Wenzhou Shuowei Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of transformer off load linear tap changer in China, also supports customized service. Welcome to wholesale bulk advanced transformer off load linear tap changer in stock here from our factory. If you have any enquiry about quotation, please feel free to email us.
Transformer off Load Linear Tap changer
Products Description
This instruction is specifically designed for the strip-type off-circuit tap changer, which operates at a frequency of either 50 or 60Hz. It is intended for use with tap changers that have a rated current of 63A or lower, and a rated voltage of up to 33kV. For the purpose of this document, we will refer to this type of tap changer simply as "tap changer." This particular tap changer is utilized within oil-immersed power transformers and is intended to be operated in an off-circuit state, meaning it is not connected to the electrical circuit while adjustments are being made.
Products parameter
| Type | WST 30 | WST 63 | WST 125 | |
| Phase number | Three-phase | |||
| Connection mode | Central point | |||
| Rated through current (A) | 30 | 63 | 125 | |
| Short-circuit capacity | Heat stableness current (kA/2S) | 0.7 | 1.6 | 2.5 |
| Dynamic stableness current (kA) | 1.8 | 4 | 6.25 | |
| Rated frequency (HZ) | 50~60 | |||
| Insulation level (KV) | Rated voltage (KV) | 10KV | 20KV | 35KV |
| Power-frequency withstand Voltage (50HZ/1min) | 42KV | 55KV | 95KV | |
| Impulse (1.2/50 μS) | 75KV | 125KV | 250KV | |
| Sealing Performance (KPa/24h) | 60 | |||
| Machine life (Thousands of times) | 2 | |||
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