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S22-M-630/10-NX1
This product is the S13, S20, and S22 new energy efficiency series primary energy efficiency oil-immersed laminated iron core distribution transformer, independently developed and produced by TBEA, primarily used in urban or rural distribution networks.

Product advantages
Low loss.
There is little harmonic influence.
The transformer is free from core lifting and maintenance.
Low noise.
Application Scenarios
This product can be widely applied to urban and rural distribution networks and other regions.
Technical Specifications

Parameter name	Unit	Parameter value
Product Model	–	S22-M-630/10-NX1
Rated capacity	KVA	630
Rated voltage ratio	KV	(10±2×2.5%)/0.4
short-circuit impedance	%	4
rated frequency	Hz	50
Connection group label	–	Dyn11
Insulation level	KV	LI175AC35/AC5
cooling method	–	ONAN
No-load loss	KW	≤460
load loss	KW	≤4460
Temperature Rise Limit	K	Top oil layer: 50 Winding hot spot: 105
Noise (sound pressure level)	dB(A)	≤48