3 Phase 300kVA SCR Static AVR

The electricity consumption characteristics of modern large-scale commercial complexes are as follows:

· Complexity: It integrates various types of loads such as power (air conditioning/ elevators), lighting, and electronic information (POS/security/communication), and each type of load has different requirements for power quality.

· Variability: The difference in electricity consumption between day and night, weekdays and holidays, peak and off-peak business hours can reach several times. Severe load changes lead to frequent fluctuations in bus voltage.

· Sensitivity: Cashier systems, information display systems, and security monitoring systems are extremely sensitive to voltage fluctuations. A voltage drop of just a few milliseconds can result in the loss of hundreds of transaction data or the restart of the security system.

The 3 Phase 300KVA SCR Static AVR adopts three-phase independent compensation technology, which can effectively address the problem of three-phase load imbalance and can withstand voltage drops caused by the startup of large motors, ensuring that sensitive loads under the same bus do not suffer any impact.

Product Parameter

Key Features

1. Large-capacity hub-level design

Rated capacity 300KVA, output current 456A. 3 Phase 300KVA SCR Static AVR can be used as the main incoming voltage stabilizing hub for a tower building or a functional area (such as the shopping center area or office area) of a commercial complex, achieving centralized management and reducing the investment cost and management complexity of multi-node decentralized configuration.

2. Resisting the impact of large power equipment startup

The startup current of large cooling units, fire pumps, escalators, etc. can reach 6-8 times the rated current. The SCR contactless compensation architecture of SBWZ-300KVA has excellent transient response capabilities and can continuously and stably output voltage during motor startup, preventing other equipment on the same bus from being disturbed.

3. Adapting to green building and smart building standards

Efficiency ≥ 99%, with extremely low self-loss, meeting the strict energy efficiency requirements of green buildings for power distribution equipment. Standardized with RS485 communication interface, it can seamlessly connect with building automation systems (BAS) and energy management systems (EMS), assisting in LEED, BREEAM, etc. green building certifications.

4. Three-phase independent high-precision regulation

In commercial buildings, single-phase lighting and office equipment are abundant, and three-phase current imbalance is the norm. SBWZ-300KVA independently samples and controls the voltage of each phase to ensure the accuracy and symmetry of the three-phase output voltage and eliminate power usage hazards caused by neutral point drift.

5. Contactless maintenance-free design

The property management team usually does not have a full-time power engineer on staff, so the simplicity of equipment maintenance is crucial. SBWZ-300KVA has no carbon brushes, servo motors, or mechanical wear, and only requires daily ventilation and cleaning to reduce the operation and maintenance manpower and spare parts reserve costs of the property.

6. Comprehensive visualized power quality

Digital LED display screens present real-time three-phase voltage, current, and power data, making the equipment status clear at a glance. The data uploaded through the communication interface can generate power quality trend charts on the BAS workstation, providing data support for energy audits and equipment energy efficiency analysis.

Product Applications

1. Large-scale shopping center: Provides centralized voltage stabilization for the lighting, escalators, air conditioning systems, cash registers and information networks of the entire commercial floor, ensuring the normal operation of merchants and the consumer experience.

2. Grade A office building: Acts as the main power stabilization hub for the entire tower, providing stable power for office lighting, precision IT equipment, elevator groups, and VAV air conditioning systems within the building.

3. Five-star hotel: Provides comprehensive voltage protection for the banquet halls, conference centers, SPA facilities, laundry rooms, kitchen equipment, and guest room control systems of the hotel, preventing voltage fluctuations from affecting the guest experience.

4. Large exhibition centers and sports venues: Used for the voltage stabilization of the lighting systems (especially LED screens and stage lights), broadcasting systems, access control and security systems, ensuring the safety and smoothness of large-scale events.

5. Airports and transportation hubs: Provides stable power supply for the baggage sorting systems, security equipment, escalators and elevators, broadcasting systems, and commercial areas of the terminal building.

Customization Services

KTAC provides OEM/ODM services, including appearance color, packaging method, input/output voltage range, and special function modules (such as EMI filter devices, lightning protection devices, RS232/RS485 monitoring interfaces), etc. Please contact us for customized solutions.

FAQ

1. How can the 3 Phase 300KVA SCR Static AVR be integrated into the Building Automation System (BAS)?

The device is equipped with an RS485 communication interface and supports the Modbus-RTU protocol. Through a gateway device, the Modbus protocol can be converted into BACnet or KNX protocols, enabling connection to mainstream BAS platforms such as Honeywell, Siemens, and Johnson Controls. The device can upload real-time voltage, current, power, load rate, and alarm status, and also receive remote instructions from the BAS for parameter setting.

2. What are the main sources of voltage fluctuations in commercial complexes?

The main sources include: frequent start-stop of large chillers (especially centrifugal compressors), the start-stop of escalators, daytime load fluctuations of the municipal power grid, and the electricity consumption of large equipment of adjacent tenants. The SBWZ-300KVA's millisecond-level response capability can effectively address all these fluctuation sources.

3. What does a 300KVA capacity mean for commercial buildings?

Take a 50,000-square-meter shopping center as an example. Its total distribution capacity is usually between 5,000 and 8,000 KVA. The 300KVA covers approximately 5% to 8% of the load, which is usually one or two feeder lines (such as the main bus for air conditioning units). The load served by SBWZ-300KVA is often the "critical minority" of the entire building's power supply guarantee.

4. How much does ultra-high efficiency save on the operating costs of commercial buildings?

Assuming a 300KVA capacity, an average load rate of 70%, a commercial electricity price of 1.0 yuan per kilowatt-hour, and 8,760 hours per year:

· Using SBWZ-300KVA (efficiency 99%), the annual loss is approximately 300 × 0.7 × (1 - 0.99) × 8760 ≈ 18,396 kWh

· Using a traditional servo voltage stabilizer (efficiency 96%), the annual loss is approximately 300 × 0.7 × (1 - 0.96) × 8760 ≈ 73,584 kWh

· Annual electricity savings ≈ 55,188 yuan. Over a decade, savings exceed 550,000 yuan, significantly reducing operating costs.

5. What are the requirements for equipment installation in the building's distribution room?

The requirements for the distribution room are a net height of no less than 2.2 meters, a maintenance passage of ≥ 0.8 meters before and after the equipment, an ambient temperature not exceeding 40°C, no corrosive gases or conductive dust. It is recommended to use YJV 3×150mm² + 2×70mm² or higher specifications for incoming cables (copper core), and 630A or above for the front-end circuit breaker.