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Solar Grid-Connection Substation Package

Solar Grid-Connection Substation Package is configured to the purchaser's network, load and site requirements. The typical range below is for product-page reference; final guaranteed values are confirmed in the approved technical schedule.

RATED VOLTAGE
35 kV to 66/110/132/220 kV

RATED CAPACITY
Project-specific

STANDARDS BASIS
IEC/IEEE and applicable local grid code

TYPICAL APPLICATION
Large solar parks requiring transmission-level grid interconnection.

  • Overview
  • Recommended Products

Appurtenance

  • AIS or GIS interface.
  • main power transformer.
  • protection and metering panels.
  • SCADA.
  • AC/DC auxiliary systems.

Inquiry

Please provide the following information so the product selection and quotation can be prepared accurately:

  • Plant capacity, inverter type/output and collector-system voltage.
  • Grid-connection voltage, grid code and approved single-line diagram.
  • Required equipment boundary, protection/SCADA and auxiliary systems.
  • Site conditions, delivery schedule, local installation scope and document list.

Overview

General Product Overview

The solar grid-connection substation package covers the high-voltage interface between the collector system and the utility grid. The scope can include the main transformer, HV and MV switchgear, protection, control, metering, auxiliary systems and project documentation.

Main Technical Specifications

Parameter

Typical range / configuration basis

Rated voltage

35 kV to 66/110/132/220 kV

Rated capacity

Project-specific

Frequency

50 Hz or 60 Hz; utility-specific where applicable

Standards basis

IEC/IEEE and applicable local grid code

Electrical interfaces

PV/inverter, LV, MV collector and grid-connection interfaces

Protection and control

Protection, metering, SCADA and communication by grid requirements

Deliverables

Equipment schedule, drawings, data sheets and agreed test documents

Delivery scope

Procurement and coordinated delivery; site construction by the agreed local partner

Project Scope and Interface Coordination

The package boundary is defined around the inverter output, collector network and grid-connection point. Interface schedules are used to coordinate ratings, protection, communication, auxiliary power, drawings and delivery batches across the selected equipment.

  • AIS or GIS interface.
  • main power transformer.
  • protection and metering panels.
  • SCADA.
  • AC/DC auxiliary systems.

Main Applications

Large solar parks requiring transmission-level grid interconnection.

  • Utility-scale photovoltaic plants.
  • Solar collector and MV step-up systems.
  • Grid-connection and plant auxiliary power packages.

Engineering Support

Apex supports requirement review, product selection, drawing and interface coordination, manufacturing follow-up, inspection/test-document coordination, export packing and delivery planning. The final scope is defined in the quotation and approved technical agreement.

Recommended Products

Utility-Scale Solar EPC Equipment Package | Solar MV Step-Up Station | 33/35 kV Oil-Immersed Distribution Transformer

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