160kVA Oil-Immersed 10kV Distribution Transformer S13-M-160/10 for Solar PV Step-Down

Model:S13-M-160/10 (S20 / S22 / SH15 series available)

Rated Capacity:160 kVA

Phase:Three-phase

Frequency:50 Hz / 60 Hz

Product Details
FAQs
Packing & Delivery

Product Overview

160 kVA three-phase oil-immersed distribution transformer, 10 kV / 0.4 kV, purpose-built for solar PV step-down and renewable energy integration. Available in S13 / S20 / S22 series (SH15 amorphous alloy optional), engineered to deliver stable, efficient voltage conversion for utility-scale photovoltaic plants, commercial solar installations, and renewable microgrid applications. Manufactured in accordance with GB 1094, GB/T 6451, and GB 20052 for energy efficiency and safety.

Key Features

Low-loss CRGO silicon steel core — Grain-oriented steel with step-lap construction minimizes no-load losses and improves operating efficiency, critical for intermittent solar generation cycles.
Copper windings — High mechanical strength and excellent short-circuit withstand ensure long-term reliability under fluctuating PV output conditions.
Natural oil circulation cooling (ONAN) — Corrugated fin radiator design handles variable load profiles typical of solar applications without forced cooling.
Sealed, maintenance-free tank — Corrugated tank prevents moisture ingress and extends service life in outdoor solar farm environments.
Quiet operation — Low noise and low temperature rise suitable for installations near residential or mixed-use areas adjacent to solar sites.
Compact footprint — Optimized dimensions for integration into solar inverter stations, prefabricated substations, and containerized MV solutions.

Typical Applications

Utility-scale solar PV step-down stations (medium voltage to LV auxiliary supply)
Commercial and industrial rooftop solar installations
Solar + storage hybrid microgrids and BESS integration
Prefabricated (box-type) substations for PV plants
Renewable energy collector substations and balance-of-plant
Agricultural and rural solar power distribution networks

Standards & Certifications

Design Standards: GB 1094, GB/T 6451, GB 20052
Quality System: ISO 9001
CE Certification: Available upon request

Q1: What does “10kV oil-immersed transformer” mean?

A: It is a transformer that uses transformer oil for insulation and cooling, with a primary (high-voltage) rated at 10 kV and a secondary (low-voltage) at 0.4 kV, suitable for stepping down medium-voltage power to low voltage. The 10kV rating is the most common MV distribution voltage worldwide for utility and industrial applications, including solar PV plants.

Q2: Is this transformer suitable for solar PV applications?

A: Yes. The S13-M-160/10 is purpose-engineered for solar PV step-down and renewable energy integration. Its low-loss core design, ONAN cooling, and sealed tank construction make it ideal for outdoor solar farm environments. It handles variable load profiles typical of photovoltaic generation and can be integrated into prefabricated substations, inverter stations, and BESS installations.

Q3: Which GB standards does this transformer comply with?

A: It is manufactured per GB 1094 (power transformers), GB/T 6451 (oil-immersed power transformers), and GB 20052 (energy efficiency limits and grades), ensuring full compliance with Chinese national standards. CE certification is available upon request for export markets.

Q4: What is the difference between oil-immersed and dry-type transformers for solar applications?

A: Oil-immersed transformers offer lower cost, better overload capacity, and superior heat dissipation for outdoor solar installations. Dry-type transformers are oil-free and suitable for indoor or fire-sensitive environments. For utility-scale solar farms, oil-immersed units are typically preferred due to cost-effectiveness and proven outdoor durability.

Q5: Can the voltage ratio be customized for different grid requirements?

A: Yes. Besides the standard 10kV/0.4kV, common ratios such as 10.5kV/0.4kV, 11kV/0.4kV, 6kV/0.4kV, and 20kV/0.4kV can be manufactured according to project specifications. Tap changer configuration can also be customized.

Q6: What accessories are included or available?

A: Standard supply includes the transformer with radiator, sealed corrugated tank, and terminal box. Optional accessories include off-circuit / on-load tap changer, temperature indicator, oil level gauge, pressure relief device, Buchholz relay, and monitoring interface for solar SCADA integration.

Export-standard plywood crate or nude packing with waterproof plastic film and steel banding. The transformer is fixed on a steel base frame with lifting lugs. Suitable for sea, air, and land transport. Custom labeling and palletization available per destination country requirements.