3 Phase 100kVA Servo Motor AVR

The 3 Phase 100KVA Servo Motor AVR is internally equipped with a widened column-type voltage regulating coil and an oversized carbon brush component. The electromagnetic redundancy design enables it to handle extreme "power fluctuations" events where the upstream power grid drops to 60% of the rated voltage temporarily with ease: upon voltage recovery, the stabilizer can respond quickly and stabilize the output within the acceptable range, preventing the downstream frequency converters and servo drives from stopping due to under-voltage alarms.

At the same time, its giant compensation transformer has excellent magnetic saturation characteristics, which can provide sufficient current shock support when multiple large-power motors (total power approximately 80KW) are simultaneously started, unlike electronic equipment that is prone to triggering instantaneous overcurrent lockout easily.

Product Parameter

Key Features

1. Distribution Hub-level Capacity

Rated capacity 100KVA, rated current approximately 152A (three-phase 380V). It can be directly installed in the factory main distribution room or the main incoming cabinet of the building, serving as a centralized voltage regulation node for the entire workshop, entire building or park area. This simplifies the distribution structure and reduces the coordination risks of multiple small-capacity devices connected in parallel.

2. Anti-power fluctuation capability

Based on the electromagnetic induction type ultra-large capacity transformer, it has extremely strong voltage sudden drop tolerance. When the input voltage drops to 60% - 70% of the rated value, the stabilizer can still maintain stable output, effectively resisting "power fluctuations" caused by lightning strikes, actions of upper-level switches or large load switching, and avoiding sensitive equipment tripping due to under-voltage.

3. Dynamic and thermal stability

For extreme working conditions where dozens of motors in a large workshop simultaneously start up, SBW-100KVA can withstand short-term (≤5 seconds) currents several times the rated current without tripping or bypassing, ensuring the smooth self-starting of the equipment group and compressing the production recovery time from "hour level" to "second level".

4. Heavy-duty mechanical structure

The cabinet size is 700×550×1300mm, with a net weight of 175kg. The internal structure uses thick copper coils and high magnetic permeability oriented silicon steel sheet cores, with an insulation level of A grade. The mechanical strength and electrical margin of the entire machine are sufficient, and the design service life exceeds 15 years. There is no need for large-scale replacement of core components throughout the entire life cycle.

5. Minimal maintenance design

The 3 Phase 100KVA Servo Motor AVR adopts international standard size drawer-type carbon brush components, allowing for visual inspection and quick replacement without disassembly; the internal layout is clear, and the connection terminals use standard copper busbars for easy regular tightening and infrared temperature measurement inspection. The spare parts are highly versatile, with short procurement cycles and low costs.

6. Multi-level protection and redundant bypass

Integrated with six layers of electrical protection (overload, overvoltage, undervoltage, short circuit, overheating, phase loss), and equipped with manual/automatic dual bypass switches. The automatic bypass switches can switch instantly in case of internal abnormalities to ensure continuous power supply for the load; the manual bypass is convenient for equipment maintenance without production interruption, meeting the requirements of continuous production for large enterprises.

7. Intelligent monitoring interface

Standard RS485 communication interface (Modbus-RTU protocol), and optional Ethernet communication module. It can upload input/output voltage, load rate, internal temperature, alarm events and other operation data to the upper computer system in real time, achieving centralized monitoring and fault warning by the operation and maintenance center.

Product Applications

1. Large-scale automobile manufacturing and heavy industry stamping workshop: Provide total incoming line voltage stabilization for 1000T and above stamping lines, welding robot clusters, and large-scale painting workshops, ensuring consistency in stamping cycle and welding quality.

2. Tertiary hospitals and medical parks: Installed in the main distribution room of the hospital, providing centralized power supply management for imaging centers (multiple MRI, CT, DSA), operating room purification air conditioning, and large-scale sterilization equipment in the central supply room, ensuring patient safety and equipment asset security.

3. Regional-level data centers and communication hubs: Located on the incoming line side of medium-sized IDC computer rooms or provincial communication convergence computer rooms, reducing the impact of front-end voltage fluctuations on high-frequency switching power supplies and precision air conditioning compressors, and extending the lifespan of UPS battery packs.

4. Large commercial complexes and exhibition centers: Provide full-range voltage stability for lighting power, central air conditioning main units, escalator systems in five-star hotels, large shopping centers, and international exhibition centers, avoiding customer complaints and operational losses due to voltage fluctuations.

5. Municipal water supply and sewage treatment: Installed at the incoming line ends of urban water supply pump rooms and large sewage treatment plant aeration fan rooms, ensuring the continuous and uninterrupted operation of key infrastructure for public services during power grid fluctuations in the rainy season.

6. Large cold storage and food processing: Provide voltage stabilization protection for ammonia refrigeration compressor groups, rapid freezing tunnel fans, and automatic packaging lines' power distribution systems, preventing abnormal voltage from causing temperature runaway in the cold storage and resulting in huge losses.

Why choose this 3 Phase Servo Motor AVR?

1. The 3 Phase 100KVA Servo Motor AVR uses all-copper coil winding and high-grade A-level insulation system. The actual copper and iron usage far exceeds the industry's average level, ensuring extremely low hysteresis and eddy current losses (efficiency ≥ 96%) under full-load conditions. Its only vulnerable component - carbon brushes - use international standard-sized copper-graphite material, with a replacement cycle of up to 3-5 years, and the spare parts are highly versatile, with a very low single-time replacement cost.

2. The overall design reserves sufficient electrical and mechanical margins, eliminating the "countdown-style" failure problems faced by power electronic equipment such as electrolytic capacitor drying out and IGBT module aging during the service life. For the financial department, this is a fixed asset that can be depreciated for over 15 years, with an extremely competitive annual amortization cost.

3. The structural design of the 100KVA model fully considers the practical needs of large-scale users: adopts side-opening maintenance doors and drawer-type carbon brush frames, with carbon brush inspection and replacement completed within 20 minutes, without the need to disconnect the main circuit of incoming lines; equipped with large-screen LED digital meters and fault code indicators, allowing a first-line electrician to quickly locate the problem; reserved RS485 communication interfaces support connection to DCS or power monitoring systems, enabling remote measurement, remote signaling, and remote control.

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. What is the rated current of the 100KVA stabilizer? What are the requirements for the front-end incoming cable?

The rated current of the three-phase 380V stabilizer is approximately 152A. Considering the efficiency loss of the stabilizer itself (about 4%) and possible short-term overload, 3 Phase 100KVA Servo Motor AVR is recommended to configure a molded case circuit breaker (MCCB) with a capacity of no less than 200A at the front end. The incoming cable is recommended to use YJV 3×70mm² + 2×35mm² or higher specifications (copper core), and the specific selection should be verified based on the actual laying distance (≤50 meters) to calculate the voltage drop. We can provide you with a free cable selection calculation sheet.

2. How does this equipment match with the front-end transformer (such as 1250KVA)?

The SBW-100KVA is suitable for the low-voltage side main feeder branch of transformers with a capacity of 500KVA to 1600KVA. It acts as a "stabilization isolation layer" inserted between the transformer and the workshop load. It is recommended to install an isolation circuit breaker and a lightning arrester at the front end of the stabilizer, and configure distribution cabinets for different process zones at the rear end according to the different processes in the workshop to achieve graded protection.

3. What is the specific level of "anti-vibration shock" capability?

When the input voltage drops to 60% of the rated value within 100ms (i.e., 228V), the output voltage of the SBW-100KVA can still maintain within ±3% (i.e., 369V - 392V). This is crucial for the rear-end frequency converters and contactors to maintain engagement. For longer duration deep drops, it is necessary to combine the front-end ATS and generator system for coordinated response. We can provide an overall power supply continuity solution.

4. How is the major overhaul cycle and the cost of main spare parts replacement?

It is recommended to conduct a comprehensive maintenance every 5 years (including carbon brush replacement, bearing lubrication, tightening terminals, and insulation testing). The carbon brush assembly is the only regular consumable, and the cost of batch replacement is much lower than the cost of replacing the entire power board of the electronic stabilizer. The overall design life of the machine is >15 years, and the core transformer can operate for more than 20 years.

5. How does the dual-bypass function ensure continuous production in actual operation?

The equipment panel has a "stabilization/bypass" selection switch. When maintenance is required, switch the switch to the "bypass" position (at this time, the internal contactor will directly connect the load to the mains power), the stabilizer body can be safely powered off for maintenance, and the load power supply will not be interrupted. After the maintenance is completed, switch back to the "stabilization" mode. The entire process supports non-stop production operation, but it must be performed by a certified electrician.

6. Is there any special requirement for the installation ground for the 175kg weight?

The equipment has a load-bearing base and four installation fixing holes. For a regular cement floor, it can be directly placed and installed; for an overhead anti-static floor or floor slab, it is recommended to install a 10# channel steel load-bearing base at the bottom of the equipment to distribute the weight to the structural beams and columns. Our installation drawings will clearly indicate the load requirements and fixed dimensions.