3% | 2%~5% (adjustable) | |||||||
Frequency | 50/60Hz | ||||||||
Efficiency | ≥95% | ||||||||
Others | |||||||||
Protection | Overvoltage, overcurrent, loss of phase, phase-sequence and mechanical failure protection | ||||||||
Noise(dB) | ≤50 | ||||||||
Display Mode | LED Indicator Light; Pointer voltmeter | ||||||||
Input/Output Connection | Terminal Block | ||||||||
Waveform Distortion | No additional waveform distortion | ||||||||
Response Time | ≤1.5s(External voltage change 10%) | ||||||||
Insulation Resistance | ≥2MΩ | ||||||||
Dielectric Strength | Low frequency sine voltage 1500 for 1 minute (without the phenomena of breakdown and flashover) | ||||||||
Overload Capacity | 120% of rating current ＞10s | ||||||||
Ambient Temperature | -10℃～+40℃ | ||||||||
Relative Humidity | 20%~85% | ||||||||
Working | Continuing Working | ||||||||
Dimension(W×D×H)mm | 730x485x1110 | 810x570x1410 | 990x620x1530 | 800x600x1520 | 900x700x1660 | 1100x835x1830 | 1100x850x1830 | 1240x900x2109 | |
Net Weight (kg) | 160 | 185 | 245 | 410 | 280 | 415 | 645 | 765 | 945 |
Packing Dimension(W×D×H)mm | 780x555x1160 | 860x640x1460 | 1040x690x1580 | 850x670x1570 | 950x770x1710 | 1150x905x1880 | 1150x920x1880 | 1290x970x2159 | |
Gross Weight (kg) | 175 | 200 | 266 | 435 | 310 | 439 | 673 | 810 | 995 |
· Q. What is an UPS and What it is for ?
An uninterruptible power supply (UPS) is a device that allows your computer or telephone switch or critical equipement to keep running for at least a short time or longer time when the primary power source is lost. It also provides protection from power surges, spikes, brownouts, interference and other unwanted problems on the supported equipment.
· Q. How long the UPS to run when power goes?
This can take 3 paths.
1.You can pick a UPS that is rated for pretty much the full VA you need so it will be running at 100% of capability and will thus last 'n' minutes.
2.You can pick a UPS that is rated at a much higher VA value than you really need so, for example, is running at 50% of capability and will thus last for longer than the UPS from option 1.
3．You can use extra external battery packs to run for longer. If charging capability allows, the more and the bigger batteries you take with, the longer time UPS runs.
or using a generator after about 6 hours, it will be more cost-effective, with a short runtime UPS to bridge the generator start-up gap.
- Q: Can a solar inverter be used with a solar-powered air purification system?
- Yes, a solar inverter can be used with a solar-powered air purification system. A solar inverter converts the direct current (DC) generated by solar panels into usable alternating current (AC) electricity, which can power various appliances or devices, including air purification systems. By connecting a solar inverter to a solar-powered air purification system, it can efficiently operate using renewable energy from the sun.
- Q: Can a solar inverter be used in areas with high levels of electromagnetic interference (EMI)?
- Yes, a solar inverter can be used in areas with high levels of electromagnetic interference (EMI) as long as it is properly shielded and designed to withstand such conditions. However, it is important to choose an inverter that meets the necessary EMI compliance standards to ensure reliable and efficient operation in these environments.
- Q: What is the role of a solar inverter in voltage and frequency regulation during islanding conditions?
- During islanding conditions, which occur when a distributed generation system (such as a solar PV system) continues to supply power to a local area even when the main electrical grid has been disconnected, the role of a solar inverter is crucial in maintaining voltage and frequency regulation. When a solar inverter operates in grid-connected mode, it synchronizes its output voltage and frequency with the utility grid. However, during islanding conditions, the solar inverter must transition into a standalone mode, where it becomes responsible for regulating voltage and frequency within the isolated microgrid. The primary function of a solar inverter in islanding conditions is to ensure that the voltage and frequency of the generated electricity remain within acceptable limits. It does this by constantly monitoring the electrical parameters and adjusting its own output accordingly. To regulate voltage, the solar inverter adjusts its output voltage based on the demand and the available power from the solar panels. It maintains a steady voltage level within a specified range, typically around 230-240 volts for residential applications. Frequency regulation is equally important, as it ensures that the electrical devices connected to the microgrid operate at their designed frequency, typically 50 or 60 Hz. The solar inverter continuously monitors the frequency and adjusts its output to match the required frequency, minimizing fluctuations and maintaining stability. In addition to voltage and frequency regulation, a solar inverter also provides other important functions during islanding conditions. These include power quality control, protection against overvoltage and overcurrent, and safe disconnection in case of emergencies or grid restoration. Overall, the role of a solar inverter in voltage and frequency regulation during islanding conditions is critical to maintain a stable and reliable power supply within the isolated microgrid. It ensures that the electricity generated by the solar PV system remains within acceptable parameters, allowing the connected electrical devices to operate efficiently and safely.
- Q: What is the role of a grid protection relay in a solar inverter?
- The role of a grid protection relay in a solar inverter is to monitor the electrical grid for any abnormalities or faults, and to disconnect the solar inverter from the grid if necessary. This helps to ensure the safety and stability of the grid, as well as protecting the solar inverter from potential damage.
- Q: How does a solar inverter handle voltage regulation during sudden load changes?
- A solar inverter handles voltage regulation during sudden load changes by continuously monitoring the voltage and current outputs from the solar panels. When there is a sudden increase or decrease in the load, the inverter adjusts its power output accordingly to maintain a stable and consistent voltage level. This is achieved through a combination of control algorithms and power electronics within the inverter, ensuring that the voltage remains within an acceptable range to meet the demands of the load.
- Q: What is the role of a solar inverter in net metering?
- The role of a solar inverter in net metering is to convert the direct current (DC) electricity generated by solar panels into alternating current (AC) electricity that can be used to power household appliances or fed back into the electric grid. It ensures that the electricity produced by the solar panels is synchronized with the grid's voltage and frequency. Additionally, the solar inverter allows for the measurement and tracking of the energy generated and consumed, enabling accurate net metering calculations and billing.
- Q: What are the common fault indications in a solar inverter?
- Some common fault indications in a solar inverter include a sudden loss of power output, frequent or recurring tripping of the inverter, abnormal or fluctuating voltage readings, unusual noises or smells emanating from the inverter, error messages or fault codes displayed on the inverter's screen, and physical damage or visible signs of overheating.
- Q: Can a solar inverter be used with different types of communication protocols?
- Yes, a solar inverter can be used with different types of communication protocols. Modern solar inverters are designed to be compatible with various communication protocols such as Wi-Fi, Ethernet, Modbus, and RS485. This allows for seamless integration and monitoring of the solar inverter with different types of monitoring systems, smart home devices, or energy management systems.
- Q: Can a solar inverter be used for both grid-tied and off-grid systems?
- No, a solar inverter cannot be used for both grid-tied and off-grid systems. Grid-tied inverters are designed to convert solar energy into electricity and feed it back into the grid, while off-grid inverters are designed to convert solar energy into usable electricity for standalone systems not connected to the grid. The requirements and functionalities of both types of systems are different, so separate inverters are needed for each.
- Q: What is the maximum efficiency rating of a solar inverter?
- The maximum efficiency rating of a solar inverter can vary depending on the model and manufacturer, but typically it ranges from 95% to 98%.
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Three-Phase Stabilized Power Supply With Fully-automatic Compensation
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 1000 pc/month
OKorder Service Pledge
OKorder Financial Service
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