Compact Substation

ZGS13-H Pad-Mounted Transformer

The ZGS13-H pad-mounted transformer integrates an oil-immersed transformer, medium-voltage load switching and fuse protection in a compact substation assembly. Designed for 12 kV distribution, it supports ring-network, dual-source and terminal supply arrangements for local power distribution.

The integrated format suits sites where equipment footprint and cable routing are key layout considerations. Medium-voltage protection combines a load switch with backup current-limiting and plug-in fuses. Low-voltage distribution, metering, compensation and control functions are configured for the application, with the transformer capacity and outgoing circuits matched to the project load.

Technical Specifications

MV Voltage	12 kV
Supply Arrangement	Ring-network, dual-source or terminal supply
MV Switching & Protection	Load switch with backup current-limiting and plug-in fuses
Functions	Transformation, distribution, metering, compensation, control and protection
Installation	Indoor or outdoor
Standards	GB/T 17467

Key Features

Compact, fully assembled pad-mounted design.
Integrated MV switching, fuse protection and transformer.
Supports ring-network, dual-source and terminal supply arrangements.
Indoor or outdoor installation.

Typical Applications

Residential neighbourhood substations
Commercial complexes
Industrial park distribution

Installation & Aftercare

Prepare the site, plan routine checks and keep service records.

What needs to be ready before installation?

Provide a level foundation, a clear lifting route and service access to every operating door; agree lifting points and cable-trench dimensions from the supplied drawings.
Coordinate incoming and outgoing cables, site earthing, drainage and ventilation; keep the enclosure away from flooding or blocked air paths.
Before energisation, qualified personnel verify the supplied protection settings, interlocks and installation test records against the approved single-line diagram.

What should operators check during routine rounds?

Check enclosure seals, doors, drainage and ventilation; record load and any fitted temperature, alarm or fault indications.

What is covered during planned maintenance?

During planned isolation, inspect cable terminations, earthing, protection devices and operating interlocks; remove contamination using the equipment instructions.
Inspect the integrated oil tank, bushings and seals for leakage or corrosion. Fuse replacement and internal tank work require qualified personnel and the specified manufacturer procedure.

Customization Options

Define the electrical configuration and the details needed for your site.

The ZGS13-H combines MV switching, fuse protection and an oil-immersed transformer in one compact pad-mounted assembly. Supply arrangement and LV functions are selected for the approved project requirements.

Supply arrangement: Terminal, ring-network or dual-source supply to match the distribution scheme.
MV switching & protection: Load-switch arrangement, backup current-limiting fuse and plug-in fuse selected for the network and transformer duty.
Transformer: Integrated oil-immersed transformer; final capacity, winding voltages, connection and tap range are confirmed against the approved project specification.
Installation: Indoor or outdoor siting, foundation, cable entry and service access.
LV distribution: Outgoing circuits, metering, reactive-power compensation, control and monitoring to the load schedule.
Operating conditions: Declare altitude, ambient temperature and other site conditions for engineering review.

Project-specific options and accessories are confirmed in the quotation and approved drawings. Discuss your requirements →