Tracking coordination switching system and method between excitation regulators

The invention belongs to the technical field of excitation regulators, and particularly relates to a tracking coordination switching system and method between excitation regulators. Comprising two sets of excitation regulators, namely a first excitation regulator A and a second excitation regulator B. Switching functions of the first excitation regulator A and the second excitation regulator B are completed by respective data processors, self-checking modules, digital quantity output modules and digital quantity input modules. The method has the advantages that when the two excitation regulators are normal, the slave excitation regulator tracks the master excitation regulator, when the master excitation regulator breaks down and the slave excitation regulator is normal, the slave excitation regulator is automatically switched to the master excitation regulator to operate, and the overall function is maintained. When the slave sleeve excitation regulator is normal, the slave sleeve excitation ...

Instrument control human-factor-preventing training device of nuclear power station

The invention belongs to the technical field of instrument control, and particularly relates to an instrument control human-factor-preventing training device of a nuclear power station. The training device comprises a PC machine, a cabinet and an external recorder; a PLC device, an isolating clamping part, a potentiometer and a power supply are arranged inside the cabinet, and the power supply supplies electricity to a PLC device power module and the isolating clamping part through an air switch. The instrument control human-factor-preventing training device resolves the problem that instrument control maintainers can only make contact with the PLC device on a nuclear power station site by means of the chance of fault maintaining and therefore improvement on the maintaining skill is not facilitated in the prior art; a simulation chance is provided for the instrument control maintainers to make contact with the PLC device, the human-factor-preventing skill of the instrument control maintainers ...

Immersion type thin plate and frame film filter

The invention relates to a soaking thin-walled plate frame membrane filter, which consists of one or a plurality of thin-walled plate frame membrane filter sheets and an aeration device below the filter sheet. The membrane filter sheet consists of a thin-walled panel, a conduction part and a filter membrane, all of which are bonded together. The invention is characterized in that at least two support strips are respectively arranged along two sides to form an asymmetrical framework on one surface of the invention, the vertical asymmetrical frames pressures each other closely to form a membrane chamber and two thin metal or plastic reinforcing strips are further arranged along two sides to be used as support. The soaking thin-walled plate frame membrane filter provided by the invention can be soaked in an original/waste sink and filters impurity in water, the aeration device is used for blocking reduction of the membrane and therefore, stable water production, bacteria filtering and reduction ...

Excitation regulator for emergency diesel generator of nuclear power plant

The invention belongs to the technical field of generators, and particularly relates to an excitation regulator for an emergency diesel generator of a nuclear power plant. Comprising a working power supply module, an analog quantity sampling module, a control calculation module, an excitation current adjusting module, a digital quantity input module and a digital quantity output module. The excitation regulator has the advantages that the excitation regulator can receive an external control signal to start or stop operation, the excitation current of the generator can be accurately regulated according to the deviation between the set value and the actual value of the voltage of the generator in the operation period, and then accurate closed-loop regulation of the output voltage of the generator is achieved.

Nucleic acid oral liquid for animals and its preparing process

An oral liquid of animal nucleic acid is prepared from animal nucleic acid IRNA, assistant and special water by the ratio of 6-25 ten thousand unit:10-50g:1000g through stirring special water while adding animal nucleic acid IRNA and assistant. It can be used to prevent cancers and diseases. Its advantages are high effect, no toxic by-effect and convenient application.

Immersion type thin plate and frame film filter