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High-Voltage & Low-Voltage Prefabricated Substation

Name: High-Voltage & Low-Voltage Prefabricated Substation
Brand: Zhejiang Tenrony Electricity Co., Ltd.
Availability: InStock

The prefabricated substation integrates high-voltage electrical equipment, transformers, low-voltage electrical equipment, and other related components into a compact and integrated device. An electric distribution substation is widely used in scenarios such as high-rise buildings in cities, infrastructure construction in urban and rural areas, residential communities, high-tech development zones, small and medium-sized industrial and mining enterprises, mines, oil fields, and temporary construction power supply, achieving efficient reception and distribution of electrical energy. In the distribution system, high voltage substation is suitable for both ring network distribution systems and dual power source or radial terminal distribution systems. high voltage substation is a new type of complete set of power equipment adopted in the construction and renovation projects of urban and rural substations. The prefabricated substation complies with the national standard GB/T 17467-2020 "High-Voltage/Low-Voltage Prefabricated Substations".

Products

Features

Core features

Outstanding integrity: The overall structure design is tight and highly integrated.

Obvious size advantage: Small in volume and compact in structure, saving space.

Safe and stable operation: hv substation has reliable operation performance, ensuring the safety of the power system.

Convenient and efficient maintenance: The later maintenance operation is simple and convenient.

Strong mobility: HV substation is easy to adjust the position and move according to the demand.

Advantages over conventional civil construction substations

Small land occupation: With the same capacity, the land occupation is only 1/10 to 1/5 of that of a conventional substation.

Low construction cost: Significantly reduces the design workload and construction volume, thereby lowering the construction cost.

Parameters

Main Technical Parameters
Name	Unit	High-voltage Electrical Equipment	Transformer	Low-voltage Electrical Equipment
Rated Voltage	kV	10	10/0.4	0.4
Rated Current	A	630		100～2500
Rated Frequency	Hz	50	50	50
Rated Capacity	kVA		100～1250
Rated Thermal Stability Current	kA	20/4S		30/1S
Rated Dynamic Stability Current(Peak)	kA	50		63
Rated Closing Short-circuit Current(Peak)	kA	50		15～30
Rated Breaking Short-circuit Current	kA	31.5(fuse)
Rated Breaking Load Current	A	630
1min Power Frequency Withstand Voltage	kV	Phase-to-ground,Phase-to-phase 42, and Across-the-isolator48	35/28(5min)	2.0/2.5
Lightning Impulse Withstand Voltage	kV	Phase-to-ground,Phase-to-phase 75, and Across-the-isolator 85	75
Enclosure Protection Level		IP23	IP23	IP23
Noise Level	dB		Oil-immersed≤55 Dry-type Transformer≤65
Number of Circuits	个	1～6	2	4～30
Maximum Reactive Power Compensation on Low Voltage Side	kvar			300

The Layout Form and External Dimensions
Prefabricated substation is arranged in a "目"shape (see Figure 1-1,Figure 1-2)ora"品"shape (see Figure 1-3,Figure 1-4)accordingto the arrangement.The external dimensions areshownin Figure 2 and Figure 3.
H	T		L	H	T
							H-High Voltage Compartment
Figure 1-1				Figure 1-2
							T-Transformer Compartment
T		H		H			L-Low Voltage Compartment
				T		L
		L
Figure 1-3				Figure 1-4

Figure1:layout of prefabrictaed substation

Parameters of High-Voltage/Low-Voltage Prefabricated Substation

Benefits

Structural Features

HV substation comprises high-voltage distribution equipment, transformers, and low-voltage distribution equipment. High voltage substation is divided into three functional compartments: the high-voltage compartment, the transformer compartment, and the low-voltage compartment. The high and low-voltage compartments are fully functional, and the primary power supply system on the high-voltage side can be arranged in various ways, such as ring network power supply, terminal power supply, dual power supply, etc. A high-voltage substation can also be equipped with high-voltage measuring components to meet the requirements of high-voltage measurement. The transformer compartment can choose SC, and other series of low-loss oil-immersed transformers or dry-type transformers. The low-voltage compartment can be panel or cabinet structured according to user requirements to provide the necessary power supply solutions, including power distribution, lighting distribution, reactive power compensation, electric energy metering, and power measurement, to meet the different requirements of users, while facilitating power supply management for users and improving power supply quality.
The high-voltage compartment features a compact and rational structure, equipped with comprehensive anti-misoperation interlocking functions. When required by the user, the transformer can be equipped with rails to facilitate convenient entry and exit from both sides of the transformer compartment.
Each compartment is equipped with automatic lighting devices. In addition, all hv substation components selected for the high and low-voltage compartments are reliable in performance, easy to operate, ensuring the safe and reliable operation of the product, and facilitating maintenance.
Two ventilation methods, natural ventilation and forced ventilation, are employed. The transformer compartment, as well as the high and low-voltage compartments, are equipped with ventilation ducts. The exhaust fan is equipped with a temperature control device that can automatically start and stop according to the set temperature, ensuring the normal operation of the transformer.
The box-type transformer structure is designed to prevent rainwater and dry from entering. The high voltage substation material selected is a color steel plate, which has anti-corrosion and thermal insulation functions. HV substation is suitable for long-term outdoor use, ensuring anti-corrosion, waterproof, and dust-proof performance, with a long service life and an attractive appearance.

Use

Applicable scenarios and functions

Applicable types of distribution systems: It can be used in both ring network distribution systems and dual power source or radial terminal distribution systems.
Application fields: It is a new type of complete set of equipment for the construction and renovation of urban and rural substations.

Foundation

Above 1000Pa Soil Bearing Capacity Requirement: Over 1000Pa.
The foundation is located in a higher terrain, with drainage in all directions. It is constructed using 200#cement mortar mixed with 3% proofing agent. The bottom is slightly inclined towards the oil tank (to be removed when a dry-type transformer is used).
The foundation construction shall comply with the relevant provisions of JGJ1683"Technical Code for Electrical Design of Buildings."
The grounding main line and grounding electrode shall be installed according to the conventional method, with a grounding resistance≤4ohms.
The dimensions in the figure are recommended values.