1.725MW 10kV Transformer-Isolated PCS Container Power Conversion System for Medium Voltage Substation Tie-In

MEDIUM-VOLTAGE PROJECT INTERFACE

DC-Side Conversion: 1725kW Rated Power

AC-Side Connection: 1725kVA / 10kV

Isolation Architecture: Transformer Isolation

01 — Review the Existing MV Single-Line Diagram

Confirm the proposed connection point, available switchgear capacity, transformer arrangement and relevant protection requirements. A nominal 10kV voltage match alone is not sufficient to approve a grid connection.

02 — Approve MV Cable and Termination Details

The EPC contractor should obtain the approved termination drawing and verify cable routing, connection positions, insulation requirements and available access. Cable size and termination accessories must be selected using confirmed electrical ratings and site conditions.

03 — Coordinate Protection and Earthing

Transformer isolation is part of the specified PCS architecture, but project-specific short-circuit studies, protective relay coordination and earthing arrangements remain necessary. Final settings must follow the approved electrical design.

04 — Prepare the Substation Interface Documents

Before delivery, confirm the electrical drawings, cable schedule, equipment arrangement, protection responsibilities and required communication interfaces. These documents help reduce integration issues between the PCS supplier and the site electrical contractor.

Q1. Does the PCS container include the external 10kV switchgear and circuit breaker?

The available specification confirms transformer isolation and a 10kV AC interface, but it does not fully define the external switchgear supply scope. Buyers should request a detailed equipment list and connection diagram before ordering.

Q2. Where should the medium-voltage cables enter the container?

Cable-entry positions and termination details should be confirmed from the supplier's approved installation drawings. They should not be inferred from exterior product photos or the container dimensions.

Q3. Can this PCS share an existing 10kV feeder with other power equipment?

This depends on feeder capacity, fault levels, protection coordination, operating requirements and the proposed connection arrangement. The responsible engineer must review the complete system before approving a shared connection.

Q4. Does transformer isolation eliminate the need for site earthing and relay coordination?

No. Transformer isolation is part of the equipment architecture, but appropriate earthing, protective devices and coordinated relay settings are still required for the complete medium-voltage installation.

Q5. What should an EPC contractor provide for a substation connection review?

Useful documents include the existing 10kV single-line diagram, switchgear information, transformer details, available connection point, cable route plan, protection requirements and proposed PCS installation layout.

Planning a 1.725MW PCS Connection to a 10kV Substation?

Share your medium-voltage single-line diagram, switchgear arrangement, cable routing requirements and project location with Voltertech. Our team can discuss the relevant PCS specifications, interface documents and quotation requirements.