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Customization 27kV 33kV 33.5kV 34.5kV 35kV Outdoor High - Voltage Vacuum Three-phase recloser/reclosure

  • Customization 27kV 33kV 33.5kV 34.5kV 35kV Outdoor High - Voltage Vacuum Three-phase recloser/reclosure

Key attributes

Brand ROCKWILL
Model NO. Customization 27kV 33kV 33.5kV 34.5kV 35kV Outdoor High - Voltage Vacuum Three-phase recloser/reclosure
Rated voltage 27kV
Rated normal current 1250A
Rated short circuit breaking current 25kA
Power frequency withstand voltage 70kV/min
Rated lightning impulse voltage 150kV
manual closing No
Mechanical lock No
Series RCW

Product descriptions from the supplier

Description

Description:

Pioneer in China’s recloser industry and the first source manufacturer dedicated to this field — this is our identity forged by decades of deep cultivation. Over the past decades, we have consolidated our development foundation through technological breakthroughs, led the industry direction by formulating standards, and successfully built a fully independent system covering core technology R&D, large-scale mass production and delivery.

The RCW series automatic circuit reclosers are designed for use in overhead distribution lines and distribution substations. They are compatible with power systems operating at 50/60Hz, covering voltage classes from 11kV to 38kV. With a rated current capacity of up to 1250A, these reclosers integrate multiple functions, including control, protection, measurement, communication, fault detection, and real - time monitoring of closing and opening operations. Composed of an integration terminal, current transformer, permanent magnetic actuator, and a dedicated recloser controller, the RCW series vacuum reclosers offer a comprehensive solution for power distribution network management.

Features:

  • Flexible Current Ratings: Optional ratings within the rated current range to suit diverse application needs.

  • Customizable Protection: A variety of optional relay protection and logic schemes for users to choose from, ensuring adaptability to different system requirements.

  • Versatile Communication: Optional communication protocols and I/O ports available, enabling seamless integration with various monitoring and control systems.

  • User - Friendly Software: Equipped with PC software that supports controller testing, setup, programming, and updates, simplifying operation and maintenance.

Parameters:

The voltage classes of some of these Automatic Reclosers include 6kV, 6.3kV, 6.6kV, 6.9kV, 7.2kV, 10kV, 10.5kV, 11kV, 11.5kV, 12kV, 13.2kV, 13.8kV, 14.5kV, 14.4kV, 15kV, 15.5kV, 15.6kV, 17.5kV, 20kV, 21.9kV, 22kV, 24kV, 30kV, 33kV, 33.5kV, 34.5kV, 35kV, 36kV, 38kV, 38.5kV, 40.5kV, 44kV, 45kV, 46kV, 66kV and 69kV. Rated Short-Circuit Breaking Current includes 8kA, 12.5kA, 16kA, 20kA, 25kA, 31.5kA and customization is available.

Item

Specification

Rated maximum voltage

27kV

Rated maximum current

1250A

Rated frequency

50Hz

Rated short circuit breaking current

12.5kA

Rated peak value withstand current

31.5kA

Rated 1min power frequency withstand voltage (Three-phase Silicone rubber pole (unable the gas))

70kV

Rated lightning impulse voltage (Three-phase Silicone rubber pole (unable the gas))

150kV

Operation sequence

C-0.5-CO-2-CO-5-CO (Magnetic actuator)

Mechanical life

n:30000 (Magnetic actuator)

Power supply and operating voltage

110/220V (Customized)

Ratio of current transformer

400/1A (Customized)

Number of voltage sensors (Three-phase Silicone rubber pole (unable the gas))

≤3

Opening time

≤30ms (Magnetic actuator)

Closing time

≤40ms (Magnetic actuator)

Minimum creepage distance

31, level4 (mm/kV)

Minimum distance between phases

380mm

Potential transformer

110/220V (Customized)

Cable length

6,8,12m (Customized)

Cable clamp (Three-phase Silicone rubber pole (unable the gas))

2-hole NEMA

Lightning arrester

≤6

Mounting type

Single / double column

With optional relay protection & logics for user choice

Instantaneous over-current protection

Timing over-current protection

Negative sequence over-current protection

Directional over-current protection(⁽¹⁾)

Over-voltage protection / Under voltage protection

Programmable protection relay curves (total 10 nos ANSI/IEC curves)

Cold load pickup protection TCC + Hot line tag

Earth protection E/F SEF + Zone- Sequence Co-ordination

More relay functions can be customized

With optional communication protocols & I/O port for user choice

RS-232 and RS-485 ports supporting

DNP3.0 communication protocol support

Modbus communication protocol is optional

IEC 60870-501 communication protocol support

IEC 60870-5-104 communication protocol support

The recloser can communicate through GPRS(or) GSM(or) GPRS/GSM module with English or Specified language

With optional functions for use

Rated currents, System phase current,

Rated voltages, System phase voltage and secondary low voltage power supply voltage Frequency

power (kWh), reactive power (kVarh), power factor

With optional reclosing interval for user pre-program

reclosing times setting support

Dead time setting support

With events recording function

SOE 10000 operations record

Fault record and normal operation record

Note:mean should customized by manufacturer if needed

External dimensions:

企业微信截图_17103058136732.png

Environmental requirement:

Maximum temperature:

+40°C

Minimum temperature:

-30°C

Monthly average humidity

95%

Humidity:

90%

Above sea level:

2500m or higher

Ambient air Not apparently polluted by corrosive and flammable gas, vapor


 What are the key points for the selection of outdoor vacuum reclosers?

  • System Parameter Matching: Choose a recloser that matches the rated voltage, rated current, and short-circuit current levels of the power system. Ensure that the rated voltage of the recloser is equal to or higher than the system voltage, the rated current meets the requirements of the line load current, and the rated short-circuit breaking and making currents are greater than the maximum possible short-circuit current in the system.

  • Reclosing Performance Requirements: Consider the specific requirements of the power system for the reclosing function, such as the number of reclosures, reclosing time intervals, and reclosing success rate. Based on different application scenarios and power supply reliability requirements, select a recloser with appropriate reclosing performance. For example, for critical power supply lines, a recloser with a higher number of reclosures and flexible reclosing time intervals may be required.

  • Type of Operating Mechanism: Choose an appropriate operating mechanism based on actual needs. Spring-operated mechanisms are suitable for outdoor environments where high reliability is required and maintenance conditions are relatively poor. Permanent magnet-operated mechanisms are better suited for applications requiring high action speed and frequent operations.

  • Environmental Adaptability: Given the harsh conditions of outdoor environments, consider the environmental adaptability of the recloser. This includes weather resistance, pollution resistance, and water and dustproof performance. Selecting a recloser with good environmental adaptability ensures stable performance during long-term outdoor operation.

  • Brand and Quality: Choose well-known brands and high-quality recloser products. These products have strict quality control systems in design, manufacturing, and testing, ensuring the performance and reliability of the product. Additionally, good after-sales service is an important factor to consider when choosing a brand, as it ensures timely resolution of issues that may arise during equipment operation.


Documentation Resource Library
Restricted
15kV/27kV/38kV outdoor auto break vacuum recloser brochure
Brochure
English
Consulting
Consulting
Restricted
10 to 38kV auto vacuum break recloser Catalog
Catalogue
English
Consulting
Consulting
Restricted
27kV automatic recloser technology specification
Technical Data Sheet
English
Consulting
Consulting
Restricted
Specification for 33kV Vacuum Automatic Recloser by Kenya Power and Lighting Company Limited (KPLC)
Other
English
Consulting
Consulting
FAQ
Q: What are the main technological alternatives for SF6 gas free circuit breakers?
A:

1. Environmentally friendly gas mixed insulation technology
CO ₂ and perfluoroketone/nitrile mixture gases: such as CO ₂/C ₅ - PFK (perfluoroketone) or CO ₂/C ₄ - PFN (perfluoronitrile) mixture gases. These mixed gases combine the arc extinguishing ability of CO ₂ and the high dielectric strength of perfluorinated ketones/nitriles, making them a substitute for SF ₆ in high-voltage applications. For example, CO ₂/C ₄ - PFN mixed gas has been commercially applied in high-voltage circuit breakers, with insulation and breaking performance close to SF ₆, and significantly reduced global warming potential (GWP).
Air and perfluoroketone mixed gas: In medium pressure applications, the mixture of air and C ₅ - PFK can be used as an insulation medium. By optimizing the mixing ratio and pressure, insulation performance comparable to SF ₆ can be achieved while reducing environmental impact.
2. Vacuum circuit breaker technology
Vacuum arc extinguishing chamber: Utilizing the high insulation strength and fast arc extinguishing ability in a vacuum environment, it replaces the arc extinguishing function of SF ₆. Vacuum circuit breakers are widely used in the medium and low voltage fields, especially in scenarios with high environmental requirements. Its advantages are no greenhouse gas emissions and excellent arc extinguishing performance, but it needs to solve problems such as vacuum sealing and contact materials.
Combination of vacuum circuit breaker and gas insulation: In some medium voltage switchgear, vacuum circuit breakers are used as breaking elements, combined with dry air or nitrogen as insulation media, to form environmentally friendly gas insulated switchgear (GIS) that balances insulation and arc extinguishing performance.

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Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 108000m²m² Total staff: 700+ Highest Annual Export(usD): 150000000
Workplace: 108000m²m²
Total staff: 700+
Highest Annual Export(usD): 150000000
Services
Business Type: Design/Manufacture/Sales
Main Categories: High Voltage Electrical Apparatus/Electric transformer
Whole life care manager
Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.
The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.

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