XGN Box-type Fixed Type High Voltage Switchgear

What Is This Equipment?

The XGN Box-type fixed type High voltage switchgear (XGN stands for “Box-type fixed type”) is a metal-enclosed, indoor high-voltage switchgear assembly. It is primarily used in three-phase AC power systems with rated voltages of 6kV, 10kV, 20kV, or 35kV, and a rated frequency of 50/60Hz.

What does it do?

This equipment is used for receiving and distributing electrical energy, as well as for controlling, protecting, and monitoring power lines and transformers. Unlike draw‑out type switchgear, the XGN Box-type fixed type High voltage switchgear uses fixed-mounted circuit breakers and disconnecting switches with visible isolation gaps, making it more rigid, cost‑effective, and easier to maintain in many medium‑scale industrial and commercial applications.

Model Code Breakdown:

XGN – Box-type Fixed type Indoor Metal‑enclosed

Box-type – Fully enclosed metal housing

Fixed type – Fixed installation of main switching components

Typical Applications:

Power distribution rooms in factories, residential complexes, shopping malls, hospitals, data centers, and renewable energy stations.

Product Description

The XGN Box-type fixed type High voltage switchgear is a standardized, economical, and highly reliable switchgear solution. Its core structure includes a fixed‑mount vacuum circuit breaker, a three‑position isolating switch, current transformers, voltage transformers, and a comprehensive interlocking mechanism. The enclosure is made of high‑quality cold‑rolled steel or stainless steel, coated with electrostatic powder for excellent corrosion resistance.

Key electrical parameters: rated voltage 12kV (24kV/40.5kV optional), rated current up to 3150A, short‑circuit withstand current up to 40kA. The switchgear complies fully with GB3906 and IEC62271‑200 standards.

Its compact design (typical width 800mm, depth 900mm, height 2200mm) saves valuable floor space. All high‑voltage compartments are fully enclosed and interlocked, ensuring safe operation. The front panel includes clear mimic diagrams, indication lamps, and emergency trip buttons.

The XGN Box-type fixed type High voltage switchgear is especially suitable for projects where simple operation, low upfront cost, and easy maintenance are prioritized over draw‑out configurability.

Product Parameter (Specification)

Product Feature and Application

Key Features

1. Fixed Type Simplicity – Lower Failure Rate

No complicated moving rail structures. The XGN Box-type fixed type High voltage switchgear uses bolted or direct‑contact connections, greatly reducing mechanical failure risks.

2. Visible Disconnect Contacts – Safe for Lockout/Tagout

The isolating switch provides clearly visible contact positions. Operators can visually confirm circuit separation before maintenance – a critical safety advantage over older oil‑type or mini‑type gear.

3. Compact and Space-Saving

Width as low as 600mm for 12kV versions. Ideal for retrofitting in limited-space substations.

4. Fully Interlocked – Prevents Misoperation

Mechanical and electrical interlocks between circuit breaker, isolating switch, and front cover comply with “five‑prevention” requirements.

5. Adaptable for Harsh Environments

Anti-condensation heaters and IP4X front enclosure ensure reliable operation in humid or dusty environments.

Application Areas

● Industrial plants – power supply for production lines

● Commercial complexes – main distribution room

● Data centers – backup power switching

● Wind/solar power stations – medium‑voltage collection

● Hospitals – dual power switching with fixed gear

Q&A

Q: What’s the difference between your XGN Box-type fixed type High voltage switchgear and a draw‑out type (like KYN)?

A: Great question. The XGN Box-type fixed type High voltage switchgear has fixed‑mounted circuit breakers. You cannot “roll out” the breaker, but you get a more rigid structure, lower upfront cost, and simpler maintenance. For applications where high‑availability redundancy is not critical (e.g., less than 500 operations per year), the fixed type is more economical and reliable.

the door.

Production Details

1. Enclosure Manufacturing

Cold‑rolled steel plate (≥2mm thick) or 304 stainless steel

Bending, welding, and surface treatment in house

Electrostatic powder coating (thickness ≥60μm, salt spray test ≥240h)

2. Core Components

Fixed‑mount vacuum circuit breaker (brand: Lugao / optional Siemens, ABB)

Three‑position isolating switch with visible break

Copper busbars (tinned or silver‑plated)

Current/voltage transformers (accuracy class 0.5 / 0.2S)

3. Internal Wiring

Wire numbers, terminal blocks, and plastic ducts clearly marked

Secondary wiring tested at 2kV for 1 minute

All wires flame‑retardant and rated 105°C

4. Factory Testing

Power frequency withstand voltage test

Main circuit resistance measurement

Mechanical operation test (≥200 times)

Interlock function verification

Partial discharge measurement (≤10pC)

XGN vs KYN Switchgear

Choosing between XGN Fixed Type Switchgear and KYN Withdrawable Switchgear depends on your project requirements, maintenance strategy, and budget. XGN switchgear is designed for applications that prioritize reliability, simple operation, and lower investment costs, while KYN switchgear is better suited for systems requiring frequent maintenance or high operational flexibility.

Certification and Quality Assurance

● IEC 62271‑200 compliant

● GB 3906 certified

● Internal arc fault tested (IAC A-FL) – optional

● ISO 9001:2015 factory management system

● Type test reports from national high‑voltage apparatus testing station (Xi’an / Beijing)

Our XGN switchgear is manufactured in a modern production facility equipped with CNC laser cutting machines, CNC bending centers, robotic welding systems, copper busbar processing lines, and comprehensive high-voltage testing laboratories. Your XGN Box-type fixed type High voltage switchgear will be shipped with a complete set of test reports, wiring diagrams, and operation manuals in both English and Chinese.

Advantages Compared to Competitors – Why Choose Lugao?

Packaging and Delivery

Packaging Standard

● Individual high‑strength plywood cases with moisture‑proof film

● Internal foam padding for components

● All outgoing terminals covered with insulating caps

● Busbar sections packed separately with labels

Shipping Marks

● Order number, destination, weight, “Fragile” and “No Stack” signs

Delivery Options

● FOB Ningbo / Shanghai

● Lead time: 15–25 days for standard configuration

After-Sales Service Commitment

● Warranty Period – 12 months from shipment date (extendable to 24 or 36 months under service contract)

● Technical Support – Lifetime free consultation; remote troubleshooting within 2 hours during business days

● Field Service – Installation guidance available; fault handling onsite as needed (free during warranty)

● Spare Parts Supply – Common parts stocked; next‑day courier delivery for urgent orders