How big a cable is needed for a 500 kilowatt generator in a small hydroelectric plant?

Introduction How big a cable is needed for a 500 kilowatt generator in a small hydroelectric plant? It is not specified whether it is a high voltage generator or a low voltage generator. It is based on low voltage (three-phase 400 V). generator It is recommended that

How big a cable is needed for a 500 kilowatt generator in a small hydroelectric plant?

It does not say whether it is a high voltage generator or a low voltage generator. This is a low voltage generator (three phase 400 V). It is recommended to use a cable.

< p>A 500 kilowatt generator with a current of about 1,000 amps is laid in the air (ambient temperature 40°), the transmission distance is less than 150 meters. For larger currents, it is more appropriate to use single-phase, single-conductor cables:

1. Use YJV 0.6/1kV 1x630 cross-linked polyethylene insulated PVC sheathed power cable (if flame retardant is required). , Add "ZR-" in front of the model, i.e. ZR-YJV 0.6/1kV 1x630

3× (YJV 0.6/1kV 1x630) + 1× (YJV 0.6/1kV 1x630) , a total of 4 cables. Noticed. : When laying cables in the air, each cable must be separated by twice the outer diameter of the cable, and the cables cannot be stacked together

2. parallel core cables, use a cable of aPVC sheathed power supply insulated with cross-linked polyethylene YJV 0.6/1kV 1x240 (if flame retardant is required, add “ZR-” in front of the model, i.e. ZR-YJV 0.6/1 kV. 1x240

3×[ 2 × (YJV 0.6/1kV 1x240)] + 1 × [2 × (YJV 0.6/1kV 1x240)], a total of 8 cables. Please try to separate. the cables and do so do not stack them together, which promotes heat dissipation from the cables themselves

In addition, the generator can be connected to a larger galvanized flat iron

p>

What size generator should be used for general household use?

The power of the machine is usually 1900 W. There are four types of automobile generators: 1. Ordinary alternator: also called silicon rectifier generator, which requires a voltage regulator when used 2. Integrated alternator: the generator and regulator are transformed into an integrated generator For example, the Buick car engine is.equipped with a CS type generator, including three different models: CS-121, CS-130 and CS-144; . AC Generator with Pump Machine: The pump installed in the alternator with a pump is a vacuum pump, not a vacuum booster pump. Vacuum booster pump is used in car brake system. 4. Brushless alternator: a generator that does not require a pump. brushes.

Generally, a 5KW generator is sufficient for domestic use. If it can be reduced by 2KW for some electrical appliances, it will be enough

The specific calculation method based on. Common electrical appliances are:

1. Power level of common household appliances:

Microwave oven 600----1500 watts

Rice cooker 500- ---1700 watts

Induction cooker 300----1800 watts

< p>Electric wok 800----2000 watts

Electric water heater 800-- --2000 watts

< p>Refrigerator 70----250 watts

Electric heating 800----2500 watts

Electric oven 800----2000 watts

Sterilizer 600----800 watts< /p>

Electric iron 500- -- -2000 watts

Air conditioner 600----5000 watts

Air conditioner 1000W

Micro oven waves 1000W

Electric cooker 1000W

Electric water heater 1000W

Vacuum cleaner 800W

Hair dryer 500W

500W electric iron

500W washing machine

200W TV

200W computer

140W kitchen hood

100W fan

0.5W flashlight< /p>< p>50-100W lighting

2. Calculate the power of electrical appliances that must be used during a power outage

250W refrigerator

TV. 200W

200W computer

50-100W lighting

The starting battery box is a compressor, and the starting current is calculated as 2.5 times , so the power of the refrigerator generator is 250*2.5=625W

Thus, the powerminimum of a domestic generator is 200+200+100+625=1125W, which leaves some power available, so a 2KW generator is enough!

3. Calculating the power of commonly used electrical appliances

Some families can add air conditioners, electric water heaters and other equipment to the necessary electrical appliances:

Because air conditioners are tablets, the starting current of the air conditioner is also calculated based on 2.5 times. A 1000 W air conditioner requires a generator power of 2500 W. Plus the 1000 W power of the electric water heater, plus the 2000 W power of the essential original electrical appliances.

So commonly used generators in home appliances are 1125W + 1000W + 2500W = 4625W, which leaves a bit to spare. 5KW generators are enough!

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