Products

De-energized tap changer

BFY type oil-immersed load break switch

On load tap changer

+

Combined tap changer

Category:

无励磁分接开关

Service Hotline:+86-576-83379018

product Online Inquiry

Product Details

The non‑excited three‑phase strip‑type series‑parallel, star‑delta conversion, and tap‑changing combined tap changers developed by our company meet the requirements for switching between different voltage levels in power transmission and transformation projects.

WST series linear form combined de-energized tap-changer

Type of tap-changer and installation size chart

Type of tap-changer and installation size chart

Type of combined tap-changer Rated current (A) Highest voltage for equipment (kV) Range of voltage regulation Number of phases Regulating Position Installation dimensions (mm) Holes on tank cover (mm)
H H1 H2 L L1 L2 L3 L4 Md
WST Ⅳ 63/12-3×2 (Y-Δ) 63 12 ±5% 3 Middle part 180 75 70 534 167 200 -- 115 M6 Φ43
WST Ⅳ 63/12-4×3 63 12 ±5% 3 Middle part 180 75 70 534 167 200 -- 115 M6
WST Ⅳ 63/12-3×2 (Y-Δ) 63 12 ±2×2.5% 3 Middle part 180 75 70 570 185 280 -- 115 M6
WST Ⅳ 63/12-6×5 63 12 ±2×2.5% 3 Middle part 180 75 70 570 185 280 -- 115 M6
WST Ⅳ 63/12-8×7 63 12 ±3×2.5% 3 Middle part 180 75 70 814 258 298 -- 123 M6
WST Ⅳ 63/12-3×2 (Y-Δ) 63 12 ±3×2.5% 3 Middle part 180 75 70 814 258 298 -- 123 M6
WST Ⅳ 125/12-3×2 (Y-Δ) 125 12 ±5% 3 Middle part 185 75 70 750 235 280 -- 110 M8
WST Ⅳ 125/12-4×3 125 12 ±5% 3 Middle part 185 75 70 750 235 280 -- 110 M8
WST Ⅳ 125/12-3×2 (Y-Δ) 125 12 ±2×2.5% 3 Middle part 185 75 70 756 238 280 -- 110 M8
WST Ⅳ 125/12-6×5 125 12 ±2×2.5% 3 Middle part 185 75 70 756 238 280 -- 110 M8
WST Ⅳ 125/12-3×2 (Y-Δ) 125 12 ±3×2.5% 3 Middle part 185 75 70 894 287 320 -- 115 M8
WST Ⅳ 125/12-8×7 125 12 ±3×2.5% 3 Middle part 185 75 70 894 287 320 -- 115 M8
WST Ⅳ 250/12-3×2Z (Y-Δ) 250 12 ±5% 3 Middle part 185 75 70 790 245 300 -- 120 M10
WST Ⅳ 250/12-4×3Z 250 12 ±5% 3 Middle part 185 75 70 790 245 300 -- 120 M10
WST Ⅳ 250/12-3×2Z (Y-Δ) 250 12 ±2×2.5% 3 Middle part 185 75 70 880 275 330 -- 120 M10
WST Ⅳ 250/12-6×5Z 250 12 ±2×2.5% 3 Middle part 185 75 70 880 275 330 -- 120 M10
WST Ⅳ 250/12-3×2Z (Y-Δ) 250 12 ±3×2.5% 3 Middle part 185 75 70 1084 343 398 -- 120 M10
WST Ⅳ 250/12-8×7Z 250 12 ±3×2.5% 3 Middle part 185 75 70 1084 343 398 -- 120 M10
WST Ⅱ 63/12-4×3ZH 63 12 ±5% 3 Middle part 180 75 70 474 157 182 58 97 M6
WST Ⅱ 63/12-6×5ZH 63 12 ±2×2.5% 3 Middle part 180 75 70 618 205 230 58 97 M6
WST Ⅱ 125/12-4×3ZH 125 12 ±5% 3 Middle part 185 75 70 519 172 197 58 105 M8
WST Ⅱ 125/12-6×5ZH 125 12 ±2×2.5% 3 Middle part 185 75 70 693 230 255 58 105 M8
WST Ⅱ 250/12-4×3ZH 250 12 ±5% 3 Middle part 185 75 70 604 207 231 68 120 M10
WST Ⅱ 250/12-6×5ZH 250 12 ±2×2.5% 3 Middle part 185 75 70 808 275 299 68 120 M10
WST Ⅱ 63/24-4×3ZH 63 24 ±5% 3 Middle part 210 95 80 486 157 187 58 101 M6
WST Ⅱ 63/24-6×5ZH 63 24 ±2×2.5% 3 Middle part 210 95 80 630 205 235 58 101 M6
WST Ⅱ 125/24-4×3ZH 125 24 ±5% 3 Middle part 210 95 80 531 172 202 58 101 M8
WST Ⅱ 125/24-6×5ZH 125 24 ±2×2.5% 3 Middle part 215 95 80 705 230 260 58 111 M8
WST Ⅱ 63/40.5-4×3ZH 63 40.5 ±5% 3 Middle part 210 95 80 546 167 216 58 101 M6
WST Ⅱ 63/40.5-6×5ZH 63 40.5 ±2×2.5% 3 Middle part 210 95 80 690 215 268 58 101 M6
WST Ⅱ 125/40.5-4×3ZH 125 40.5 ±5% 3 Middle part 215 95 80 591 182 233 58 111 M8
WST Ⅱ 125/40.5-6×5ZH 125 40.5 ±2×2.5% 3 Middle part 215 95 80 765 240 291 58 111 M8
WST Ⅱ 250/40.5-4×3ZH 250 40.5 ±5% 3 Middle part 215 95 80 816 287 337 68 124 M10
WST Ⅱ 250/40.5-6×5ZH 250 40.5 ±2×2.5% 3 Middle part 215 95 80 1020 355 405 68 124 M10

Note

ZH - Double-layer combined tap changers

Tap changers with raised undersides can be manufactured upon customer request.

Tap changers rated at 63 and 125 A are suitable for transformer tank covers with thicknesses of 6 to 10 mm.

Tap changers rated at 250 and 300 A are suitable for transformer tank covers with thicknesses of 8 to 12 mm.

12~24kV Delta connection, series parallel transition with tap regulating,bar-type combined switch (installed on tank cover)

Type of tap-changer and installation size chart

Type of combined tap-changer Installation dimension (mm) Holes on tank cover (mm)
H1 H2 H3 L1 L2 L3 Md
WST VI 63/24–5×2
WST V 63/24–4×3 		175 75 75 221 256 101 M6 2-Φ43
WST VI 63/24–5×2
WST V 63/24–6×5 		175 75 75 221 256 101 M6 2-Φ43
WST VI 125/24–5×2
WST V 125/24–4×3 		180 75 75 231 276 111 M8 2-Φ43
WST VI 125/24–5×2
WST V 125/24–6×5 		180 75 75 236 276 111 M8 2-Φ43

12~24kV Delta connection, series parallel transition with tap regulating,bar-type combined switch (installed on tank cover)

Type of tap-changer and installation size chart

Type of combined tap-changer Installation dimension (mm) Holes on tank cover (mm)
H1 H2 H3 L1 L2 L3 Md
WST VI 63/24-5 × 2
WST V 63/24-4 × 3 		175 75 75 221 256 101 M6 2-Φ43
WST VI 63/24-5 × 2
WST V 63/24-6 × 5 		175 75 75 221 256 101 M6 2-Φ43
WST VI 125/24-5 × 2
WST V 125/24-4 × 3 		180 75 75 231 276 111 M8 2-Φ43
WST VI 125/24-5 × 2
WST V 125/24-6 × 5 		180 75 75 236 276 111 M8 2-Φ43

12~24kV series parallel transition with tap regulating, bar-type combined switch(installed on tank cover)

Type of tap-changer and installation size chart

Type of combined tap-changer Installation dimension (mm) Holes on tank cover (mm)
H1 H2 H3 L L1 L2 L3 Md  
WST VI, 63/24-5×2
WST II, 63/24-4×3
WST II, 63/24-4×3 		230 75 65 698 221 256 101 M6 2-Φ43
WST VI, 63/24-5×2
WST II, 63/24-6×5
WST II, 63/24-6×5 		230 75 65 698 221 256 101 M6 2-Φ43
WST VI 125/24-5×2
WST II 125/24-4×3
WST II 125/24-4×3 		285 95 80 698 221 256 111 M8 2-Φ43
WST VI 125/24-5×2
WST II 125/24-6×5
WST II 125/24-6×5 		285 95 80 708 226 256 111 M8 2-Φ43
Combination switch model
Type of combined tap-changer 		Installation dimension (mm) Hatch Opening (mm)
Holes on tank cover(mm)
H1 H2 H3 L L1 L2 L3 Md
WST VI263/24-5×2
WST II263/24-4×3
WST II263/24-4×3 		210 75 55 638 206 226 92 M6 2-Φ37
WST VI263/24-5×2
WST II263/24-6×5
WST II263/24-6×5 		210 75 55 638 206 226 92 M6 2-Φ37

12~24kV series parallel transition with tap regulating,bar-type combined switch(installed on tank wall)

Type of tap-changer and installation size chart

Combination switch model
Type of combined tap-changer 		Installation dimension (mm) Hole in the box wall (mm)
Holes on tank cover(mm)
L1 L2 L3 L4 L5 Md
WSTⅥ;63/24-5×2Z
WSTⅠ;63/24-4×3Z
WSTⅢ;63/24-4×3Z 		261 296 221 302 143 M6 2-Φ43
WSTⅥ;63/24-5×2Z
WSTⅡ;63/24-6×5Z
WSTⅢ;63/24-6×5Z 		261 296 221 302 143 M6 2-Φ43
WSTⅥ;125/24-5×2Z
WSTⅡ;125/24-4×3Z
WSTⅢ;125/24-4×3Z 		261 305 230 311 152 M8 2-Φ43
WSTⅥ;125/24-5×2Z
WSTⅡ;125/24-6×5Z
WSTⅢ;125/24-6×5Z 		270 305 230 311 152 M8 2-Φ43

Keywords:

Combined tap changer

Learn more about the product

Submit your request or feedback

If you are interested in our products, please feel free to contact us to discuss potential collaboration.

Submit