Ganelec
Off Circuit Tap Selectors - Tap Change Switch
Off Circuit Tap Selectors - Tap Change Switch
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Complying with the requirements of IEC 60214-1 The standard range includes three voltage ratings – 11kV, 22kV and 33KV options of 100A or 200A.
Construction
The design includes high electrical strength contact boards which combine electrical and mechanical reliability enabling ease of connection to transformer tapping leads. The selector connections are made by shorting two fixed studs on the contact board via a moving contact ring which is tensioned by a helical spring, contact is maintained by a free sliding bobbin. The assembly is retained by washers either side of the contact ring to prevent lateral movement, finally being secured by special application pins.
Fitting
The selector handle assembly kit includes a bearing boss that must be welded to the transformer tank prior to painting. The drive handle is threaded through this boss secured with a drive cap and sealed with ‘O’ rings. The handle connects to the selector using a square steel drive shaft which can be sourced and cut locally or can be supplied by us if required. Tapping range can be limited by fitting an extra stop –supplied, in the required indicator dial hole.
Termination
The transformer leads are terminated via the threaded side of the fixed contact suds (M6). We can supply contact washers and nuts if required.
Applications
The selector is commonly used in pole mounted or ground-based distribution transformers. The selector is suitable for use in transformer oil and synthetic insulating fluids. Special versions are available for operating in air.
Specifications
| Product code | Voltage Ur (kV) | Current Ir (A) | Phase | Type | Bracket |
| RTS 22kV 100A 3Ph - L/90° | 22 | 100 | 3 | L | Steel |
| RTS 22kV 100A 3Ph - R/90° | 22 | 100 | 3 | R | Steel |
| RTS 22kV 100A 3Ph - LR/90° | 22 | 100 | 3 | LR | Steel |
| RTS 22kV 100A 3Ph 180LR | 22 | 100 | 3 | LR | Steel |
| RTS 22kV 100A 3Ph 270 LR | 22 | 100 | 3 | LR | Steel |
| RTS 22kV 100A 3Ph 360 LR | 22 | 100 | 3 | LR | Steel |
| RTS 22kV 100A 3Ph 180 L | 22 | 100 | 3 | L | Steel |
| RTS 22kV 100A 3Ph 180 R | 22 | 100 | 3 | R | Steel |
| RTS 22kV 100A 3Ph 270 L | 22 | 100 | 3 | L | Steel |
| RTS 22kV 100A 3Ph 270 R | 22 | 100 | 3 | R | Steel |
| RTS 22kV 100A 3Ph 360 L | 22 | 100 | 3 | L | Steel |
| RTS 22kV 100A 3Ph 360 R | 22 | 100 | 3 | R | Steel |
| RTS 22kV 100A 6Ph L | 22 | 100 | 6 | L | Steel |
| RTS 22kV 100A 6Ph LR | 22 | 100 | 6 | LR | Steel |
| RTS 22kV 100A 6Ph R | 22 | 100 | 6 | R | Steel |
Catalogue
GANELEC/OUCO Transformer Equipment Accessories Catalogue - pg 25
