ZKW8-12 type high voltage prepayment device
A prepaid, high-voltage technology, applied in the direction of high-voltage air circuit breakers, high-voltage/high-current switches, electrical components, etc., can solve the problems that the load control terminal and the charge control meter cannot work normally, and cannot realize charge control.
Pending Publication Date: 2019-05-10
威胜能源技术股份有限公司
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- Application Information
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Problems solved by technology
If the mechanical structure of the existing ZW8-12 switch is directly used, the metering transformer cannot take power to work after the ZKW8-12 switch is opened, so that the negative control terminal and the charge control meter cannot work normally, and the cost control cannot be realized. control function
Method used
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[0021] Such as figure 1 As shown, the ZKW8-12 type high-voltage prepaid device disclosed in this embodiment is a three-phase common box structure, including a box body 1, a ZKW8-12 type switch 2 (for the convenience of description, the ZKW8-12 type switch is hereinafter referred to as Referred to as switch), metering transformer 3, linkage mechanism 4.
[0022] combine figure 2 and image 3 It can be seen that the switch 2 is equipped with a vacuum interrupter 21, an air composite insulator 22, and an isolation switch 5 is installed.
[0023] The metering transformer 3 adopts a combined transformer with a fully insulated integrated structure.
[0024] The switch 2 and the metering transformer 3 are arranged up and down in the box body 1, the metering transformer 3 is located directly below the switch 2, and the phase sequence and incoming and outgoing lines of the metering transformer 3 are consistent with the switch 2.
[0025] The primary circuit is composed of composit...
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The invention discloses a ZKW8-12 type high voltage prepayment device, comprising a ZKW8-12 type switch and a metering mutual inductor, the ZKW8-12 type switch is a ZW8-12 type switch provided with amatched negative control terminal, a matched fee control electricity meter and a matched isolation switch, the metering mutual inductor is a combined type mutual inductor, the isolation switch is mounted at a static end of the ZKW8-12 type switch, and a mechanical interlocking mechanism is arranged between the isolation switch and a movable end of the ZKW8-12 type switch; after the ZKW8-12 type switch is switched off, and the metering mutual inductor can get electricity from the static end of the ZKW8-12 type switch and operate normally, so that the negative control terminal and the fee control electricity meter respectively can operate normally, a fee control function of the prepayment device after the ZKW8-12 type switch is switched off is realized, the prepayment device can realize thefee control function when a high-voltage switch is switched on or off, and the defect that the fee control function can not be realized after the isolation switch is switched off as the isolation switch is mounted at the movable end of the high-voltage switch in the prior art is overcome.
Description
technical field [0001] The invention relates to a high-voltage prepayment device, in particular to a ZKW8-12 high-voltage prepayment device. Background technique [0002] Such as figure 1 As shown, in the scheme of the ZW8-12 type switch operating in the power grid with isolating switches, all the isolating switches are installed on the movable end of the ZW8-12 type switch, which is caused by the structure of the ZW8-12 type switch itself. It is determined that the equipped transformer mainly protects the line, so whether the incoming line of the transformer takes power from the static end or the moving end of the ZW8-12 switch, it can protect the running line. [0003] Wasion Electric Co., Ltd. has developed a supporting intelligent remote control terminal for the ZW8-12 switch. The model is named ZKW8-12. The static terminal of the switch takes power, and when the distribution network is running, the side of the isolation switch is used as the incoming line side of the ...
Claims
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IPC IPC(8): H01H33/00H01H33/02H01H33/52
Inventor 彭和敏冯喜军邓虎贾俊谈赛唐奇吕绍华付凯兴
Owner 威胜能源技术股份有限公司