35kV Low Loss Prefabricated Compact Substation for Grid
Key attributes
| Brand | POWERTECH |
| Model NO. | 35kV Low Loss Prefabricated Compact Substation for Grid |
| Rated voltage | 35kV |
| Series | YBW-35/0.4-2000 |
Product descriptions from the supplier
Description
An AC metal-enclosed shift switch cabinet is a three-phase, 50Hz indoor metal-enclosed switching device designed for power plants and substation systems. It operates at a rated voltage of 35kV, with a maximum current capacity of 2000A and a voltage limit not exceeding 40.5kV. Suitable for single-bus or single-bus segmented configurations, it serves as a reliable distribution solution.
This switchgear complies with standards such as DL/T 404-91, IEC 298, and GB 3906, incorporating essential safety features to prevent operational errors. These include protections against incorrect circuit breaker operation, live insertion or withdrawal of trolleys, grounding line faults, live grounding, and accidental energization of isolated sections (commonly referred to as the "five protections").
Compact substations are ideal for diverse applications, including residential communities, urban public distribution networks, busy downtown areas, and temporary construction power supply. Their versatility allows selection based on specific load requirements and environmental conditions. Since their introduction, compact substations have seen rapid adoption, with widespread use in developed countries—where they account for a significant share of distribution systems. In China, modernization and urban grid upgrades are driving their increasing deployment.
These substations are commonly employed in high-rise buildings, luxury residences, parks, residential complexes, small to medium industrial plants, mining operations, oil fields, and temporary construction sites, providing efficient power distribution within electrical networks.
Features
Complete Power Distribution System – Integrates transformation, distribution, transmission, measurement, compensation, control, protection and communication functions in one unit.
Standardized Components – Consists of high-voltage switchgear, distribution transformer, low-voltage distribution panel and protective enclosure.
Outdoor Application Design – Features anti-corrosion, waterproof and dustproof construction suitable for long-term outdoor operation.
Compact Structure – Three-section integrated design (high-voltage, transformer, low-voltage) with small footprint.
Installation Advantages – Offers flexible siting, reduced civil works, shorter construction period and lower overall cost compared to conventional substations.
Reliable Operation – High operational stability with comprehensive protection functions.
Aesthetic Appearance – Modern enclosed design with better visual appeal than traditional solutions.
Wide Application Range – Ideal for urban grid upgrades, residential communities, industrial parks, commercial centers, transportation facilities and temporary power supply needs.
Technical Compliance – Meets relevant industry standards for performance and safety requirements.
Maintenance Friendly – Modular design simplifies inspection and servicing procedures.
Parameter
Related Products
-
75 kVA ~ 2500 kVA UL-Listed Explosion-Proof Standard Pad-Mounted Transformer
-
12kV 24kV 36kV Outdoor Prefabricated Transformer Substation
-
UL Listed Three Phase Pad Mounted Power Transformer
-
UL 15-500kVA Oil Filled Single Phase Pad Mounted Transformer
-
75 KVA - 3750 KVA ZGS Three Phase Pad Mounted Transformer
-
12kV 24kV 36kV 40.5kV Prefabricated Substation(US-style, EU-style)
-
30-2000kVA for Electricity Generation Electric Power Prefabricated Compact Box Substation
Related Knowledges
-
Faults and Handling of Single-phase Grounding in 10kV Distribution LinesCharacteristics and Detection Devices for Single-Phase Ground Faults1. Characteristics of Single-Phase Ground FaultsCentral Alarm Signals:The warning bell rings, and the indicator lamp labeled “Ground Fault on [X] kV Bus Section [Y]” illuminates. In systems with a Petersen coil (arc suppression coil) grounding the neutral point, the “Petersen Coil Operated” indicator also lights up.Insulation Monitoring Voltmeter Indications:The voltage of the faulted phase decreases (in01/30/2026 -
Neutral point grounding operation mode for 110kV～220kV power grid transformersThe arrangement of neutral point grounding operation modes for 110kV～220kV power grid transformers shall meet the insulation withstand requirements of transformer neutral points, and shall also strive to keep the zero-sequence impedance of substations basically unchanged, while ensuring that the zero-sequence comprehensive impedance at any short-circuit point in the system does not exceed three times the positive-sequence comprehensive impedance.For 220kV and 110kV transformers in new constructi01/29/2026 -
Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?In substations, equipment such as power and distribution transformers, transmission lines, voltage transformers, current transformers, and disconnect switches all require grounding. Beyond grounding, we will now explore in depth why gravel and crushed stone are commonly used in substations. Though they appear ordinary, these stones play a critical safety and functional role.In substation grounding design—especially when multiple gr01/29/2026 -
Why Must a Transformer Core Be Grounded at Only One Point? Isn't Multi-Point Grounding More Reliable?Why Does the Transformer Core Need to Be Grounded?During operation, the transformer core, along with the metal structures, parts, and components that fix the core and windings, are all situated in a strong electric field. Under the influence of this electric field, they acquire a relatively high potential with respect to ground. If the core is not grounded, a potential difference will exist between the core and the grounded clamping structures and tank, which may lead to intermittent discharge.I01/29/2026 -
Understanding Transformer Neutral GroundingI. What is a Neutral Point?In transformers and generators, the neutral point is a specific point in the winding where the absolute voltage between this point and each external terminal is equal. In the diagram below, pointOrepresents the neutral point.II. Why Does the Neutral Point Need Grounding?The electrical connection method between the neutral point and earth in a three-phase AC power system is called theneutral grounding method. This grounding method directly affects:The safety, reliabilit01/29/2026 -
What’s the Difference Between Rectifier Transformers and Power Transformers?What is a Rectifier Transformer?"Power conversion" is a general term encompassing rectification, inversion, and frequency conversion, with rectification being the most widely used among them. Rectifier equipment converts input AC power into DC output through rectification and filtering. A rectifier transformer serves as the power supply transformer for such rectifier equipment. In industrial applications, most DC power supplies are obtained by combining a rectifier transformer with rectifier equ01/29/2026
Related Solutions
-
Core Value and Innovative Applications of 12kV Medium Voltage Switchgear in Smart SubstationsWith the Rapid Development of Smart Grids and the Integration of Renewable Energy Medium Voltage (MV) Switchgear, as the core power distribution equipment in substations, directly determines the stability of the power system through its reliability, intelligence, and space efficiency. This article delves into the key technologies, scenario-specific solutions, and practical benefits of Medium Voltage Switchgear in substations.Core Requirements for Substation ScenariosHigh Reliability Requirements06/12/2025 -
Withdrawable 12kV Medium Voltage Switchgear: The Indispensable Pivot of Flexibility and Safety in Smart GridsAt the core of medium-voltage power distribution systems in industrial facilities, commercial complexes, and data centers, switchgear acts as a silent commander, governing the lifeline of electrical flow. Among various solutions, Withdrawable Switchgearhas become synonymous with reliability in modern MV systems due to its unique design philosophy. Compared to fixed switchgear, its "withdrawable" feature delivers compelling advantages, setting new benchmarks for operational efficiencyand per06/12/2025 -
Core Dilemma in Southeast Asia 12kV Medium Voltage SwitchgearSoutheast Asia’s rapidly growing power demand (GDP growth >5% annually) combined with extreme climatic conditions—high temperature, humidity, and salt spray corrosion—necessitates balancing lifecycle costs with climate resilience in switchgear selection. This article analyzes the optimal cost-performance solutions between GIS and AIS.I. GIS vs. AIS Cost Comparison Model (Southeast Asia Context)1. Initial Investment Costs2. Long-Term Operational CostsGIS Advantages:Ext06/12/2025
