Direct answer: Select an RMU by matching the network voltage, continuous current, short-circuit duty, functional units, protection philosophy, cable interfaces, installation environment and required project documents. The SLD and specification should control the final configuration.
1. Define the Electrical System
Confirm nominal voltage, highest system voltage, frequency, earthing arrangement, rated current, short-time withstand current, duration and peak withstand duty.
2. Select Functional Units
Map each feeder to cable switch, vacuum circuit breaker, switch-fuse, PT, metering or bus-section functions. Confirm normal-open points and interlocks.
3. Check Site Conditions
Review indoor or outdoor installation, temperature, altitude, humidity, pollution, corrosion, seismic requirement, room size, cable trench and operating aisle.
4. Confirm Protection and Control
Define CTs, VTs, relays, trip supply, indication, motor operation, remote control, SCADA signals and auxiliary voltage.
5. Approve Documents and Testing
Review GA drawings, SLD, component schedule, datasheets, inspection plan, routine tests, FAT scope, packing and shipping marks.
Qiangchi Engineering Support
Qiangchi manufactures medium-voltage distribution equipment and supports project-specific configuration review, GA drawings, typical SLD coordination, technical clarification, inspection, FAT planning and export packing. Confirmed product options include the QCL-12 RMU, QCL-24 GIS, QCL-40.5 GIS, XGN15 AIS RMU and YB compact substation. Final values and dimensions are project-specific.
Frequently Asked Questions
What should I send for a quotation?
Send the SLD, BOQ, system voltage, rated current, short-circuit level, application, quantity, installation conditions and project specification.
Can Qiangchi propose a configuration?
Yes. A technical proposal can be prepared after review of the project requirements.
Are GA drawings available?
GA drawings are prepared according to the selected product, functional units and approved configuration.
Can FAT be arranged?
The FAT scope and witness requirements can be agreed during technical clarification.
Are all values fixed?
No. Unconfirmed values, dimensions and accessories remain subject to project-specific technical confirmation.
Where can I continue selection?
Use the Product Finder, review Selection Guides, or send the project documents directly.