Customizable three-phase automatic voltage regulator
product description
Its core function is to precisely control the voltage, current, and power applied to the load, thereby ensuring the safety and stability of the circuit. The working principle of the three-phase voltage regulator is based on phase control technology. It regulates the output voltage by changing the conduction angle of the alternating current, achieving smooth voltage adjustment. In practical applications, the three-phase voltage regulator not only meets the voltage requirements of various electrical equipment， but also improves energy utilization efficiency by effectively controlling power transmission.
I. Core Classification and Principles
1. Contact Type (Self-Coupled Type, Mainstream TSGC/TSGC2)
Structure: Three single-phase ring-shaped iron core self-coupled voltage regulators are coaxially assembled, connected in Y configuration, and share a main shaft with carbon brushes. Principle: By turning the handwheel / servo motor, it drives the three-phase carbon brushes to slide synchronously along the polished surface of the windings, changing the turns ratio to achieve a continuous adjustable output voltage of **0~420V (380V input)**. Features: No harmonics, high efficiency (≥95%), pure waveform, strong overload capacity; however, there is carbon brush wear, requiring maintenance.
2. Thyristor Type (SCR / Power Regulator)
Structure: Each opposite parallel thyristor module + trigger control board, without mechanical moving parts.
Principle: Through phase angle / zero-crossing triggering, controlling the conduction angle of the thyristors to adjust the effective voltage / power of the load.
Features: No wear, fast response, easy remote control; but it generates harmonics, has a low power factor, suitable for pure resistive loads such as electric heating, industrial furnaces, etc. Core features (Contact Type)
Smooth stepless voltage regulation: Start adjusting from 0V, high precision, suitable for precise testing / equipment debugging.
Three-phase symmetrical output: Synchronous adjustment of coaxial carbon brushes, balanced three-phase voltages, no phase offset.
High efficiency and low consumption: Self-coupled structure, small excitation current, low no-load loss, energy-saving during long-term operation.
Pure waveform: No harmonic distortion, does not pollute the power grid, suitable for precision instruments, motor testing.
Simple maintenance: Only need to regularly check carbon brush wear, tighten connection terminals, no oil replacement required.
II. Typical Application Scenarios
Industrial Manufacturing: Factory testing of motors / transformers, electroplating / electrolysis power supply, temperature control of heat treatment furnaces, welding equipment voltage regulation.
Research and Laboratory: Power simulation for universities / research institutes, aging test of electronic equipment, three-phase load characteristic tests.
Equipment Matching: Front-stage voltage regulation for variable frequency power supplies, UPS testing, voltage adaptation for imported equipment (400V/480V).
New Energy: Low-voltage crossing test for photovoltaic inverters, test of energy storage converters (PCS).
III. Differences from Dry-Type Transformers
Three-phase voltage regulators: Continuous adjustable voltage (0~420V), self-coupled structure, Y connection, no fixed ratio, suitable for voltage regulation / testing scenarios.
Dry-type transformers: Fixed ratio (e.g. 10kV/0.4kV), isolated windings, Dyn11 connection, voltage cannot be adjusted, suitable for power distribution / voltage transformation scenarios.
IV. Selection Tips
Capacity matching: Select based on the rated current of the load × 1.2~1.5 times to avoid overload (e.g. 10kVA load selects 15kVA voltage regulator).
Voltage range: Conventional 380V input / 0~420V output; for voltage increase (e.g. 480V), customize.
Load type: Inductive load (motors) select contact type (no harmonics); pure resistive load (heating) can select thyristor type (lower cost).
Environmental conditions: Indoor select IP20, for humid / dusty environments select IP23+H class insulation.
technical specification
| Line voltage | Power line capacity | Dimensions | ||
| kV | MVA | Length(mm) | Width(mm) | heigh(mm) |
|
10-15kV(-20%~±20% Regulation range) |
8 | 2200 | 2000 | 2500 |
| 10 | 2800 | 2200 | 2500 | |
| 15 | 3000 | 2200 | 2600 | |
| 20 | 3200 | 2800 | 3000 | |
| 30 | 4000 | 3000 | 3000 | |
|
20~24kV (-20%~±20% Regulation range) |
8 | 2800 | 2200 | 2500 |
| 10 | 3000 | 2200 | 2600 | |
| 15 | 3200 | 2800 | 3000 | |
| 20 | 4000 | 3000 | 3000 | |
| 30 | 4300 | 3200 | 3500 | |
|
30~35kV (-20%~±20%) Regulation range) |
8 | 3000 | 2200 | 2600 |
| 10 | 3200 | 2800 | 3000 | |
| 15 | 4000 | 3000 | 3000 | |
| 20 | 4200 | 3200 | 3500 | |
| 30 | 4300 | 3500 | 3500 | |
NOTICE!
Important: Please provide the following information before placing your order:
1. Type of prefabricated substation;
2. Transformer model and capacity requirements;
3. Main wiring scheme for high and low voltage circuits;
4. Specifications and parameters for any special electrical components needed;
5. Desired shell color;
6. Names, quantities, and any other requirements for spare parts and accessories;
Two-year warranty
More than three certifications
15 years of accumulated experience
The main focus of our company lies in the products.
Factory pictures
Display area and dispatch area.
The exhibition we attended
Company profile
ABOUT OUR COMPANY
Golden Triangle Power Technology Co., Ltd. (stock name: Golden Triangle, stock code: 837424) was established in November 2009. Our company is a prestigious leader in the field of power products, excelling in research, development, production, sales, and technical services. Our extensive product line includes three-dimensional coil core transformers, amorphous alloy core transformers, amorphous three-dimensional coil core transformers, photovoltaic substations, energy storage equipment, high and low voltage switchgear, as well as European, American, Chinese outdoor box substations, and intelligent substations. As a production-service-oriented enterprise with expertise in EPC construction, our cutting-edge products serve a variety of sectors including the State Grid, Southern Power Grid, railways, mines, infrastructure, metallurgy, roads and bridges, and property management.
Golden Triangle has proudly earned numerous certifications including ISO9001:2015 quality management system certification, ISO14001:2015 environmental management system certification, ISO45001:2008 occupational health and safety management system certification, PCCC energy-saving product certification, national mandatory product "CCC" certification, CQC China quality certification, and the AAA credit rating. We are recognized as a national high-tech enterprise, a provincial "specialized, special and new" small and medium-sized enterprise, and among the top 100 most promising scientific and technological enterprises in the province. Additionally, we are honored as a municipal green factory. Our company is equipped with a provincial high-tech enterprise research and development center, an academician workstation, a doctor innovation workstation, 3 invention patents, and 51 utility model patents.
Our products have been showcased in the "Energy Saving and People Benefiting Project" and the "Recommended Catalog of Energy Saving Electromechanical Equipment" by the Ministry of Industry and Information Technology, the Ministry of Finance, and the National Development and Reform Commission. Golden Triangle is the first enterprise in Wenzhou's power industry to receive direct subsidies from the Ministry of Finance for product sales. We have been honored with multiple accolades, including titles for national industrial energy-saving technical equipment products and the first set of products in key fields of provincial equipment manufacturing. Our flagship products like the "SCB13-RL solid triangle iron core dry-type transformer" and the "SBH16-RL solid triangle rolled iron core amorphous transformer" adhere to "Zhejiang manufacturing quality standards." Our company has led the drafting of 10 standards, playing a pivotal role in energy conservation, emission reduction in China's power industry, and the promotion of green energy technology.
Customer visits the factory
FAQ
- Q: Are you manufacturer?
A: Yes, we are manufacturer. Our factory is in Wenzhou China
- Q: Can I get guarantee of products?
A: Yes, every product is 1 year quality warrantee under customer correct using the products.
- Q: Do you have any Certificate?
A: Yes. Each of our unit has CCC, ISO9001 certificate. All the electric parts with CE certificate, If you need any other Certificate, we can help you to get it.
- Q: How to buy it? What about the delivery?
A: Please contact me by email or online, let me know your situation, I will give you professional solution. We have shipping agent can choosing the cheapest and fastest delivery. FOB, CIF, C&F or EXW are no problem for us.
- Q: What's the payment terms?
A: For small testing orders, we can accept Waster union, T/T and Credit card.
For mass orders, we accept t/t and L/C.
- Q: What about the production?
A: Produce time is 4~6weeks.
- Q: Could you offer some spare parts?
A: Yes, no problem.
- Q: What about the maintenance?
A: All the goods past the test, maintenance is very easy.
The company adheres to the quality policy of "quality first, honestservice, strict management, and striving for perfection", and gives back tothe majority of users with first-class technology, first-class quality, and first-class service. We warmly welcome people from all walks of life to visit us forguidance and negotiation, to seek common development, to jointly build a'win-win" and to create a better future with you !