Bay O Net tap changer switch for oil transformer
This kind of switch applies to single-phase, three phase , combination oil-immersed transformer electrical power with frequency of 50HZ,,60HZ,rated voltage of 10KV,35KV,rated current of 30A ~500A; the voltage-regulating mode are: central part, terminal point neutral point, which can be directly fixed on the tank cover of the transformer, exchange under the off-circuit condition.

Bay- O-Net Assembly is the brief element of oil-transformer, to protect the equipment when over-current. When install the fuse wire in it, the Bay-O-Net will provide the safe, highly efficient protection, according to the current, oil-femperature.
The Bay-O-Net Assembly is suitable for current sensing fuse wire, dual sensing fuse wire, dual element fuse wire, and ELSP current-limiting backup fuse, etc.
It is suitable for high-voltage power system with alternating current of 50Hz,standard voltage of 15. 5kV, current rating of 140A. It must be combining with MagnX Interrupter of ELSP Current-Limiting Backup Fuse to protect transformer from overload and short circuit.


Bay-o-net Assembly is the brief element of oil-transformer, to protect the equipment when over-current. When install the fuse wire in it, the Bay-o-net will provide the safe, highly efficient protection, according to the current, oil temperature.
The Bay-o-net Assembly is suitable for current sensing fuse wire, dual sensing fuse wire, dual element fuse wire, and ELSP current-limiting backup fuse,etc.

It is suitable for high-voltage power system with alternating current of 50HZ, standard voltage of 15.5kv, current rating of 140A. It must be combining with Magn X Interrupter of ELSP Current-limiting Backup Fuse to protect transformer from overload and short circuit.

Abroad series model numbers :

9F54LFC120
9F54DCB001
9F54DCA701
9F54VDE904
9F54WLD102
CBUC15050C100
9F54VDE404
3543040M61M
3545050M61M
3563020M11M
9F54MFC080
3545040M61M
3564030M11M
4000358C16CB
3543030M61M
3544125M71M
4038361C03CB
9F54WLD202
4000358C18CB
3543065M51M
9F54DCA501
43F100-I
9F54WLD302
3565006M11M
3564018M11M
CBUC35150D100
9F54DCA901
9F54DBA701
3563040M11M
9F54WLD303
3543100M51M
1. Model and meaning :
2. This product is composed of overload protection fuse and fuse holder.
2.1 Basic engineering data:

Note:Dual fuse maximum 63A
2.2 See picture 1 for the size and installation of the overload protection fuse
Picture 1,XRNT4-15.5 High voltage fuses for overload protection of oil immersed transformer .

2.3 See picture 2 and picture 3 for the dimension and installation of the plug-in fuse holder
3. Installation steps of fuse wire:
4. Time-current characteristic curve of bay-o-net fuse as below :

Model and meaning

Xi 'an Wuhuan Special Fuse Co., Ltd. is a high-technology manufacturer company established by Wuhuan Electric Group in Xi 'an, Shaanxi Province, China's high voltage electric production base in 2000. It mainly engaged in the development, design, manufacture, sales and service of fuses and other high voltage appliances. The main products of the company are high-voltage current limiting fuses, which are used in indoor 50HZ/60HZ power systems with rated voltage of 3.6-40.5KV. As American power transformer, Europe type power transformer, high voltage motor, voltage transformer, power capacitors and other electric equipment overload and short circuit protection, and in other appliances such as: load switch, vacuum contactor etc, protection circuit and complete sets of electrical equipment from damage by excessive overload current and short circuit current. The company has high-quality technical personnel, professional fuse manufacturing and testing equipment and advanced modern enterprise management concept, its product categories, production scale and sales revenue are growing at a high speed. Wuhuan Company implements ISO9001:2000 quality system standard, uses MCAD development and design, with the help of Intuitive ERP and advanced testing equipment to ensure the reliability of production and high quality products. All the products have passed the type test of the national high voltage electrical apparatus quality supervison and inspection center ,and are in line with the national GB/T15166.2 standard and IEC60282 standard of the International Electrotechnical Commission.