SZ11 Type 10kV Series On-Load Voltage Regulator Power Transformer

The SZ11 series 10kV on-load tap-changing oil-immersed power transformer is engineered for reliable outdoor voltage regulation in demanding environments. Featuring a high-permeability silicon steel core and a multi-layer cylindrical high-voltage winding, it ensures low no-load loss, energy efficiency, and enhanced mechanical strength. Designed to meet GB standards, this transformer provides stable power supply, making it ideal for industrial and utility applications requiring consistent voltage control.

product details

Product Introduction

- Device Type: Outdoor Type
- Normal Ambient Operating Conditions: Altitude not exceeding 1000m;

Ambient temperature range: max. +40℃, min. -25℃

- Special Ambient Operating Conditions: Altitude exceeding 1000m;

Ambient temperature range: max. +40℃, min. -45℃ (Specify in detail when ordering)

- Installation Site: Environment free from corrosive gases and obvious dirt

Type & Meaning

1	Three-Phase Oil-Immersed Transformer
2	On-Load Tap-Changing
3	Performance Level Code
4	Rated Capacity (kVA)
5	Voltage Class (kV)

(*) Type 9, 10, 11 or even lower loss products can be provided as required.

product Display

SZ11 10kV Series Power Transformer right

Product Features

- On-load voltage regulation meets user voltage requirements, improves power supply quality, and saves energy.
- The core is made of high-quality high-permeability silicon steel sheets with full oblique step-lap joints, reducing the core's no-load loss and no-load current.
- The high-voltage winding adopts a multi-layer cylindrical structure to improve the impulse distribution. The winding uses a non-varnish impregnation process and is bound with shrink tape, enhancing the mechanical strength of the winding.

Technical Parameters

Technical Parameters of SZ11 Series 10kV On-Load Tap-Changing Power Transformers

Rated Capacity (kVA)	Voltage Combination and Tap Range			Connection Symbol	No-Load Loss (W)	Load Loss (W)	Short-Circuit Impedance (%)	No-Load Current (%)	Weight (kg)		Overall Dimensions (mm)	Wheelbase (mm)
Rated Capacity (kVA)	High Voltage (KV)	Tap Changer (%)	Low Voltage (kV)	Connection Symbol	No-Load Loss (W)	Load Loss (W)	Short-Circuit Impedance (%)	No-Load Current (%)	Oil Weight	Total Weight	Length (L)×Width (W)×Height (H)	Wheelbase (mm)
200	6 6.3 10	±4×2.5	0.4	Yyn0 Or Dyn11	480	3060	4.0	1.5	200	1000	1650×880×1350	550×550
250					560	3600		1.4	230	1100	1700×900×1500	550×550
315					670	4320		1.4	260	1300	1750×950×1600	660×660
400					800	5220		1.3	320	1500	1800×1100×1650	660×660
500					960	6210		1.2	360	1750	1850×1150×1700	660×660
630					1200	7650	4.5	1.1	400	2100	2000×1200×1750	710×710
800					1400	9360		1.0	620	2500	2300×1400×1850	820×820
1000					1700	10980		1.0	670	2900	2350×1450×1900	820×820
1250					1950	13050		0.9	690	3520	2400×1500×1950	920×820
1600					2400	15570		0.8	890	4150	2550×1550×2000	920×820
2000					2850	18900		0.8	950	4850	2780×1600×2280	1070×1070
2500					3300	22350	5.5	0.7	1130	5900	2950×1800×2400	1070×1070