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15.5kV 24kV 27kV 30kV outdoor Single-phase Automatic vacuum Recloser Source Manufacturer

  • 15.5kV 24kV 27kV 30kV outdoor Single-phase Automatic vacuum Recloser Source Manufacturer
Key attributes
Brand ROCKWILL
Model NO. 15.5kV 24kV 27kV 30kV outdoor Single-phase Automatic vacuum Recloser Source Manufacturer
Rated frequency 50/60Hz
Rated line charging current 10A
Ingress Protection (IP) IP66
Series RWDRC
Product descriptions from the supplier
Description

Description :

As the pioneer and first professional OEM in China’s recloser industry, we’ve built robust R&D and manufacturing capabilities over decades, and set the industry original standards with groundbreaking achievements.We’ve established a fully independent ecosystem spanning core R&D, mass production and delivery, delivering reliable, high-performance and sustainable solutions for power grid construction.

The RWDRC series of single-phase reclosers are designed in accordance with IEC 62291-111-2019 (IEEE C37.60-2018). They are distribution network solution products that integrate multiple technologies such as current protection, communication, and self-power supply from line current.In terms of fault positioning, the device uses a variety of advanced technical means, such as traveling wave ranging and impedance method.

When a cable fault occurs, these technologies can quickly and accurately determine the location of the fault point with a very small margin of error. This greatly shortens the time for fault troubleshooting and repair, reducing the power - outage time and its impact on users.

This product is suitable for the protection of branch lines of overhead lines in the distribution network or the protection of user boundaries. When a permanent fault occurs on the line, it can quickly cut off the fault to prevent the fault from spreading to the main line. When a temporary fault occurs on the line, the line power supply can be restored through multiple reclosing operations, reducing the power outage time and improving the reliability of power supply.

Feature

  • Automatic Fault Isolation

  • Automatic Service Restoration

  • Fault Detection and Protection

  • Sectionalizing Protection

  • High Reliability and Durability

  • Environmentally Friendly

Main function introduction:

  • Fault Detection and Isolation

  • Reclosing Function

  • Multiple Reclosing Control

  • Protection Coordination Function

Technology 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.

Rated voltage

27 kV

15.5 kV

Rated frequency

 50 Hz / 60 Hz

Neutral point grounding mode

effectively grounded

Power frequency withstand voltage

60kV (dry form, 1 min) 60kV (wet, 10s)

50kV (dry form, 1 min) 50kV (wet, 10s)

Lightning impact withstand voltage

150 kV

110 kV

Rated current

40/100/200A

Rated short circuit open break current

6.3 Thousand Ann

Short circuit break time

68 Times

Rated short-time withstand current (peak value)

16.4kA (100A / 200A) 10.4kA (40A)

Rated short circuit current (peak)

16.4kA (100A / 200A) 10.4kA (40A)

Duration of short-circuit

1s (Model 100A and 200A) 0.5 seconds (Model 40A)

Rated line charging current

10A

Rated cable charging current

25A

Rated operation order

O1-CO-t2-CO-t2-CO t1 = 0.5s 30s and t2 = 1s 30s(adjustable)

Maximum reset time

180 Seconds

Minimum trip current

Any current above this value and less than 6.3 kA is programmable

Self-supply minimum line current

1.5A (for type 40A and 100A);2A (for type 200A)

Mechanical life

10000 Times

2000 Times

IP grade (recenter)

IP66

Main circuit resistance

4200 μΩ(for type 40A);200 μΩ(for type 100A);700 μΩ(for type 200A)

1.1 Ur local discharge

The 20 pieces

weight

12 Kg

Estimated product life (including spare parts)

20 years (switch part);0 years (control unit);0 battery

Vacuum arc-extinguishing chamber parameters

Project

Rating

Rated voltage

27 kV / 15.5 kV

Rated current

200A (covering 40A / 100A)

Rated short-circuit breaking capacity

6.3 Thousand Ann

Magnetic force actuator parameters

Project

Rated value (RYDRC-29)

Rated value (RYDRC-15.5)

Rated voltage

DC 300V

DC 300V

The contact opens the distance

At 12 ±1mm

9 ±1mm

excess of stroke

4 ±1mm

And 2.5 ±0.5mm

Average closure velocity (0-6mm)

11-17 m/s

0.8 ±0.2 m/s

Average opening speed (0-6mm)

0.8 ±0.2 m/s

1.3 ±0.3 m/s

Terminal time

For 20 to 40 ms

For 20 to 40 ms

Business hours

8-13 milliseconds

8-13 milliseconds

Contact-closed bounce time

Admidia 5 ms

Admidia 5 ms

Current sensor parameters

Project

Type 40A number

Type 100A number

Type 200A No

Ratio

100A/1V

100A/1V

200A/1V

Accuracy class

5P20

5P20

5P10

Load resistance

2kΩ

2kΩ

2kΩ

Structure diagram

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Device structure:

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Installation schematic diagram

image.png

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Q:What is a recloser used for?

A:A recloser is an electrical device used in power distribution systems. It is primarily used to automatically reconnect an electrical circuit after a fault has been detected and cleared. This helps to minimize power outages and improve the reliability of the power supply by quickly restoring electricity to the affected area.

Q: What is the difference between a breaker and a recloser?

A:A breaker is a device that can open and close a circuit under normal and fault conditions to protect the system from overloads and short - circuits. A recloser, however, is designed to automatically close the circuit a few times after a fault, in the hope that the fault was temporary, reducing outage time.

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Chen/CEO