• DS27 252kV 363kV 800kV 1100kV High voltage disconnect switch
DS27 252kV 363kV 800kV 1100kV High voltage disconnect switch
discuss personally
Model
DS27-1100/6300-63
DS27-800/5000-63
DS27-363/5000-63
DS27-363/3150-50
DS27-252/5000-50
DS27-252/3150A-50
Basic info
Brand ROCKWILL
Model NO. DS27 252kV 363kV 800kV 1100kV High voltage disconnect switch
Rated voltage 800kV
Rated normal current 5000A
Series DS27
Product Detail

Description:

DS27 series disconnector adopts three or five column horizontal rotation structure, can be equipped with ground switch. 252kV disconnector adopts CJ11 electric mechanism three-phase mechanical linkage operation. 363kV, 800kV, 1100kV disconnector adopts CJ11 electric mechanism single-pole operation, and can achieve three-pole electrical linkage.


Main Features:

  •  Simple structure, compact, small footprint.

  • Strong product flow capacity, long mechanical life.

  • The main knife adopts flipping structure and has self-cleaning ability.

  • Seismic level reached AG5 level.

  • The layout is flexible, convenient for users to choose.

Technical parameter:

image.png

What is the definition of a disconnect?

Definition:

An isolator switch is a type of switching device primarily used to isolate the power supply to ensure safe maintenance. It can reliably isolate electrical equipment from the power source when there is no current or only a very small current (such as capacitive current), ensuring that no unexpected current flows through the equipment during operations such as inspection, maintenance, and testing, thereby safeguarding the safety of personnel and equipment.

 

Know your supplier
ROCKWILL
Rockwill Electric Group Global Manufacturer of High voltage and medium-voltage power equipment and smart grid solutions. Headquartered in Wenzhou, China. Serving 100+ countries with quality, innovation, and trust. What We Offer: • HV-MV switchgear (VCB, SF₆ circuit breakers, RMU, GIS) • Distribution transformers and substations • Smart grid and monitoring systems • Solar, wind, EV charging, and energy storage solutions • EPC turnkey power projects Certified: ISO 9001 / ISO 14001 / ISO 45001
Main Categories
High voltage
Business Type
Design/Manufacture/Sales
Highest Annual Export (USD)
$150,000,000
Professional Experience
16 years
Workplace
108000m²m²
占位
占位
Related Products
Related Knowledges
Comparative Analysis of 500 kV Prefabricated Substations vs. Conventional Substations
Comparative Analysis of 500 kV Prefabricated Substations vs. Conventional Substations
The secondary equipment area of conventional substations uses reinforced concrete or prefabricated steel structures, facing issues like long construction cycles, unreasonable functional zone design, strict environmental assessments, dust, noise, and disturbances. Primary and secondary equipment can only be installed after civil works and decoration, lowering construction efficiency.Prefabricated cabin substations integrate modularity, intelligence, and cost - effectiveness, boasting green, energ
Dyson
06/13/2025
Operational Analysis of Prefabricated Enclosure Substations in Extreme Cold Climate Applications
Operational Analysis of Prefabricated Enclosure Substations in Extreme Cold Climate Applications
Under global climate diversity, alpine power construction faces technical and environmental challenges. Extreme climates, complex geology, and long - term low winter temperatures, along with ice, snow, and storms, strain electrical equipment stability and power facility construction (schedule, cost, maintenance). Traditional on - site substations, with long construction and poor adaptability, can’t meet alpine regions’ fast, stable power needs.Prefabricated cabin substations, as modu
Echo
06/13/2025
Implementation of Precast Foundations for Ring-Main Unit Compact Substations in Grid Modernization Initiatives
Implementation of Precast Foundations for Ring-Main Unit Compact Substations in Grid Modernization Initiatives
Compact substation boxes, with advantages like safe operation, high reliability, and easy maintenance, are used in urban grid construction/renovation. Structurally divided into American - style (high - cost, noisy, low - efficiency, gradually phased out) and European - style (large - sized but more advantages, still popular).To address their pros/cons, ring - network prefabricated ones were developed.I. Basic Materials for Prefabricated Compact Substation BoxesMaterials need hardness, strength,
Echo
06/13/2025
The design of the three-purpose grounding transformer
The design of the three-purpose grounding transformer
Underground Power Cable Transmission LinesDirect - buried power cable lines have large ground - distributed capacitance, causing high single - phase - to - ground short - circuit capacitive current. For 10 kV lines, if this current exceeds 10 A, arcs hardly self - extinguish, risking arc overvoltage and endangering line equipment. Arc extinction is thus necessary. With a Dyn - connected main transformer, an arc - suppression coil on the secondary neutral point suffices. For Yd - connected ones,
Dyson
06/12/2025
Failure Analysis and Design Optimization of Conventional Grounding Transformers
Failure Analysis and Design Optimization of Conventional Grounding Transformers
I. Core Cause of Damage: Electrodynamic Impact (Complying with GB/T 1094.5 / IEC 60076-5)The direct cause of high-voltage winding end collapse is the instantaneous electrodynamic impact induced by short-circuit current. When a single-phase grounding fault occurs in the system (such as lightning overvoltage, insulation breakdown, etc.), the grounding transformer, as the fault current path, withstands high-amplitude and steep-rise-rate short-circuit currents. According to Ampère's force law
Felix Spark
06/12/2025
Analysis of Grounding Transformer Operational Behavior Under System Single-Phase-to-Ground Fault Conditions
Analysis of Grounding Transformer Operational Behavior Under System Single-Phase-to-Ground Fault Conditions
1 Theoretical AnalysisIn distribution networks, grounding transformers serve two key roles: powering low - voltage loads and connecting arc - suppression coils at neutrals for grounding protection. Grounding faults, the most common distribution network fault, heavily impact transformers’ operating characteristics, causing sharp changes in electromagnetic parameters and status.To study transformers’ dynamic behaviors under single - phase grounding faults, build this model: Assume a tr
Felix Spark
06/12/2025
×
Inquiry
Download
Experts Electrical is dedicated to serving the personnel in the global power industry.
Join Experts Electrical, not only can you discover power equipment and power knowledge, but also canhnd like - minded friends!
商品视频播放