On-Load Tap-Changing Power Transformer (OLTC) | 6-35kV Oil-Immersed

Automatic voltage regulation SZ series with on-load tap changer, IEC 60214

HK$5200.00

Overview

Nelink on-load tap-changing (OLTC) transformers regulate output voltage automatically without interrupting the load, keeping voltage stable even as network conditions fluctuate. They are essential for grids and industrial plants with tight voltage tolerances and variable demand.

Key Features

  • On-load tap changer changes taps under load - no power interruption

  • Automatic voltage-regulator controller keeps LV output within a set band

  • High-quality grain-oriented core and copper/aluminium windings

  • Hermetic or conservator tank, dehydrating breather, protection devices

  • Wide regulation range, typically ±4x2.5% or ±8x1.25%

Technical Specifications

Series

SZ11 / SZ13 oil-immersed OLTC

Voltage class

6-35 kV

Rated power

30-31500 kVA

Regulation

±4x2.5% / ±8x1.25% (custom)

Vector group

Dyn11 / Yyn0

Cooling

ONAN / ONAF

Standards

IEC 60076, IEC 60214 (tap changer)

Applications

Distribution substations, industrial parks, grids with voltage fluctuation, motor-heavy plants and long feeder circuits.

Ordering & Support

Send voltage class, kVA, required regulation range and control scheme to levit@nelink.net or WhatsApp +86 15622712297 for a configured quotation.