The automatic paralleling and grid-connected control technology of the diesel generator set and the communication technology that realizes the “three remote* (ie, remote control, telemetry, and remote signaling) between the generator set and the host computer have been considered as the difficult technology in the generator set control system. Domestic individual companies can only produce products with a single function. The market mainly uses imported generator sets with more controllers, but even imported products rarely satisfy these functional requirements at the same time. The American Woodward company launches The EGCP-1 generator set controller is one of the few. Function introduction of EGCP-1 generator set controller 2.1 Parameter display function of generator set: LCD screen shows generator voltage, battery voltage, current, frequency, active power, reactive power, power factor, mains voltage (common busbar Voltage), unit temperature, oil pressure, unit speed, running time, etc. 2.2 The monitoring of 16 input switch points and 11 output switch points shows that it is easy to repair and handle faults. 2.3 Diesel engine control: air pre-heating control, solenoid valve control, starter motor control, cold running time control. 2.4 Synchronous control: the error of the voltage amplitude during the synchronization is adjustable between 0.1% and 10%, the phase error during the synchronization is adjustable between 2% and 20%, and the built-in busbar has no safety switch logic Interval adjustable time switch automatic reclosing, automatic resynchronization, synchronous overtime fault control, manual synchronization operation can artificially use the external input switch for speed regulation and voltage regulation (synchronous inspection is still valid when manual synchronization), power generation Synchronized control of the air switch on the unit and the mains side. 2.5 Active power control: Accurate and rapid control of the load can be achieved even in the presence of harmonics, and smooth loading and unloading of the load control (variable control rate of the load can be adjusted) can allow up to 8 units and The vehicle unit distributes the active load proportionally according to the capacity of the unit, and can use the basic power operation mode with the best fuel efficiency at the remote control unit. The external active power transmitter can be used to realize the input of the unit/ The output control can realize the flexible transition with the mains supply, the external load of the basic load can be adjusted, and the manual load control can operate in the kW drop mode. 2.6 Reactive power control: When the unit is individually networked, up to eight parallel-connected units may be allowed to distribute the reactive load proportionally to the capacity of the generator. The basic power operation mode of the unit can be a constant power factor or constant reactive power. Power mode operation, external power or power factor adjustable. 2.7 Genset operation sequence control: When the running load of the unit exceeds the set upper limit percentage of its rated power, it will automatically start another unit; when the running load of the unit is low and its rated power is lower than the set lower limit When this occurs, the operation of one unit with a lower priority is automatically unloaded and stopped; the priority level of the unit is adjustable. 2.8 Generator protection: high/low voltage, high/low frequency, reverse power, loss of magnetization, overcurrent (inverse time delay), mains power loss, speed/frequency mismatch, load impact. 2.9 Protection of diesel engines: high/low unit temperature, high/low oil pressure, overspeed, and start-up failure. 2.10 Interface with the host PC: Realize the initial configuration by downloading the software set by the host computer to the flash memory of the EGCP-1 and enable the protocol to pass through the RS422 communication port on the EGCP-1 to achieve the upper PC control and monitoring. Generator set. Several typical applications of the EGCP-1 Genset Controller The EGCP-1 Genset Controller is powerful and can change its operating mode by changing internal settings. Operation mode: *: 002004 1 code wearing - touch: ä¿: Deputy Chief Engineer of Jiangsu Taizhou State I 'mainly engaged in generators: group system (design research 1rightsreserved, http://4: stand-alone operation and mains Not connected to the grid, stand-alone operation and commercial power grid connection, multi-machine parallel operation and mains power is not connected to the grid, multi-machine parallel operation and commercial power grid connection, so that the unit can be different in the case of almost no change in the external wiring Switch between operating modes, and introduce some typical applications. 3.1 Single-machine operation and mains-in-grid disconnection mode This application mode is the most basic operation mode of EGCP-1, and it is also the most widely used occasion at present. In this mode, the precondition for running the generator set is that the mains-side air switch must be disconnected, detected by the mains abnormality (LOSSOFMAINS) or the closed test of the external automatic (AUTO) and runwheel loads (RUNWITHLOAD). To determine whether the unit is running with load. Since the unit and the mains are not connected to the grid at all times, there will always be short-term intervals when the mains and the units are supplied to the load. The EGCP-1 software configures this operating mode as follows. The controller of the load control module is set as the master and the rest is set as the slave in the AUTO state. The master commands the start and stop of the slave. Master and slave can be set through the panel. The LCD panel on the controller can display their master-slave sequence. The EGCP-1 software configures this operating mode as follows. Load control mode, no check (Normal mode menu 9 '4 - Load control mode This mode, when the external AUTO input point of the EGCP-1 controller is closed, once the mains power is off, the host first disconnects the air on the mains side. Switching, then all units (the respective EGCP-1 controller running sequence automatic control configuration is valid) start, the first power supply unit first closes the corresponding outlet air switch, and the other units are automatically synchronized to the grid. If the load of the unit is lower than the lower limit of the economic load rate, the host issues a command to command the unit with the lowest priority to be off-grid and automatically shut down; if the load of the parallel-connected unit is higher than the upper limit of the economic load rate during operation, Then the host issues an order to command the unit with the highest priority in the unit to be started and synchronized with the grid load.After the utility power is restored, the air switch on the unit side is instructed to trip, and then the air switch on the market side is combined to allow the unit to run without load. After the automatic shutdown. Market application prospects of EGCP-1 generator set controller With the gradual opening up of the domestic power market, there are many opportunities for diesel generator sets and utility power to be connected to the grid. EGCP-1 controllers will have strong functions and stable performance indicators. It can be applied to emergency standby generator sets, or to single-use generator sets for main-use power stations (grid-shaping peaks), or to several parallel-connected generator sets, which has a large application space. Magnetostrictive level sensor is composed of three parts: probe rod, circuit unit and float. To measure, the circuit unit generates pulses of current that travel down the magnetostrictive line and generate a circular magnetic field. A float is arranged outside the probe rod, and the float moves up and down along the probe rod with the change of liquid level. The float generates a magnetic field at the same time because it is fitted with a set of permanent magnets. When the current magnetic field meets the float magnetic field, it produces a "twisting" or "return" pulse. The time difference between the "return" pulse and the current pulse is converted into pulse signals to calculate the actual position of the float and measure the liquid level. Magnetostrictive Level Sensor,Magnetostrictive Level Transmitters,Magnetic Type Level Gauge,Liquid Level Sensor,Magnetostrictive Level transmitter Xi'an Gavin Electronic Technology Co., Ltd , https://www.gamicos-meas.com