Substation

Jiangsu Tianli Electromechanical Co.,Ltd: Your Professional Substation Manufacturer!

Our company is a high-tech enterprise specializing in the research and development, production, and sales of transformers and switchgears. It originated from the Haian Transformer Factory established in 1978. As one of the pioneers in the transformer manufacturing industry in China, we have accumulated extensive industry experience and technical expertise, and we have been honored with the title of one of the first "China Famous-Brand Products" in the transformer industry.

Integral Unit Substation
Huashi box-type substation, generally abbreviated as Huashi substation, is a localized prefabricated substation that is different from both American and European box-type substations.
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Pre-fabricated Cabin Shore Power Supply System
Prefabricated cabin shore power supply system: Using land-based power supply to meet the power demand of berthing vessels. In order to reduce the fuel and harmful gases emitted during the...
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Modular Transformer
A combined transformer is a voltage transformation device that connects two or more single-phase transformers through the introduction of a neutral line.
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Pre-assembled Substation
A prefabricated substation is an integrated substation that includes transformers, high-voltage switchgear, low-voltage switchgear, and related protection and control equipment. It is...
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Photovoltaic Transformer
The 35KV photovoltaic box-type transformer is a product developed by our company in combination with advanced domestic and international technologies and experiences. It serves as a backup power...
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Wind Power Transformer
The working principle of wind power generation technology is a renewable energy technology that can convert wind energy into electrical energy. Wind power generation converts wind energy into...
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Why choose us?

Global competitive pricing

Breaking the bias that "high quality must come at a high price," we make cutting-edge electromechanical equipment accessible. Leveraging 39 years of local supply chain expertise and a global logistics network, we reduce overall costs by over 30%. Our tiered pricing model ensures economies of scale—orders as small as 100 units enjoy a 10% price drop per unit. Transparent cost breakdowns detail raw materials, process premiums, and certification fees, eliminating hidden markups.

Zero-risk manufacturing

End-to-end risk control from blueprint to delivery ensures your success. First-article inspection locks in standards, guaranteeing consistency before mass production. Payment is phased for security: 30% deposit to start → 70% upon shipment → 100% after acceptance. Double warranty coverage: 24-month extended protection, surpassing the industry's standard 12 months.

Elite engineering & rapid customization

Our veteran R&D team brings 30+ years of power-electrical design expertise, backed by 50+ patents and technical collaboration with Shanghai Electric Power Research Institute (top-tier in China). Custom electromagnetic solutions delivered within 72 hours of request.

Reliable product quality

Every unit undergoes 100% testing under our comprehensive quality management system. Specialized products endure 72-hour salt spray tests, shock/vibration resistance, stable operation from -40°C to 55°C, and 95% RH humidity tolerance. Proven reliability: 10-year zero-failure record on South China Sea oil rigs.

Benefits of Substation

Efficient power transmission and distribution

Substations ensure that voltage levels are optimal for both transmission and consumption.

Voltage regulation and control

Electrical substations also maintain a stable voltage throughout the electrical grid.

Grid stability and reliability

Substations help prevent grid failures by regulating power flow and isolating faults.

Reduction of power loss

By transforming voltage to appropriate levels, substations minimize power loss during transmission.

Product Specifications

Main Technical Data Of The Substation
Description	Unit	Specifications
Rated voltage	kV	10/0.4(HV/ LV)
Max. operating voltage	kV	12(HV compartment)
Rated frequency	Hz	50
Rated Ca pacity	kVA	50-1600
Rated power frequency withstand voltage(lmin)	kV	35
Rated lighting impulse withstand voltage	kV	75
Cooling		Oil-immersed self-cooled
Rated breaking current of high voltage backup fuse	kA	50
Rated breaking current of plug-in fuse	kA	2.5
Air temperature	°C	-35~+40
Coil ternperatu re rise	°C	65
No load tap		±5％or±2X2.5%
Noise Level	db	50
Degree of protection		IP43

Application of Substation

Voltage transformation

Keep in mind, one important function is adjusting voltage levels. For example, at electricity generation facilities, electricity is produced at a very high voltage, and so later at substations, it is stepped down to safer levels used in homes and industries.

Power distribution

The next function is to follow the voltage management; power is then distributed to residential as well as business sectors. The power substation directs the electricity to various distribution feeders. Each feeder is then supplied with electricity to different locations while receiving the right supply.

Switching operations

Next, the substations can connect and disconnect different sections of the network. This helps maintain and service the network or reduce some urgent scenarios.

Protection and safety

Most importantly, substations ensure the safety of the system and the equipment from faults through circuit breakers and relays.

Power quality control

Power quality control is an important function to control voltage and frequency. That’s why your appliance remains safe and energy efficient.

How to Cooperate With Us

The first and most important step is that you contact us. Our process begins the minute you call or email Pacific Transformer.

RFQ

Whether you request a quote for a new product design or an existing part, you should have a price in 48 hours.

Prototype

After you receive your pricing the prototyping process begins. This generally takes two weeks or less.

Production

Once we receive approval of the prototypes, the production turnaround time should be two weeks.

Manufacturing

Our ISO 9000 certified process is central to all manufacturing operations. All our products are made using our UL listed insulation system.

Packaging and Shipping

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Products Description

Q: What are the main types of substations?

A: Substations are categorized by their function within the power system. Common types include step-up substations near power plants to increase voltage for transmission, step-down substations to reduce voltage closer to consumers, distribution substations for final delivery, and switching substations that only connect or disconnect lines without changing voltage. There are also converter substations for HVDC links and collector substations for renewables.

Q: What are the key components of a substation?

A: A substation consists of several key components working together. These include power transformers for voltage conversion, switchgear (circuit breakers and disconnect switches) for protection and control, busbars for collecting and distributing power, instrument transformers (CTs and PTs) for measurement, and a grounding system for safety.

Q: What is the purpose of switchgear in a substation?

A: Switchgear is a critical component that controls, protects, and isolates electrical equipment within the substation. It comprises circuit breakers, fuses, and switches that can quickly interrupt the flow of electricity to isolate faults, like short circuits or overloads, thereby preventing damage to the system and ensuring the safety of personnel.

Q: How are transformers used in a substation?

A: Transformers are considered the heart of a substation. They are used to step up the voltage of electricity leaving a power plant for efficient long-distance transmission and to step down the voltage to lower, safer levels for distribution to homes and businesses. This transformation minimizes energy loss and makes electricity compatible with end-user equipment.

Q: How does a substation protect the electrical grid?

A: A substation protects the grid using a sophisticated combination of protective relays, circuit breakers, and other equipment. Protective relays continuously monitor the system and, upon detecting an electrical fault, trigger circuit breakers to trip and isolate the affected section. This prevents cascading failures and minimizes damage to critical equipment.

Q: What safety measures are in place at a substation?

A: Substations have strict safety measures, including fencing to control access, grounding grids to dissipate fault currents, lightning arresters to protect against surges, and robust protective relaying systems to detect and isolate faults. Proper lockout/tagout procedures are mandatory for maintenance, and personnel must use appropriate personal protective equipment (PPE).

As one of the leading substation enterprises in China, we warmly welcome you to buy high quality substation for sale here from our factory. Good service and reasonable price are available.

Combined type transformer, Transformer for Wind Power Generation, Wind driven Generator Transformer