De-energized linear tap changer

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0102030405

WST de-energized, triple-phase, linear tap changer (terminal voltage regulation). Opening dimensions Φ43

The tap changer is specifically designed for triple-phase oil-insulated transformers operating at frequencies of 50Hz and 60Hz. It is suitable for transformers with a maximum equipment voltage of 10kV and 24kV, and a rated through-current of 30A and 63A. The tap changer can be conveniently fixed on the transformer tank cover and replaced when the transformer is not energized.

product details

Model Meaning

Advantages

1. The tap changer is designed to have a reasonable structure, small size, and low installation space requirements.

2. The tap changer features a gear shifting design that provides flexibility, accurate positioning, and the ability to easily meet different requirements, resulting in efficient control.

3. The tap changer is designed to have minimal contact resistance, which is essential for maintaining the stability and efficiency of the circuit.

4. The tap changer is produced following standardized manufacturing processes and can be customized to suit individual requirements. It offers cost savings while ensuring the same level of quality.

Technical Data

Phases	Triple
Highest voltage for equipment	10kV、35kV
Rated through-current	63A-300A
Voltage regulation	0.025
Tap positions	3～7

Voltage Regulation Principle

Outline

No.	Model No.	Regulating position	Install dimension mm
No.	Model No.	Regulating position	L	L1	L2	L3	L4	L5	H	H1
1	WSTⅠ63/10-3×3	Terminal point	617	232	199	59	99	24	100	78
2	WSTⅠ125/10-3×3		665	248	215	59	107	29	100	78
3	WSTⅠ250/10-3×3		665	248	215	67	112	29	102	78
4	WSTⅠ63/35-3×3		686	266	211	59	103	24	120	98
5	WSTⅠ125/35-3×3		735	284	228	59	107	34	120	98
6	WSTⅠ250/35-3×3		735	284	228	59	112	34	122	98
7	WSTⅠ63/10-5×5		760	280	247	59	99	24	100	78
8	WSTⅠ125/10-5×5		839	306	273	59	107	29	100	78
9	WSTⅠ250/10-5×5Z		925	349	316	67	112	29	102	78
10	WSTⅠ300/10-5×5Z		976	362	330	67	112	34	105	78
11	WSTⅠ63/35-5×5		830	314	259	59	103	24	120	98
12	WSTⅠ125/35-5×5Z		1093	422	373	67	107	34	120	98
13	WSTⅠ250/35-5×5Z		1093	422	373	67	112	34	122	98
14	WSTⅠ300/35-5×5Z		1093	422	373	67	112	34	125	98
15	WSTⅠ63/10-7×7		908	331	293	77	110	24	100	78
16	WSTⅠ125/10-7×7T		1048	375	336	--	118	29	100	78
17	WSTⅠ250/10-7×7T		1048	375	336	--	118	29	102	78