Network and operating requirements
Before design, we define operating voltage, rated current, short-circuit withstand, panel arrangement, environment and operating method. Protection and control interfaces are addressed explicitly.
Offered technologies / EMKO PROJECT
MV switchboard manufacture and supply
For medium-voltage distribution, we offer engineering, assembly manufacture and coordinated switchgear supply, including protection, metering and control circuits. The assembly system, devices and tests are selected for the voltage level and the application.
Operating context
The whole application matters.
MV switchgear depends on voltage, fault levels, operating arrangement and protection requirements. Supply preparation selects the panel system, switching equipment, measurement and control interfaces.
Scope of the solution
- Incoming, outgoing and metering panels and their interfaces with transformers and supervisory control.
- Switching and earthing functions, interlocks, protection and indication.
- Auxiliary supply, cable terminations, earthing and building interfaces.
- Coordination of system manufacturer documentation, protection functions and acceptance tests.
- Coordination of protection settings and testing with the connected network.
- Verification of status signals, trip circuits and automatic supply transfer within scope.
Engineering priorities
From operating need to design.
Assembly and interfaces
The manufacturing scope, system components and testing are defined for the selected design. Technical coordination includes cables, terminations, layout and operational interlocks.
Acceptance and documentation
Handover can include inspection of the assembly, main and auxiliary circuits, earthing, identification and interlocks, with the relevant test records. Factory testing and checks after installation are specified separately.
Protection and supply transfer
Switchgear interfaces include protection settings, instrument transformers and trip circuits. Automatic supply transfer requires defined permitted states and test scenarios; specialist competence and testing are matched to the project.
Before engineering
Inputs that matter.
- Single-line diagram, voltage level and network data.
- Protection, communication, operating and emergency requirements.
- Building interfaces, handling access and environmental conditions.
- Single-line diagram, protection study, settings and network operating rules.
Agreed with the proposal
Outputs and acceptance.
- Data sheets, assembly drawings and main and auxiliary circuit diagrams.
- Agreed test reports, protection-setting information and manuals.
- Protection-setting and functional-test records, including control-system interfaces.
The actual scope and acceptance criteria depend on the application and contract.
From technical proposal preparation
Concrete configurations and supply scopes.
These examples describe proposed solutions and enquiry requirements. Their parameters belong to the stated project stage; completed supplies are shown separately in the project portfolio.
RFQ scope – proposed supply
Project 0518 · 2023 · Chile
Three MV switchboards for a technical facility
Specification parameter36 kV voltage class; 23 kV operating voltage; 50 Hz.
Specification parameter630 A rated busbar current.
Specification parameterSpecified short-time withstand: 16 kA / 3 s; internal arc: 16 kA / 1 s.
Specification parameter48 V DC auxiliary control and protection circuits.
Requirement
An RFQ for medium-voltage distribution with incoming and outgoing panels, metering, protection and auxiliary circuits.
Proposed solution
The specification covered three switchboard assemblies, their cable terminations, earthing, operation and supervisory-control interfaces. Environmental conditions and mechanical loading required specific assessment.
Proposed scope
- Three switchboard assemblies; drawings, data sheets, testing and operating documentation to the specification.
Proposed scope based on the 2023 RFQ; this is not presented as a completed supply.
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A clear brief.
A practical next step.
Send your drawings, operating parameters or a short description of the change you need. We will review the technical interfaces and propose the next steps towards a quotation, clarifying any missing information with you.
Discuss your requirements ↗Prepare a technical brief →+420 731 771 147info@emkoproject.cz