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Products
Generator set fully automatic and cabinet


Detailed Description:

Manual and cabinet: A system that uses the traditional lighting method to parallel. Semi-automatic parallel cabinet: Manually operate the generator set to start and stop, manually operate the switchgear of the cabinet system and close the switch, and automatically complete the parallel and disconnect control.

Manual and cabinets: using the traditional lighting method and machine system. Semi automatic and manual operation of generating unit cabinet: open, shutdown, manual operation and cabinet system, close kin, automatic machine, islanding control.

Automatic well cabinet: Automatic paralleling and disengaging of parallel and parallel system by the start and stop of the unit with and without the control of the city power, and a parallel system that automatically distributes the load. Fully automatic parallel cabinet: Based on the automatic parallel cabinet, PLC is used to complete the automatic input and parallel operation of multiple units, automatic dequeuing, and the logical function of shutdown (often called peak shaving). Three remote parallel system: a special single-chip system is used to complete the parallel system of the cabinet and the generator set and the PC to communicate with each other.

Automatic well cabinets: electricity has no control unit open, stop and machine system with automatic machine series, automatic load distribution and the system. Full automatic and cabinet: in automatic and cabinets on the use of PLC to complete the automatic input and multiple units and machine, automatic disconnection, and shutdown logic function (often called peak). Three remote and machine system: uses the special-purpose single-chip system, complete and cabinets and generating units with PC communication connection and the system.

Product features: simple structure, beautiful appearance. The biggest advantage is that the operation is simple, and the electrician who has never touched the generator set or the cabinet can operate the cabinet in the shortest time. Complete functions, with over-current and over-voltage reverse power protection. Machine fault protection and other functions, all parameters of the engine (such as: water temperature, oil pressure, exhaust temperature and other parameters and display of all fault parameters) are connected to the machine by the 485 communication and the cabinet is strictly implemented in accordance with GB / T2820 standard.

Product features: simple structure, elegant appearance. The biggest advantage is easy to operate, can in the shortest time to the Church never contacted the generator or electricians and cabinets and cabinet. Complete function, has the overcurrent and overvoltage of reverse power protection. Machine fault protection function, the engine of all parameters (such as: water pressure exhaust temperature and all the fault parameter display) with 485communication in the machine cabinet connected to and strictly according to GB / T2820 standards.

Generator and cabinet performance

Generators and cabinet performance

A: Automatic control of parallel machine: Manually start one of the motors, (if necessary, two can be started at the same time, and then power is supplied after the machine is parallel). When this machine is fully loaded, the next one will automatically start and send power. Automatic sharing, when the load drops, the generator can automatically exit one of them to stop, after 30 seconds of cooling operation, it will automatically stop and return to the automatic standby standby state. Powered by one of them.

A: automatic control and machine: manual initiation Apart a send (motor, when necessary, may two started at the same time, and the machine to send electric) when the machine is full, the next start automatically and machine transmission, automatic power equally , when the load decreases after, the generator can be automatically out of one station stop, after 30sec cooldown operation after the automatic shutdown, restored to the automatic standby state. By which a power transmission.

B: Manual selection control: The generator can be operated manually on the cabinet, and automatic and manual paralleling can be used. The number of start-up units can be controlled manually or by the load.

B: artificial selection control: that can be artificially and cabinet operation starting generator, available automatic and manual and machine, number of operating units can be manually controlled, can also load control.

C: Protection function: Over current protection, reverse power protection, automatic tracking synchronization, quasi-synchronous closing and parallel protection.

C: protection function: over current protection, inverse power protection, automatic tracking synchronization, synchronization closing machine protection.

Function and use of automatic parallel cabinet

Function and use of automatic and cabinets

One: Introduction to Parallel Cabinets

A: introduction and cabinet

GX series fully automatic or automatic parallel device is a special device designed and manufactured for diesel generators in parallel operation. Suitable for parallel operation of 2 or more diesel generator sets with electronic governor. The core devices of this device use the synchronizers and load distributors of the US GAC company, the PLG (optional) of Siemens or Mitsubishi, the Japanese ORMON and domestic high-quality electrical components and imported or domestic brand air switches. This device has the features of complete functions, reliable operation and convenient maintenance.

GX series automatic or automatic devices and machines are designed for parallel operation of diesel generator set design, manufacture special equipment. Applicable to 2 or more bands of electronic speed governor for the parallel operation of diesel generating set. The device 's core device is the United States GAC synchronizer and load distributor or Mitsubishi Co, Siemens PLG (optional), ORMON Japan and China-made high-quality electrical components and imported or domestic brands of air switch, by professional engineers to optimize the design from, the device has the advantages of complete functions, reliable operation, convenient maintenance etc ..

2: Function introduction

Two: functional description

Automatic paralleling: When the unit is successfully started, it will send power to the parallel cabinet. When paralleling is required, the synchronizer will detect the signal and apply the ESC. The frequency and phase of the parallel unit will be automatically adjusted to match the bus, and a parallel signal will be issued. The air switch is closed and connected.

Automatic machine: when the unit after a successful start-up, power transmission to and cabinets, and machine, which includes a synchronizer detection signal, action will be electrically adjustable, and set the frequency and phase of automatic regulation and bus line, a signal role and machine, air switch, and closing machine.

1 . Automatic load distribution:

1automatic distribution load:

When two or more units are connected in parallel, the units start to operate with load. The load divider will act as an ESC and distribute the load according to the power of the unit.

When2 or more units and aircraft after the start, unit load operation, load distributor will be electrically adjustable, according to the unit power, proportional distribution of load.

2 . Peak shaving: (alternative option)

2peak: (optional)

When two or more units are operated in parallel, when the load changes, the number of operating units can be increased or decreased according to the load rate. Generally, when the load rate is lower than 35%, the units will be decommissioned. When the load rate is higher than 80%, the units will be started and the units will be connected in parallel to make the units operate in the most economical state. This type of function requires the self-starting function of the generator set to be completed.

When2 or more machines in parallel operation, changes in the load, can according to the load rate of increase or decrease in size, the number of operating units. Generally when loading rate is less than 35%, the splitting unit, load rate is higher than 80% will start, juxtaposed units, in order to make the operation of the unit in the most economic state. The functional requirements of generating unit has since the launch of the function, can be completed.

3. Protection functions: A: synchronous protection; B: reverse power protection; C: overcurrent and short circuit protection (completed by the protector); D: overvoltage and undervoltage protection (optional).

3 protection function: A: synchronous protection; B: reverse power protection; C: over current and short circuit protection (by protector complete); D: over-voltage, under-voltage protection (optional).

Indicators: A: voltmeter; B: ammeter; C: frequency meter; D: power meter; E: power factor meter: F: synchronization indicator (for parallel observation);

Indicating instrument: A: B: current voltage table; table; C: D: power frequency table; table; E: power factor table: F: synchronous indicator (parallel observation);

Structure description and technical parameters

Three, the structure and technical parameters

1 . Structure description: a. The frame adopts GGD cabinet, the surface is plastic-sprayed, and the color is international gray. b. The main bus adopts TMR copper bus, which is designed according to full load and is designed in the middle and upper part of the cabinet. The cable at the end of the generator set is connected to the air switch from the lower end of the cabinet.

1Structure: a by GGD cabinet frame, surface spray processing, color for the international gray. B. The main line by using TMR copper bus bar at full load, design, design in the upper part of the cabinet body. Generator end of the cable , from the lower end is connected to the air switch cabinet.

2 . Technical parameters: a. The voltage of the generator set: 220V AC ~ 480V AC, more than 480V requires special order. b. Single power of generator set: 90 ~ 3000KW. c. Frequency: 50Hz or 60Hz. d. Wiring method: Y is connected to three-phase four-wire. e. Synchronous phase difference bits: 1 to 25 0, generally set to 10 0. f. Load sharing difference: ± 5% adjustable. g. Reverse power action: 5 to 20% adjustable. h. Positive power action: “NO” 20 ~ 100% adjustable. Generally set to 80%. “OFF” 0 ~ 80% adjustable. Generally set to 30-35%.

2technical parameters: a generator voltage: 220V AC-480V AC, over 480V need special order. B. Power unit power: 90 ~ 3000KW. Frequency: 50Hz or 60Hz C. D connection: Y connected three phase four line. E. Synchronization is : 1 ~ 250, generally set at 100. F. The load distribution difference of: ± 5% adjustable. G. Reverse power action: 5 ~ 20% adjustable. H. Positive power action: "NO" from 20 to100% adjustable. General settings for 80%. "OFF" 0 ~ 80% adjustable. General settings for 30-35%.

3. Quality guarantee: 12 months from the date of delivery. All damage caused by the quality of manufacturing components shall be repaired or replaced by our company. 4. Installation and commissioning: 1. The cabinet should be installed indoors and on the concrete seat with channel steel buried. The cabinet should be no less than 0.8m away from the wall. The cabinet should be reliably grounded. 2. The cables connected to the generator set and the cables output to the load should be firmly connected and meet the requirements of the electrical engineering code. 3. The generator set should first perform a no-load and load test on a single unit to ensure that the unit performs well and meets the requirements. Then proceed to the next parallel debugging. When stand-alone operation, the generator AVR needs to be connected with a differential adjustment component, so that the voltage adjustment rate is about -2.5%, and the voltage and frequency adjustment is sensitive. 4. Check the phase sequence of each generator set to make them the same. 5. Connect the control line between the generator set and the cabinet in accordance with the requirements of the drawings. 6. Start each generator set separately, send power to the cabinet, and adjust the voltage and frequency of the generator set, which should change uniformly. Test the functions of emergency stop and fault trip, which should be reliable. 7. Parallel operation and commissioning: After the single-machine commissioning is completed, the unit can be unloaded, and the voltage and frequency can be adjusted so that the circulating current of the unit after the parallel operation is 0 or less than 3% of the rated current. 5 minutes to run with load, with a load rate of about 30-50%, adjust the load splitter to distribute the load proportionally, adjust the difference adjustment link to balance the power factor of the unit, and the load distribution remains unchanged for about 15 minutes. Load, decommissioning. Then carry out the peak shaving test, select the host, start the host, send power, and bring the load to about 80%. The standby machine should be started, automatically paralleled, and automatically distribute the load. When the reduced load is less than 35%, the standby machine should be decommissioned and shut down.

3 quality assurance: since the factory from the date of 12 months. All because of manufacturing assembly quality caused by damage, by the company to repair or replacement. Four, installation commissioning: 1, the cabinet should be installed indoors, and the buried channel steel concrete base, the cabinet from the wall not less than 0.8m, the cabinet should be reliable grounding. In 2, generating units access cable and output to the load cable should be firm, and in accordance with the requirements of electrical engineering. In 3 , generating units should first single to do no-load and load test crew to ensure good performance, to meet the requirements. Then the next step and debugging. Single unit operation of generator AVR need to access adjustment element, so that the voltage regulation rate is about -2.5%, and the voltage, frequency sensitive adjustment. 4, check the generator phase, should make it the same. In 5, generating units and the cabinet between the control line connected ac cording to the drawing requirements. 6, start the generator, power transmission to and cabinets, regulation of generator voltage, frequency, should be uniform change. Test of emergency shutdown and fault tripping function, action should be reliable. In 7, and machine operation : stand-alone debugging is completed, can be unloaded and machine, and adjusting the voltage and frequency, and machine unit circulation is 0or less than 3% of rated current, unit and the machine is stable, no circulation operation of 3- 5 minutes can be run with load, with about 30-50% load ratio, load regulation distributor to make load proportional allocation, adjusting differential link, make the unit power factor balance, running about 15minutes without a change of load distribution, load, splitting. Then the load test, selection of host, starting the engine, transmission, load to about 80%, preparing the machine should start, automatic machine, automatic distribution of load. When decreasing the load of less than 35%, preparing the machine should be out of shutdown.

Five, operation

Five, the use of operation

(A): Automatic parallel operation: 1. Start, parallel: start the generator set, close the air switch (if any) of the generator set, send power to the cabinet, adjust the frequency and voltage to make the voltage of the two units consistent (Not exceeding 5V) and the frequency (not exceeding 0.1Hz). The unit should automatically parallel within 30 seconds. After the parallel is successful, turn the parallel selection switch to the 0 position. 2. Decommissioning: When the load drops below 35%, the decommissioning button of the standby unit can be decommissioned. The empty machine will stop after 3-5 minutes of operation, and the other unit can be operated alone or shut down. 3, fault shutdown: When the unit appears high water temperature, low oil pressure and other fault signals are sent to the parallel cabinet, the parallel cabinet is decommissioned, the fault indicator lights. At this time, the load will be added to the other unit. If the load is too large, the running unit will stop. In the event of a fault shutdown, the load should be immediately reduced to the extent that one unit can afford. Stop the machine and find out the cause before putting it into operation.

(a): automatic and machine operation: 1, priming, and machine: starting generator, closed turbine air switch (if any), transmission to and cabinets, adjusts the frequency and voltage to2voltage consistent units (not more than 5V) and frequency ( less than 0.1Hz). 30 seconds set should be automatically and machine, and after the success of the machine, and machine selection switch to0 archives. In 2, splitting: when the load is reduced to below 35%, according to the standby unit brake button series, an empty machine running3- 5 minutes after shutdown, the other1 units can be stand-alone or gate stop. 3, breakdown: when the unit is high temperature, low oil pressure fault signal is sent to and cabinets, and cabinets series, fault indicator light. When the load will increase to 1 units, such as load will lead to operational units shutdown. Fault shutdown, should immediately load is reduced to 1units can afford. Failure stop and identify the cause and then put into operation.

4. Emergency shutdown: When there is a large circulation in the parallel operation of the two units and it cannot be eliminated, they should be disconnected. When the current, voltage and frequency fluctuate greatly, you can press the emergency stop button to release the train and stop.

4, emergency stop: 2 units and machine running large circulation, and can not eliminate, should switch series. Current, voltage, frequency fluctuation, can press the emergency stop button out and stop.

(B): Peak-shaking operation: Select the host, start the host, send power, and load. The host group determines the parallel or single operation according to the load.

. (two): peaking operation: selected host, starting the engine, transmission, load, the host group according to the load size and machine or stand-alone operation .

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