HV Moulded Components

HV Moulded Components introduction

HV Moulded Components are manufactured in a variety of processes from dry to wet sheet material and they can meet the highest requirements needed foruse in electric apparatus.

Applications

HV moulded components can be widely used in large-scale power transmission and transformation equipment such as EHV/UHV power transformers, reactors. Oil-immersftd power and distribution Iransformers.

Types		Characteristics
Assembly lead exits		Based on 100% imported electrical grade unbleached wood pulp, they have high purity, high tightness, high tensile strength, good electrical performance, uniform density, good absorption performance. relative dielectric constant and good compatibility with transformer oil.
L-shaped clamping insulatings
No-glued screw rods/nuts
Wet method angle rings	Split an hedral rings
	Resolving anhedral rings
Wet method special-shaped parts	Lead angle ring piece
	Insulation barrel
	Elbows and bins
	Other wet-shaped pails
Insulation structural parts	Strips and spacers
	Corrugated cardboard
	Electrostatic base ring
	Iron yoke insulating end rings
	Shield rings
	Other structural parts

Wet Method Angle Rings

Directly molded using high-quality wet paper blanks, the products have uniform density,flat surface,suitable for placing the insulation at the upper and lower edges of the coil parallel to the equipotential surface, which can shorten the insulation distance of the coil.

Dimensional Tolerance Unit：mm

Size	W	H	R		T
			<40	>40	1	1.5	2
Deviation	+2	+2	+3	5	+0.2	+0.3	+0.4
	-2	-2	-3	-5	0	0	0

Lead Angle Ring Piece

The lead angle rings are suitable for the upper and lower outlet parts of the coil, all of which are made by hand.

Dimensional Tolerance   Unit：mm

Size	H	H1	B	D1	D2	D3	d	K	R	r	δ	α1	α2
Deviation	0	0	0	0	±2	±5	2	±3	4	10	1.5	±20	±20
	-3	-3	-3	-5			-1		0	0	0

Other wet-shaped parts

Other wet-shaped parts can be customized according to customer drawings:

Strips and Spacers

Strips and Spacers are used between the coils and between the winding layers to provide properly precise oil passages.

Technical Data Sheet

Performance	Unit	Index
Moisture	%	≤7.0
Density	g/cm 3	1. 15-1. 3
Shrinkage in thickness direction	%	≤6.0
Shrinkage in other directions	%	≤1.0
Compression ratio	%	≤4.0

Strips

The strips produced by our company mainly include:rectangular strips, T-shaped strips, dovetail strips, and special-shaped strips. The mechanical strength of dovetail stripss is higher than that of type strips, and it is not easy to crack. There is a tendency to replace strips.

Spacers

Spacers made of high density boards with high short- circuit strength are used in windings. They can be supplied in the final milled state.Milled spacers and strips with rounded edges prevent damages to the
wireinsulation.

Dimensions(mm)

Item	L	W	T
			T1	T2
Size	≦220	≦80	≦30	≧2
Tolerance	±1	±1	±1.5	±1.5

L-Shaped Clamping Insulatings

The “L” shaped clamping insulatings, commonly known as paper corner plate, are the ideal bracket and clamp insulation for oil immersed transformers. They have the characteristics of good insulation performance, high mechanical strength, and easy installation, in large transformers above 110KV, they exhibit advantages such as good straightness and less deformation, making them products that is difficult to replace with any other materials and also highly economical.

Note: Fixed holes and pressing plate parts can be punched or grooved, and users can customize according to their needs

Electrostatic Base Rings

Electrostatic base rings are used as core material for static wrapping metal strips, after high-precision shape processing, and carefully chamfer corners.

Dimension(mm)	Outer diameter(d)	Width(w）	Thickness（T)
	D≦3150	≧15	≦120

Iron yoke insulating end rings

Used to support the end rings, they can also be made into a horseshoe shape.

Dimension(mm)	Item	D	W	T1	T2
	Gaskets	≦3150	≧15	≦120	–
	Spacers	–	–	–	≦100