SG Series Three-phase Air-immersed Transformer

Attributes Description Documentation Resource Library

Key attributes

Brand	ROCKWILL
Model NO.	SG Series Three-phase Air-immersed Transformer
Rated capacity	15kVA
Primary voltage	400V
Secondary voltage	220V
Series	SG Series

Description

Overview

The transformers have two body types: exposed and fence. It has the advantage of low consumption, low noise, better performance against fire and free of pollution etc. The shell of the protective type is made of steel plate, the transformer is in the shell. There are several holes outside the shell to inter of the power lines in addition, this type can add the monitor meter of the voltage and current according to the customer's request or wheel for moving. If the capacity is above 80KVA, it can also add the axial flow fan. And if the capacity

SG series Three-phase Air-immersed Transformer, is natural cooling indoor, it is applicable to the circuit of AC 50Hz~60Hz, 1000V and below, it can be use in control, power machine-tool and medical equipment small type power as well as work lighting and signal lamp power.

Basic Standard Parameters

Item	Standard Value
Rated capacity	0.5kVA ~ 3000kVA
Rated frequency	50Hz / 60Hz
Cooling mode	AN (natural air cooling); optional AF (forced air cooling)
Insulation class	F class (common), H class (high temperature environment)
Temperature rise limit	100K (F class); 125K (H class)
Vector group	Dyn11 (main), Yyn0, Dd0
Short-circuit impedance	4% / 6%
Protection grade	IP00 (bare unit), IP20 (with cabinet)
Normal working environment	Ambient temp: -5℃ ~ +40℃; Altitude ≤1000m; No condensation & corrosive gas

Applied Standards

China: GB 1094 series, GB/T 10228, GB 6450
International: IEC 60076, IEC 60726

If you need to know about more parameters , Please check the model selection manual.↓↓↓

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