City Power and Diesel Dynamo Transfer Switching Equipment
- Ref Price:
-
- Loading Port:
- Shekou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 unit
- Supply Capability:
- 500000 unit/month
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In order to simplify system maintenance and improve its liability and safety, presents PC series control box for solar pumping system based on years of research and experiments. The control box combines functions of solar pumping inverter and solar combiner box to simplify system wiring and operation as well as lowering costs. For solar pumping system combined with control box, power input is then backed up by city grid if the solar irradiation is not enough. Also, the special design improves system reliability. Optional reactors coupled with Control Box are suitable for scenarios where distance between Control Box and pump is far away.
Technical Features
1. The box contains combiner function with multiple connection ports for PV array and reverse-connection protection;
2. Thunder protection;
3. Fuse specifically designed for solar applications to withstand DC1kv, greatly improve system reliability
4. Solar DC breaker to improve DC withstanding voltage and system reliability;
5. IP54 protection grade, suitable for both indoor and outdoor installation;
6. Optional reactor to satisfy the long distance electricity transmission (200 meters and above);
7. Switch to different power sources (grid/diesel) if solar irradiation is not enough
Product Specifications
Solar Pumping Control Box Product Specifications | ||||
Model | Suitable Inverter | Grid Input | Dimension （mm） | Weight （kg） |
PC-L2 | PB750L - PB2200L | / | 600*650*300 | 30 |
PC-L2/A | PB750L - PB2200L | Single Phase 220V ~ 250V | 600*800*300 | 40 |
PC-H4 | PB3700H / PB5500H | / | 600*800*300 | 40 |
PC-H4/A | PB3700H / PB5500H | Three Phase 380V ~ 415V | 700*900*300 | 50 |
PC-H6 | PB7500H / PB11KH | / | 600*800*300 | 40 |
PC-H6/A | PB7500H / PB11KH | Three Phase 380V ~ 415V | 700*900*300 | 50 |
PC-H8 | PB15KH / PB18KH | / | 600*800*300 | 40 |
PC-H8/A | PB15KH / PB18KH | Three Phase 380V ~ 415V | 700*900*300 | 50 |
- Q:The flow of the pump will be reduced, the speed will change, the power of the motor will change?
- Water pump flow rate, speed will not change, the power of the motor will change in general.Different types of pumps have different flow power curves. Only the most common centrifugal pump is used as an example to illustrate the relationship between the flow rate and other pump parameters. The typical centrifugal pump flow power curve is shown in the P-qv curve (red line) shown below.Turn left and turn right |According to the flow power curve, it can be seen that with the increase of the flow rate, the power increases linearly, and the power decreases linearly with the decrease of flow rate.In fact, the pump shaft power P= P gQH/ (1000 K), including H: head, unit m, Q: flow unit m3/s, ETA: for the efficiency of the pump, general 0.7-0.85, P: shaft power, unit kW, K: matching coefficient, small power is 1.25, P: work is like a water medium density.Therefore, for a specified pump, the power is proportional to the flow theoretically. In fact, as the flow rate changes, the efficiency of the pump changes, so it can only be close to the positive proportion.Running water pump speed generally depends only on the pump, power (motor, diesel, etc.) speed, the flow of water generally can not affect its speed. But in the design of pumps, the flow is related to the speed, and other design parameters remain unchanged, the pump speed is high, the pump flow.
- Q:For what reasons can water pump in car break? Thanks
- The 2.7 and it's water pump are simply a problem waiting to happen. Poor design.
- Q:I drive a 99vw jetta and the coolant was leaking from it i took it to a repair shop they said the water pump was bad and that the seals on the water pump where bad that was defiantly where the coolant was leaking from. I replaced the water pump and drove my car this weekend no troubles, then this afternoon my coolant light came on and i put coolant in my car and it just started trickling out i called the repair shop they said it may just be a loose hose or clamp, is this true or am i looking at something worse than the water pump that has to be replaced?? or would that issue have already came up when they where looking for where the leak was coming from before it was repaired? please help
- The pump may have indeed been bad. Did the shop put on the new pump or did you do it yourself? If it was done by the shop, take it back and make them fix it correctly. You have already paid them for the work. If you did it yourself, it should be fairly easy to spot where the leak is coming from. It is also rare but possible that the pump you put on was bad out of the box from the parts store. Not likely...but slim possibility. Hopefully it is just a loose clamp or hose.
- Q:i heard a water pump should not be able to move.is that correct? It is a 1995 RM250. there is no clogging in the pipes coming from the radiators with 2 fingers require force to move them but with the 1 finger it requires no force to move a couple Centimeters.
- The water pump is turned by the primary gear on the crankshaft. When you were turning the water pump - the crankshaft was moving the piston up down in the cylinder. The couple of centimeters of movement is just the play between the gears - that's normal.
- Q:Water pumps are always pumping water, what's the matter?
- Cause analysis of water pump without waterThere is air in the inlet pipe and pump body(1) before the water pump is started, the water is not filled enough. Sometimes it seems that the water has been discharged from the vent hole, but the pump shaft is not rotated. The air is completely discharged, resulting in a small amount of air remaining in the inlet pipe or pump body.(2) in contact with the water pump inlet of the horizontal application of reverse flow direction, fell more than 0.5% slope, connect one end of the highest import pumps, do not completely level. If the upward tilt, the intake pipe will retain air, reducing the water pipes and pumps in the vacuum, water absorption.(3) pump packing has been used for long-term wear or packing pressed too loose, discharge gap caused by the large amounts of water from filling with the shaft sleeve, the external air gap into the pump from the inside, affected the water.(4) because of the long latent water and the corrosion of the pipe wall, the water inlet of the water inlet is constantly dropping. When the holes appear above the water, the air enters the water inlet pipe from the hole.(5) there is a crack at the bend of the inlet pipe, and there is a small gap between the inlet pipe and the water pump, which may cause the air to enter the inlet pipe.
- Q:What are the conditions for the series and parallel connection of the pumps?
- Parallel pumps: the pump is required to lift the same. This effect is to increase traffic.Pumps in series: requirements are similar to the flow of water pumps. This allows you to increase the total head and recommend adding small pressure tanks during the series connection.
- Q:i hear water swirl in my dash board when i take off and when i reverse, i heard its the water pump pushing water through the heater core, but how can i fix it.?
- Have radiator flush done. Low or air in system
- Q:My car is overheating and i don't know why just trying to rule out as many options as possible.Things it is most likely not: blown gasket/cracked head, both replaced 2 years ago and no tell tale signs I will be doing a block test soon, thermostat replaced it and put the old one in hot water and it opened, hoses replaced with new one two years ago, no leaks pressure test a few days ago. Things yet to be ruled out The radiator being clogged or not allowing good airflow, water pump impeller failure.
- If the water pump impeller fail your heater will not work properly because the coolant is not circulating .If coolant is low or restricted heater core will result more or less the same condition.However overheating can be cause by timing too.Blown head gasket can be verify with compression test.Water pump can leak while you are driving and may leave little to hard to detect trace of leak.It can pissing for a few seconds and stop for a while. Do not over look the pressure cap.It can cause overheating symptoms boiling over the recovery tank.Plug rad will definitely cause that.The cooling fan -if electric can be faulty. Some has a module or relay activate by a temperature sensor.Some has a temp.sensor sending signal to the COMPUTER and the computer turns the e-fan on or off.If any of those components is faulty.you can have overheating problems.check it out
- Q:My water pump is losing pressure slowly even though no water is being used. Your help is appreciated. Thank you.
- Water Pump Loses Pressure
- Q:have a leak in water pump and need to replace.It is easy or very hard
- the basic garage man can replace it but becareful the timing belt runs the water pump on the car so good luck on that
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City Power and Diesel Dynamo Transfer Switching Equipment
- Ref Price:
-
- Loading Port:
- Shekou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 unit
- Supply Capability:
- 500000 unit/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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