off-Circuit Tap Changer Transformer Load Break Switch off Load Tap Changer

• Application: Power
• Phase: Three
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001
• Model NO.: vertical type and horizontal type wsl series
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Brand: Ville
• Structure: Three-Column Disconnector
• Installation: Indoor High-Voltage
• Grounding Mode: Not Grounding
• Movement Mode: Vertical Rotary Type
• Number of Poles: Three Pole
• Grounding: Un Grounded
• Series: Three
• Run: Vertical Rotation
• Switching Mode: Double-Throw Type
• Common Model: Vr
• Installation Type: Vertical Type and Horizontal Type
• Applied Transformer: Three-Phase and Single-Phase Oil-Immersed Power Tr
• Applied Transformer Frequency: 50, 60 Hz
• Equipped: on Transformer Tank or Transform
• Working Condition: Under Non-Energized Condition.
• Transport Package: Wooden Case
• Specification: ISO
• Trademark: VILLE
• Origin: Ningbo
• HS Code: 8504220000
• Production Capacity: 50000 Sets

Product Description

Introduction

This type of tap changer has two kinds of products, they are of vertical type and horizontal type. It is usually
used in three-phase and single-phase oil-immersed power transformer with frequency of 50, 60 Hz, rated
voltage 10~66 kV, rated current from 63A to 1000A. It can be regulated on middle or neutral terminal. It can be
equipped directly on transformer tank or transformer tank wall working under non-energized condition.

Off-circuit Capacity Regulating Tap Changer

This type of tap changer is designed as step changeable facility used for capacity regulating transformer under
non-energized condition. It is suitable for three-phase oi-immersed capacity regulating with voltage rated 10kV
and below, rated capacity 315kVA and below. It can be connected in series and parallel system on LV and HV
windings or connected b star or delta method through which to realize transformer capacity changeable. By this
way we can reduce iron loss and increase transformer load efficiency and power factor avoiding the
phenomenon of "Big horse will drag small carriage", and can be used to regulate voltage terminals

Type of tap changer	Install Dimenson (mm)							Holes on tank cover (mm)
	H	H1	H2	H3	L	Y	Md
WSL II 125/10-4×3L	323	25	106	65	52	196	M8	φ43
WSL II 250/10-4×3L	323	25	106	65	52	212	M10	φ43
WSL II 400/10-4×3L	474	28	141	105	45	258	M16	φ43
WSL II 630/10-4×3L	474	28	141	105	45	270	M18	φ43
WSL II 125/10-6×5L	323	25	106	65	52	196	M8	φ43
WSL II 250/10-6×5L	323	25	106	65	52	212	M10	φ43
WSL II 400/10-6×5L	474	28	141	105	65	298	M16	φ43
WSL II 630/10-6×5L	474	28	141	105	65	310	M18	φ43
WSL II 125/10-8×7L	323	25	106	65	65	240	M8	φ43
WSL II 250/10-8×7L	323	25	106	65	65	256	M10	φ43
WSL II 125/35-4×3L	598	25	178	130	55	204	M8	φ43
WSL II 250/35-4×3L	598	25	178	130	55	220	M10	φ43
WSL II 400/35-4×3L	625	28	184	138	45	258	M16	φ43
WSL II 630/35-4×3L	625	28	184	138	45	270	M18	φ43
WSL II 125/35-6×5L	598	25	178	130	55	244	M8	φ43
WSL II 250/35-6×5L	598	25	178	130	55	260	M10	φ43
WSL II 400/35-6×5L	625	28	184	138	65	298	M16	φ43
WSL II 630/35-6×5L	625	28	184	138	65	310	M18	φ43
WSL II 125/66-4×3L	1082	25	300	250	50	232	M8	φ43
WSL II 250/66-4×3L	1082	25	300	250	50	248	M10	φ43
WSL II 125/66-6×5L	1082	25	300	250	55	332	M8	φ43
WSL II 250/66-6×5L	1082	25	300	250	55	348	M10	φ43
WSL IV 125/35-3×2L(Y-Delta)	598	25	178	130	55	308	M8	φ43
WSL IV 250/35-3×2L(Y-Delta)	598	25	178	130	55	324	M10	φ43

company profile:
Main product line: Tap changer and HV switchgear
Tap changer manufacturing with fullest vertical integration
Tap Changer Products Range On-Load Tap Changer:
* Conventional OLTC for transformer with voltage up to 765kV
*Vacuum OLTC for oil transformer with voltage up to 765kV
*Vacuum OLTC for dry transformer with voltage of 72.5kV
Off-Circuit Tap Changer
* Application for the transformer with voltage up to 765kV



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