Product introduction

Product standards

GB1094.1~2-2013   GB/T 6451-2015

High pressure rating: 10 (10.5, 11, 6, 6.3, 6.6) kV

Low pressure rating: 0.4 kV

Tapping range: non-field excitation changer 

(5% plus or minus 5%, plus or minus 2 x2.)

On-load voltage regulation: (plus or minus 4 x2. 5%)

Link category: Dyn11 or Yyn0

Insulation level: LI75AC35 / AC5

Product parameter

Types of meaning

S11-M series 10kV three - phase double - winding non - excitation voltage regulator distribution transformer

Note 1: For transformers rated 500 kVA or less, the load loss values above the slash in the table apply to the Dyn11 or Yzn11 junction group, and the load loss values below the slash apply to the Yyno junction group.

S11 series 10kV three - phase dual - winding non - excitation voltage regulator power transformer

SZ11-M series 10kV three-phase double-winding on-load tap-changer distribution transformer

Note 1: Rated capacity 500KVA and below transformer, the load loss above the oblique line in the table applies to Dyn11 or Yzn11; the load loss  below the oblique line applies to Yyn0.

S11 - M series 20 kv three-phase double-winding non-field excitation changer distribution transformer

S11 series 35 kv three-phase double-winding non-field excitation changer distribution transformer

Note 1: Rated capacity 500KVA and below transformer, the load loss above the oblique line in the table applies to Dyn11 or Yzn11; the load loss  below the oblique line applies to Yyn0.

S11 series 35kV three - phase double - winding group non - excitation voltage regulator power transformer

Note: For transformers with a low voltage of 10.5 kVA, products with a link group designation of DYn11 are available with a rated capacity of 3150 kvA and above and a -5% tap position for maximum current tapping.

SZ11 series 35kV three - phase double - winding on - load voltage regulator power transformer

Note: for low voltage of 10.5 kVA transformer, can provide link group of products labeled DYn11. - 7.5% tap position for maximum current tap.