• Product
  • Suppliers
  • Manufacturers
  • Solutions
  • Free tools
  • Knowledges
  • Experts
  • Communities
Search


Hybrid Gas Insulated Switchgear up to 145kV

  • Hybrid Gas Insulated Switchgear up to 145kV

Key attributes

Brand ROCKWILL
Model NO. Hybrid Gas Insulated Switchgear up to 145kV
Rated voltage 72.5kV
Rated normal current 2000A
Rated short circuit breaking current 31.5kA
Series RHP

Product descriptions from the supplier

Description

Product overview

The RHP type HGIS electrical apparatus is a new type of high-voltage power equipment. It retains the advantages of GIS combined electrical apparatus, such as compactness, high reliability, and low operation and maintenance requirements, while innovatively retaining the busbar as a conventional AIS arrangement for on-site installation and connection. This design effectively overcomes the drawbacks associated with traditional AIS equipment, including large footprint, numerous connection points, and high inspection and maintenance workloads.

It is suitable for 40.5kV up to145kV and below transmission and distribution systems in power plants, substations, railway stations, ports, and large industrial and mining enterprises. It is particularly well-suited for space-constrained projects such as mountainous substations and urban substations, and can be installed indoors, outdoors, or on rooftops.

Product Component

Hybrid Gas Insulated Switchgear up to 145kV Component

Mian features

  • Genuine Solution to Operational Reliability Challenges in Disconnector/Earthing Switches;

  • Advanced Self-Blast Interruption and Modular Structure for Enhanced Reliability;

  • The elimination or significant reduction of disc-type insulators for enhanced reliability;

  • The application of specialized manufacturing techniques reduces the number of flanges, thereby minimizing the potential for gas leakage;

  • Externally Mounted CT for enhanced safety and reliability;

  • Compact Structure and Flexible Layout;

  • Relatively more economical than AIS.

Technical Parameters

RHP-40.5

N

Item

Unit

Parameters

1

Rated maximum voltage

kV

40.5

2

Rated maximum current

A

≤2000

3

Rated frequency

Hz

50/60

4

First opening pole coefficient

 

1.5

5

Rated short circuit breaking current

kA

31.5

6

Rated short-circuit duration

s

4

7

Rated out of step breaking current

kA

7.9

8

Rated peak value withstand current

kA

80

9

Rated 1min power frequency withstand voltage (Dry/Wet)

kV

To ground 110

Break 118

10

Rated lightning impulse voltage

kV

To ground 215

Break 215

11

Operation sequence

 

O-0.3s-CO-180s-CO

12

Opening time

ms

50±10

13

Closing time

ms

90±20

14

Close-open time

ms

≤100

15

Main circuit resistance

μΩ

≤150

16

Rated SF6 gas pressure (20℃gauge pressure)

Mpa

0.5

17

Alarm/blocking pressure(20℃gauge pressure)

Mpa

0.45/0.4

18

SF6 annual gas leakage rate

%

≤0.5

19

Gas moisture content

Ppm(v)

≤150

20

Mechanical life

times

6000

RHP-72.5

N

Item

Unit

Parameters

1

Rated maximum voltage

kV

72.5

2

Rated maximum current

A

≤3150

3

Rated frequency

Hz

50/60

4

First opening pole coefficient

 

1.5

5

Rated short circuit breaking current

kA

40

6

Rated short-circuit duration

s

4

7

Rated out of step breaking current

kA

10

8

Rated peak value withstand current

kA

100

9

Rated 1min power frequency withstand voltage (Dry/Wet)

kV

To ground 275

Break 315

10

Rated lightning impulse voltage

kV

To ground 650

Break 750

11

Operation sequence

 

O-0.3s-CO-180s-CO

12

Opening time

ms

32±7

13

Closing time

ms

85±10

14

Close-open time

ms

≤60

15

Main circuit resistance

μΩ

≤100

16

Rated SF6 gas pressure (20℃gauge pressure)

Mpa

0.5

17

Alarm/blocking pressure(20℃gauge pressure)

Mpa

0.55/0.5

18

SF6 annual gas leakage rate

%

≤0.5

19

Gas moisture content

Ppm(v)

≤150

20

Mechanical life

times

6000

RHP-145

N

Item

Unit

Parameters

1

Rated maximum voltage

kV

145

2

Rated maximum current

A

≤3150

3

Rated frequency

Hz

50/60

4

First opening pole coefficient

 

1.5

5

Rated short circuit breaking current

kA

40

6

Rated short-circuit duration

s

4

7

Rated out of step breaking current

kA

10

8

Rated peak value withstand current

kA

100

9

Rated 1min power frequency withstand voltage (Dry/Wet)

kV

To ground 275

Break 315

10

Rated lightning impulse voltage

kV

To ground 650

Break 750

11

Operation sequence

 

O-0.3s-CO-180s-CO

12

Opening time

ms

32±7

13

Closing time

ms

85±10

14

Close-open time

ms

≤60

15

Main circuit resistance

μΩ

≤100

16

Rated SF6 gas pressure (20℃gauge pressure)

Mpa

0.5

17

Alarm/blocking pressure(20℃gauge pressure)

Mpa

0.55/0.5

18

SF6 annual gas leakage rate

%

≤0.5

19

Gas moisture content

Ppm(v)

≤150

20

Mechanical life

times

6000

Dimension

40.5kV

40.5kV HGIS Dimension

72.5kV

72.5kV HGIS Dimension

145kV

145kV HGIS Dimension

Documentation Resource Library
Restricted
RHP type Hybrid Gas Insulated Switchgear catalogue
Catalogue
English
Consulting
Consulting
FAQ
Q: What is the core upgrade of digital RHP type HGIS compared to traditional switchgear?
A:
  1. Full digitalization: Information collection, transmission, and processing are all digital, with fiber optic cables replacing cables;
  2. High compatibility: Following the IEC 61850 standard, devices are interconnected and interoperable;
  3. Easy to expand: New features do not require modification of existing devices, only need to be connected to the network.
Q: What is the voltage range and applicable scenarios of RHP type HGIS?
A:

The voltage covers 40.5kV-145kV and is suitable for scenarios such as power plants, substations, railways, ports, etc. It is particularly suitable for space limited projects such as urban/mountainous substations, renovation of old stations, and rooftop/mobile substations.

Q: What are the core advantages of RHP type HGIS compared to traditional GIS and AIS?
A:
  1.  Land saving: 40% -60% footprint savings compared to AIS;
  2. Cost advantage: 30% lower than GIS investment and 45% -50% lower than total investment;
  3. Less maintenance: 25 years maintenance free, mechanical lifespan of 6000 times;
  4. Environmental Protection: SF6 usage is only 20% of GIS, with an annual leakage rate of ≤ 0.5%.
Know your supplier
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.

Related Products

Related Knowledges

  • HECI GCB for Generators – Fast SF6 Circuit Breaker
    1.Definition and Function1.1 Role of the Generator Circuit BreakerThe Generator Circuit Breaker (GCB) is a controllable disconnect point located between the generator and the step-up transformer, serving as an interface between the generator and the power grid. Its primary functions include isolating generator-side faults and enabling operational control during generator synchronization and grid connection. The operating principle of a GCB is not significantly different from that of a standard c
    01/06/2026
  • Distribution Equipment Transformer Testing, Inspection, and Maintenance
    1.Transformer Maintenance and Inspection Open the low-voltage (LV) circuit breaker of the transformer under maintenance, remove the control power fuse, and hang a “Do Not Close” warning sign on the switch handle. Open the high-voltage (HV) circuit breaker of the transformer under maintenance, close the grounding switch, fully discharge the transformer, lock the HV switchgear, and hang a “Do Not Close” warning sign on the switch handle. For dry-type transformer maintenance: first clean the porcel
    12/25/2025
  • How to Test Insulation Resistance of Distribution Transformers
    In practical work, insulation resistance of distribution transformers is generally measured twice: the insulation resistance between thehigh-voltage (HV) windingand thelow-voltage (LV) winding plus the transformer tank, and the insulation resistance between theLV windingand theHV winding plus the transformer tank.If both measurements yield acceptable values, it indicates that the insulation among the HV winding, LV winding, and transformer tank is qualified. If either measurement fails, pairwise
    12/25/2025
  • Design Principles for Pole-Mounted Distribution Transformers
    Design Principles for Pole-Mounted Distribution Transformers(1) Location and Layout PrinciplesPole-mounted transformer platforms should be located near the load center or close to critical loads, following the principle of “small capacity, multiple locations” to facilitate equipment replacement and maintenance. For residential power supply, three-phase transformers may be installed nearby based on current demand and future growth projections.(2) Capacity Selection for Three-Phase Pole-Mounted Tr
    12/25/2025
  • Transformer Noise Control Solutions for Different Installations
    1.Noise Mitigation for Ground-Level Independent Transformer RoomsMitigation Strategy:First, conduct a power-off inspection and maintenance of the transformer, including replacing aged insulating oil, checking and tightening all fasteners, and cleaning dust from the unit.Second, reinforce the transformer foundation or install vibration isolation devices—such as rubber pads or spring isolators—selected based on the severity of vibration.Finally, strengthen sound insulation at weak points of the ro
    12/25/2025
  • Risk Identification and Control Measures for Distribution Transformer Replacement Work
    1.Electric Shock Risk Prevention and ControlAccording to typical design standards for distribution network upgrades, the distance between the transformer’s drop-out fuse and the high-voltage terminal is 1.5 meters. If a crane is used for replacement, it is often impossible to maintain the required minimum safety clearance of 2 meters between the crane boom, lifting gear, slings, wire ropes, and the 10 kV live parts, posing a severe risk of electric shock.Control Measures:Measure 1:De-energize th
    12/25/2025

Related Solutions

  • Intelligent Operation Solution for 12kV Vacuum Circuit Breakers: Integrating Real-time Monitoring & Lifetime Optimization
    Ⅰ. Equipment Operation & MaintenanceIntelligent Monitoring System Integration​Multi-parameter Real-time Monitoring: Embedded sensors (temperature, displacement, Hall effect current sensors) track contact temperature rise, mechanical characteristics (opening/closing speed, overtravel), coil current, and partial discharge signals. Data undergoes preprocessing via edge computing prior to cloud upload.​Lifetime Prediction Model: Dynamically evaluates remaining lifespan using electrical wear data
    06/10/2025
  • SF6 Circuit Breaker Solutions for Outdoor Installation (Anti-Pollution & Seismic Resistance)
    I.Core Challenges in Outdoor Installation​In high-voltage transmission and distribution systems, SF6 circuit breakers are exposed to complex outdoor environments for extended periods, facing the following critical issues:​Pollution & Insulation Degradation​Dust, salt fog, and industrial pollutants in outdoor environments easily adhere to equipment surfaces. In coastal or industrial areas, pollution levels may reach ​Class IV, resulting in insufficient creepage distance and triggering ​flasho
    05/12/2025
  • 12kV Indoor Vacuum Circuit Breaker Southeast Asia Solution: Anti-Corrosion Compact Design
    12kV Indoor Vacuum Circuit Breaker Southeast Asia Solution: Anti-Corrosion Compact DesignⅠ. Executive Summary​Southeast Asia faces rapidly growing electricity demand alongside environmental challenges including high temperatures, humidity, salt spray corrosion, and grid instability. This solution recommends ​Solid Insulated Pole-Mounted Vacuum Circuit Breakers (VCB)​​ featuring ​high reliability, ​compact design, and ​smart monitoring. Tailored for tropical climates and industrial scenarios, it
    06/10/2025
Haven't found the right supplier yet? Let matching verified suppliers find you. Get Quotation Now
Haven't found the right supplier yet? Let matching verified suppliers find you.
Get Quotation Now
Send inquiry
Download
Get the IEE Business Application
Use the IEE-Business app to find equipment, obtain solutions, connect with experts, and participate in industry collaboration anytime, anywhere—fully supporting the development of your power projects and business.