Wdl off-Circuit Tap Changers for Transformers

Quick DetailsPlace of Origin: China (Mainland)                        Brand Name: XINCHENG Usage: Power Transformer or Others                     Model Number: WSL Max. Current: 2000A                                  Rated voltage: Under 110KV Application: Voltage regulator                          Type: non-excitation tap changer Function: Voltage Regulating                            Phase Type: Three Grade No.: 3 - 10 or others                             Regulating Position: Central or Others structures: vertical type                                Supply Ability: 3500 Set/Sets per Month     ApplicationWSL cage vision off circuit tap-switch with positive-negative regulating Functions and Application Type WSL off-circuit tap changers apply to single pole or three poles oil immersed transformers with the max. rated through current of 300A,600A,800A,1000A,1200A and highest voltage for equipment of 12 kV, 40.5kV,72.5 kV and 126kV. And the operating position is such: model A is 5 ; mode B is 11. The rated frequency is 50Hz~60Hz. 1 Normal service condition of the tap changer 1.1 The temperature of the transformer oil shall be less than 100, more than -25 1.2 The tap changer shall be kept in the place with ambient temperature from -25~+40, and the relative humidity shall be less then 85%. 1.3 Vertical inclination of the tap changer should not be over 2% when it is installed on the transformer. 1.4 The tap changer shall be operated in areas without any corrosive or explosive gases.     The specification of the product is rated voltage 110kV(highest voltage for equipment 126kV) and below, rated current 2000A and below with various regulating methods can apply hand-operation and power-driven on the cover or side of the transformer. WSL Series off-circuit tap changer is used for oil-immersed transformer with on-load tap changer. It is usually of cage type structure. The switch transition type is variable with its inner structure. It has linear regulating , single-bridge stridden over connection, double-bridge stridden over connection, Y-Δ transition, series-parallel connected transition, positive or reverse regulation ate. This tape changer is classified into two type, one called tank head type, the other called bell covered type. The operation method can be classified into two type, one is handled on the tank head or to the grounding, the other is driven with motor, They are used for power transformer, rectification transformer or furnace transformer in following specification range, rated frequency with 50Hz or 60Hz,highest voltage for equipment with 40.5kV,72.5kV and 126kV,rated current with 250A-2000A.This type of tap changer can only be operated in transformer under non-energized condition. The WSL cage vision off circuit tap-switch with positive-negative regulating is used for oil-immersed off-load voltage-regulating transformer, with vertical and horizontal cage structure. According to different inner structures, the connection mode includes linear regulation, single bridging, twin bridging, Y- △ conversion, serial-parallel conversion, positive-negative regulation. Installation way can be tank-cover-type and bell-type. The tap changer can be widely applicable to power, rectification, furnace and other transformers with rated frequencies of 50Hz and 60Hz, rated voltages of 35kV, 66kV and 110 kV, and rated currents of 125A~2000A. This tap changer must be operated under off-circuit status of transformer Non-excitation tap switch applies to oil-immersed transformer with 50Hz or 60Hz of rated frequency. In case of no excitation in transformer (i.e. no winding is charged), the switch can be operated manually or electrically to change the tapping position and further to change the transformation ratio, and by this means, secondary voltage can be adjusted or stabilized. This type of tap changer is comprised by electric, drive me chanism, tap changer body and electric controller with two kinds of specifications standing-type and horizontal-type it is suitable for oil-immersed furnace transformer with rated voltage 40kV and below, rated current 630A and below, they must be working under non-energized condition, it can be operated by electric drive or handle drive.    Feature Product features of round type electrical device: 1)Transformer cover's round installation opening is smaller and power balance, so its sealing function is better than that of the square's. 2)Reduce the complex components will make the structure more compact and enable high transmission reliability. 3)The round electric operator operates freely and steadily with high quality of gear shift and small noise. 4)Round series electrical device's voltage regulating can reach 30 grades and above which leave more space for transformer designing. It's superior to the others. 5)This patent round electrical switch is in simple structure, advanced function and lower costs. It is economical and safe!      Structure This type off-circuit tap changer consists of