1. The frequency of the generator is the same as the system frequency.

2. The generator outlet voltage is the same as the system voltage, and the maximum error should be within 5%.

3. The phase sequence of the generator is the same as the phase sequence of the system.

4. The generator voltage phase is consistent with the system voltage phase.

The grid connection of the generator is connected by the switch of the generator outlet switch, and the generator and the power grid (it can also be considered that the power grid is a lot of users who need electricity), so that the electric energy source is continuously delivered. There are three conditions for generator grid connection: the frequency, voltage and phase of the generator must be consistent with the frequency, voltage and phase of the grid to be connected to the grid for power generation. (The three conditions are exactly the same as the same period; there is a slight deviation, but within the allowable range, it is called the same period.) The opposite of the grid connection is the disassociation. The disassociation is that you do not want to generate electricity, or the power generation through the opening of the exit switch. The machine is disconnected from the grid, which is called disconnection; when it wants to generate electricity, it will be closed at the same time. This is called grid connection.

Main grid connection steps

First, the generator grid conditions

1. The turbine is stable at 3000 rpm. Note that if the turbine cannot be stabilized at 3000 rpm, there must be no operation of the grid.

2. Check the generator measurement, protection, no abnormality in the metering circuit, and the synchronization and excitation circuit are correct.

3. The generator incoming trolley is in the test position and the generator outlet switch is in the cold standby state.

Second, the main operation steps of the grid connection (before the operation, the turbine joint jump and the de-excitation jumper plate are introduced, and other protections are all invested)

1. Excitation adjustment cabinet operation

1) Turn on the power of the excitation control cabinet, confirm that the operation-exit switch is in the exit state at this time, set the input-exit in the exit state, and PASS is in the exit state.

2) Put the excitation into a small car, put the excitation into the low-voltage side of the knife, and replace the magnetic switch.

3) Put the local-master control to the local, manual-automatically hit the automatic, run-exit to the run, set the input-exit to the input, the stator voltage will rise to the default value set, and slowly increase the excitation voltage. Until the stator voltage reaches the rated voltage of the generator, it is set to exit. In this process, it is necessary to observe whether there is any abnormal change in the sampling of each group of generators. If yes, stop the boosting, find out the cause, and directly jump off the magnetic switch if necessary.

2. The main operation of the same screen

Manual synchronization and automatic synchronization can be selected. Before this, the generator incoming trolley is hit to the working position and the 122 switch is pushed to the working position.

Manual synchronization

1) The distant place hit the spot

2) Manual Manual automatic hit

3) in the same period latching switch inputs

4) Select 1TK One line

5) a crude first hit the handle, on both sides of the grid voltage was observed any abnormal, if not, then hit fine handle, a manual rotation of the intermediate time period table pointer in a clockwise direction, as does not rotate, power adjustable local frequency, in the vicinity of 12 o'clock direction (+20 degrees), according to the manual closing automatic synchronization

6) Press the start synchronization button

Third, the steps after the grid connection

Check whether the current and voltage circuits of each group of generators are correct, and put all the handles on the screen to the exit state, put the input on the excitation adjustment cabinet - exit in the exit state, restore the turbine jump and de-excitation jump plate, check the generator Whether the current, voltage and power of each group are normal.

Air Purifier

10K PCS Ready HOT OEM Ozone Generator in Car Air Purifier Mite Anti Virus Filter Sterilizer Disinfecting

Features:

O-zone & Anoin Two Mode --- This advanced air cleaner purifier with Anion and O-zone 2-in1 air sterili-zation mode to fresh air and kill harmful mold decompose smoke, odor and formaldehyde, Keep the air fresh!

Anoin Mode Powerful and Enviroment Friendly --- Releas 8million/cm3 Negtive Ion captures up the airborne particles(PM 2.5), pet odor, smoke, kill harmful mold and other harmful gases. No chemical composition and filter requied. Effectively improving the air quality and Prevent harmful substances inhaled into the lungs.

Car Air Purifier,Car Air Cleaner,Car Air Purifier Ionizer,Best Air Purifier For Car

Jiangmen soundrace electronics and technology co.,ltd. , https://www.soundracegroup.com