Explosion-proof intelligent on-off switch for 10kV power distribution network

The invention discloses an explosion-proof intelligent on-off switch for a 10kV power distribution network, and the switch comprises a housing, one end of the housing is provided with two first conductive columns in a penetrating manner, the other end of the housing is provided with a second conductive column in a penetrating manner, the interior of the housing is provided with a mounting seat through a driving mechanism, and the mounting seat is provided with four arc-shaped grooves which are arranged at equal intervals. Arc-shaped conductive blocks are fixed in arc-shaped grooves in the two ends of the mounting base, a guide mechanism is mounted on the mounting base, the arc-shaped conductive blocks are connected with second conductive columns through second wires, a partition plate is mounted in the shell through a support, and conductive balls are mounted on the two sides of the partition plate through elastic mechanisms. The conductive ball and the first conductive column are connected ...

Method for treating high-germanium alum precipitation liquid

A process for treating high-Ge alum settling liquid generated during hydrometallurgical procedure of lead and zinc includes such technological steps as oxidation, neutralization and Ge settling in the condition that its pH value is 4.8-5.2, passing supenatant into the process of electrolyzing zinc, extracting from Ge and Fe slags in the condition that its pH value is 1-2,5, weak reduction, depositing Ge with tannin, calcining dregs, and passing it into the process of producing Ge. The Ge can be prevented from entering into electrolytic solution of zinc and reused.

Method for treating high-germanium alum precipitation liquid

Topological structure of power secondary system-power dispatching data network

The invention discloses a topological structure of a power secondary system service-power dispatching data network. The topological structure comprises a telecontrol service system, a relay protection information service system and a WAMS service system, wherein the telecontrol service system and the relay protection information service system are arranged in a real-time control area of the dispatching data network, and the WAMS service system is arranged in a non-real-time control area. Each service system transmits the information acquired by the substation to the power dispatching data network; a control area switch and a non-control area switch are arranged between the substation and the dispatching data network and are isolated from each other through a transverse firewall, the control area switch is downwards connected with an operation and maintenance gateway shutdown and upwards connected with a longitudinal encryption device, and the longitudinal encryption device is connected ...

RTDS-based primary and secondary fusion simulation system

The invention discloses an RTDS-based primary and secondary fusion simulation system, which comprises an RTDS simulator, an interface module and a fault database, and is characterized in that the RTDS simulator is respectively connected with a primary system and a secondary device to form a primary simulation system and a secondary simulation system, and the fault database provides a data interface for the primary simulation system and the secondary simulation system. And data conversion of effective fusion of primary and secondary systems is realized. The primary simulation system performs simulation analysis on a short-circuit fault of the primary system of the power distribution network, displays electrical quantity signals such as voltage and current during the fault, and provides an electrical quantity data source under the fault. And the secondary system receives the fault signal data of the primary system, and performs a protection action in combination with a related protection ...

Protection device of main transformer for 10kV power distribution network

The protection device comprises a mounting plate, a transformer shell is mounted at the top of the mounting plate, an oil storage tank and a transfer tank are mounted at the bottom of the mounting plate, a heat dissipation pipe is connected between the oil storage tank and the transfer tank, and a cooling fan used for blowing cold air to the heat dissipation pipe is mounted at the bottom of the mounting plate. An oil outlet pipe is connected between the oil storage tank and the transformer shell, an oil return pipe is connected between the transfer tank and the transformer shell, and an oil well pump and a filter are installed on the pipe section of the oil return pipe. According to the transformer, the interior of the transformer can be well cooled, the transformer can be protected, meanwhile, detection can be conveniently carried out, and fire extinguishing operation can be conveniently carried out in the first time.