LV Switchgear

GGD Fixed-Type Low-Voltage Switchgear

GGD fixed-type low-voltage switchgear distributes and controls power in industrial and commercial facilities. Its cabinet arrangement accommodates incoming supplies, outgoing feeders, lighting and motor-control circuits, providing a practical platform for installations that use fixed switching and protection equipment.

The series is designed for AC 380 V systems, with rated currents up to 3,150 A and short-circuit breaking ratings up to 50 kA. Cabinets form a lineup matched to the load schedule, with devices, busbars and cable entry specified for the distribution scheme.

Technical Specifications

Rated Operating Voltage	AC 380 V
Rated Frequency	50 Hz
Rated Current	up to 3150 A
Short-Circuit Breaking Current	up to 50 kA
Short-Time Withstand Current	15 / 30 / 50 kA (1 s)
Peak Withstand Current	30 / 63 / 105 kA
Standards	GB 7251 / IEC 439

Key Features

Rugged fixed-pattern construction.
High short-circuit withstand.
For distribution, lighting and motor control.
Economical and easy to maintain.

Typical Applications

Manufacturing plants
Mining-site distribution rooms
Power stations and substations

Installation & Aftercare

Prepare the site, plan routine checks and keep service records.

What needs to be ready before installation?

Install on a level indoor base with access to breakers and cable terminations, following the supplied front and rear access arrangement.
Reserve cable bending space and a removal route for the largest fixed device; include the enclosure in the earthing system.
Ventilate the switchroom and prevent water, conductive dust or condensation from reaching busbars and insulation.

What should operators check during routine rounds?

During rounds, review current readings and trip indications, and note abnormal noise, smell or external heating.

What is covered during planned maintenance?

At scheduled isolation, inspect terminals, busbar joints and insulation; qualified personnel clean dust and check device operation.
Investigate repeated trips and discoloured or damaged connections, and review protective-device settings after circuit alterations.

Customization Options

Define the electrical configuration and the details needed for your site.

Circuit lineup: Incoming and outgoing circuits, bus-section arrangement and spare distribution ways.
Busbars & fault duty: Operating voltage, busbar current, neutral arrangement and verified short-circuit duty.
Protection & controls: Breaker ratings and trip functions, motor-control circuits and auxiliary supply voltage.
Cabinet arrangement: Front or rear service access, cable-entry direction, section dimensions and enclosure protection.
Metering & indication: Meter quantities, current-transformer ratios, status indications and communication requirements.

Project-specific options and accessories are confirmed in the quotation and approved drawings.