35kv Indoor Use Gas Insulated Circuit Switchgear with Smart Protection and Custom Options

Customization: Available
Type: Power
Structure: Protection

Product Description

35kV Indoor Use Gas Insulated Circuit Switchgear
Technical Specifications
Model NO.
GIS-40.5
Certification
ISO9001:2000, CCC, ISO15001
Operation Voltage
High Voltage (35kV)
Material
Stainless Steel
Protection Grade
IP56 (Shell)
Application
Power Plants, Substations
Warranty
12~24 Months
MOQ
1 Set
Product Overview
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Reliable Protection: Introducing our state-of-the-art 35kV/1250A indoor high-voltage switchgear. This SF6 gas-insulated system is crafted for ultimate reliability and efficiency, encased in robust metal.
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Versatile Application: Ideal for three-phase AC 50Hz single busbar systems in power plants, substations, high-rise buildings, subways, wind energy, and photovoltaic setups. Engineered for high-altitude, humid, and coastal environments.
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Standard Compliance: Adheres to GB/T 11022-1999, GB 3906-200X (3.6kV-40.5kV AC metal-enclosed switchgear), and GB/T 404-1997.
Key Parameters (35kV/1250A Switchgear)
No. Project Unit Parameter
1Rated voltagekV40.5
2Rated frequencyHz50
3Rated currentA1250
41-min power frequency withstandkV95 (Phase-to-ground)
5Lightning impulse withstandkV185 (Peak)
6Rated short-circuit breaking currentkA25 / 31.5
7Rated dynamic stability currentkA63 / 80
Internal Structure & Dimensions
Circuit Breaker Cabinet Outline
Structure Overview
Dimensions (W*D*H)
600(800) * 1600 * 2400 mm
Total Weight
1200 kg
  • 1 Cable room & Connection
  • 5 Inflation unit (Stainless steel)
  • 6 Vacuum circuit breaker (ZN-40.5)
  • 9 Secondary control room
  • 12 Pressure relief port
Busbar Expansion Systems
Side Expansion Busbar Top Expansion Busbar

Horizontal and branch busbars are crafted from robust rounded copper bars. The system remains unaffected by dust and condensation, simplifying installation without SF6 gas operation in the assembly field.

Advanced Monitoring & Sensors
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Sensor System: Includes live display sensors, circuit breaker position sensors, and spring energy storage sensors. The SF6 gas pressure is continuously monitored by a gauge with temperature compensation.
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Safety Measures: In the event of an internal arc fault, an independent explosion-proof membrane device promptly releases high-pressure gas through a dedicated channel at the rear.
Product Views & Installation
Cable Connection Plug
Front View 1 Front View 2 Side View
Installation View 1 Installation View 2
Frequently Asked Questions
What are the primary applications for this 35kV switchgear?
It is designed for power plants, substations, high-rise buildings, and industrial mining. It is particularly effective in subways, wind energy projects, and coastal or high-altitude environments.
How does the gas insulation system enhance safety?
The sealed box is filled with dry SF6 gas, making the internal components completely unaffected by the external environment. It includes a pressure relief port and a real-time monitoring gauge for extreme safety.
What is the mechanical life of the circuit breaker?
The vacuum circuit breaker is designed for a mechanical life of 10,000 operations, while the three-position switch is rated for 3,000 operations, ensuring long-term durability.
Is the equipment customizable for special environments?
Yes, bespoke solutions can be developed for scenarios stretching beyond typical environmental conditions, such as extreme permafrost or specific industrial requirements.
What protection level does the enclosure provide?
The sealed box body provides an IP67 rating, while the overall switchgear enclosure meets IP4X standards, offering top-tier protection against dust and moisture.
Does it support smart monitoring?
Yes, the system incorporates an intelligent control and protection unit that displays real-time data like voltage, current, and fault signals on a clear LCD screen.

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