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HJD · Manufacturing capabilities
Power distribution
equipment manufacturing
We manufacture power distribution equipment for distributors, contractors and project buyers. Our work includes cabinet fabrication, switchgear assembly and power transformer production. Send us your specifications to review the configuration for your project.
Structural fabrication · Equipment assembly · Product-specific requirements
Production workshop
What we manufacture
Our product range
We manufacture the five product categories below. The model, configuration and project requirements determine the production process.
Switchgear
Medium- and high-voltage equipment and low-voltage assemblies.
Power transformers
Oil-immersed and dry-type transformers.
Drop-out fuses
Distribution protection equipment and project configurations.
Vacuum circuit breakers
Switching equipment and compatible operating arrangements.
Disconnectors & earthing switches
Isolation and earthing equipment for the specified application.
The sections below cover switchgear fabrication and assembly, followed by power transformer production.
01 / Structural fabrication
Cabinet fabrication
and assembly interfaces
Cabinet dimensions, mounting points and access requirements affect how the equipment fits together. Include these details in the technical review before assembly.
01
Cabinet & structural components
Confirm the dimensions, layout, access and mounting requirements for your equipment.
02
Component interfaces
Define where the busbars, switching devices and secondary equipment fit and connect.
03
Drawings for fabrication
Resolve project details in the drawings and configuration before fabrication.
02 / Switchgear assembly
Switchgear
assembly stages
Assembly varies with the enclosure, operating mechanism and other components specified for the equipment.
01 / Structure
Enclosures & interfaces
Gas-box preparation, bushings and sealing components, where required by the design.
02 / Primary assembly
Switching & busbars
Switch or breaker assemblies, operating mechanisms, main busbars and branch connections.
03 / Integration
Interlocks & secondary equipment
Door interlocks, instrument transformers and secondary components as specified.
04 / Verification
Operation & checks
Checks of the operating mechanism, opening and closing linkages, and interlocks required for the product.
These stages group related assembly tasks. The exact work instructions, sequence and checks depend on the product and configuration.
03 / Transformer production
Power transformer
production
Oil-immersed and dry-type transformers each need a configuration and production review. Instrument transformers have separate production processes.
Production equipment & assembly
To agree the production configuration, review the transformer type and ratings, installation conditions and interfaces.
Product-specific requirements
Include the winding configuration, connections, dimensions and required documents in the technical review.
Confirm the configuration, production scope and inspection requirements for the transformer you are ordering.
Technical review & customization
Technical review
before production
Send the information below for a technical review. The configuration, drawings and any changes need to be agreed for the equipment in your order.
What to send us
- Equipment type, model and required ratings
- Single-line diagrams or technical specifications
- Dimensions, installation interfaces and site conditions
- Quantity, project schedule and destination
What to agree during the review
- Applicable product and configuration
- Drawings and interfaces requiring confirmation
- Inspection criteria and document requirements
- Production and delivery scope to be agreed
Changes can affect the configuration, inspection requirements or schedule. Raise them before the drawings and production details are confirmed.
01
Technical scope
Define the equipment and project requirements.
02
Configuration review
Agree the drawings and configuration requirements.
03
Production planning
Agree the production scope and project milestones.
04
Inspection & handover
Agree acceptance requirements and delivery documents.
Project enquiry
Share your
equipment specifications
Tell us the equipment type, configuration, quantity and project location. Attach any drawings or specifications to your email so we can review the requirements.
Email your project requirements
Include the product, quantity, project location and technical requirements.
Attach drawings or specifications to your email.