City Power and Diesel Dynamo Transfer Switching Equipment

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Shekou
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TT OR LC
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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


       


City Power and Diesel Dynamo Transfer Switching Equipment


City Power and Diesel Dynamo Transfer Switching Equipment




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Q:What is the water pump population pre rotation, what harm?
Is the entrance of water flow in the formation of complex turbulent flow, flow direction, shock, vibration, easy to damage the front entrance device, such as vane impeller, shaft sleeve, sealing element. In order to prevent the emergence of the pre swirl phenomenon, usually the design will inlet than outlet diameter, try to make the entrance flow in laminar flow, according to streamline our design, in order to protect the safety and prolong the service life of equipment.
Q:Why does the water pump leak?
The sealing ring is invalid
Q:Why should the water inlet of water pump be fitted with reducer?
Increasing the pipe diameter can reduce the resistance loss along the path and reduce the suction vacuum of the pump! Before the inlet of the pump is a big diameter, when you reach the suction port, and the pump inlet diameter to be consistent, so the use of reducer joints!
Q:Why does the pump decay when connected in parallel?
When two pumps are connected in parallel, the flow rate is less than two of the rated flow of the pump. That is because of the loss of the pipeline and the incomplete sealing of the one-way valve (backflow) and the maximum capacity limit of the pipeline. The solution is to increase the diameter of the supervisor, check whether the one-way valve is completely sealed, whether the inlet and outlet pipe is blocked or not, and reasonably reduce the elbow and the valve.
Q:What is the reason that the water supply of pump is getting smaller?
1, the water pump screen plug, should remove the filter screen sundries.2, the use of lift is too high. Over the pump range, the pump should be adjusted to use height or replace the pump head.3, pump impeller plug or wear, should remove the impeller sundry. Replace the impeller if worn.4, pump outlet pipe blocked by debris, should remove the debris in the pipe outlet.5, diameter and pump does not match, replace the outlet pipe.6, the pump cover gap is too large, increased pump volume loss, should adjust the gap.7, pump body and pump cover leakage, should tighten the pump cover screw, make the pump body and pump cover close coordination.8, the pump speed is low, the use of voltage is too low. Should adjust the voltage to the rated value, replace the thicker cable or avoid peak use.9, water pump diving depth is too shallow, there is air intake, should adjust the diving depth. Pump running depth is not less than 0.5 meters.Yi Mai water pump to help you answer, I hope to help you
Q:Pump house should be equipped with those equipment and valves
The room should be full of equipment!
Q:What's the difference between a cold water pump and a hot water pump?
Cold water pump is generally packing seal, hot water pump is generally mechanical seal. If the cold water pump is used to transport hot water, the common trouble is that the shaft seal is easy to leak and the water pump is easy to damage. Generally in the design of building water supply and drainage, cold water pump and hot water pump can be selected according to the cold and hot water. Water supply and drainage design manual (common equipment) and pump manufacturers Water Pump samples can be found.
Q:Why does the pump head decrease when the pump flow rate increases?
When the power increases to a certain extent, can not be increased, so when the flow increases, the head can only be reduced
Q:Two pumps automatically switch start control circuit,
The puddle is full, the float switch is closed, and the relay J1 works to drive the first motor. The J1's work makes the intermediate relay 'J' work and locks itself, preparing for the work of the second machines. The water level is lowered to the required minimum position, the ball is broken, the motor is stopped and the motor is stopped. When the water level rose to the highest position again, the floating ball closed again, the relay J2 and self-locking relay J2 to drive second motors, instant intermediate relay are opened, when the water level again be reduced to the lowest position, float off, the motor stops working, stop by working in front of the intermediate relay. The whole circuit back to the original state. So that the two motors work alternately.It should be noted that the circuit diagram for simple to understand, only painted the control circuit, there is no main circuit, there is no missing phase, leakage, over-current and other protection, the actual installation needs to be installed. There is the role of time relay is to ensure that the relay J2 normal work, the intermediate relay is disconnected, so that the motor 2 does not occur wrong action, time relay can be set to a few seconds, or even less than a second. Intermediate relay can also be controlled by time relay, and its time is also set very small, so as to avoid J2 short time possible power supply.
Q:37KW how many contactors does the pump need to start directly?
37KW current is about 70 a few A, you can use CJ12-100 contactor, the answer is for reference only, the premise is that the motor limit voltage is 380V.

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