Body. Programmable load box AC load load box
Body. 1. Technical parameters
Body active power measurement range, power measurement accuracy is .%, power resolution is
Body reactive power measurement range, the power measurement accuracy is .%, the power resolution is > Body equipment working power supply AC/
Body capacitive load single-phase three-phase continuously adjustable
Body programmable load equipment wiring method three-phase four-wire connection method, respectively, four wiring ports When using a single-phase two-wire system, you can connect one of the three: body current measurement range, current measurement accuracy is .%, and current resolution: body resistive load, inductive load, capacitive load The load can be continuously adjusted with minimum step amplitude.
Body resistive load single-phase three-phase continuously adjustable
Body-inductive load single-phase three-phase continuously adjustable
Body programmable load nominal voltage three-phase/or single-phase for each power gear /
Bulk phase voltage measurement range, accuracy is .%, voltage resolution is
Bulk appearance size**, weight approx.
Body. Programmable load box AC load load box
Body
Body. 2. Main functions
Body programmable load can pre-set the planned loading power of each phase and has automatic loading Measurement.
The body programmable load has a built-in precision programmable load, which is composed of a continuously adjustable resistance, inductance, and capacitive load system, an electrical parameter testing system, an automatic control system, and a software analysis system.
The minimum standard power of the built-in resistive load, inductive load and capacitive load is continuously adjustable in step amplitude.
The built-in inductor of the body-programmable load adopts a magnetic circuit controllable load inductance load element, which meets the power adjustment requirements under line voltage/(phase voltage/) working conditions and ensures that the inductor power is not affected during long-term loading tests. Changes will not affect the resonance point and cause it to shift.
The body can meet the three-phase load % unbalanced loading, simulate sudden loading and unloading, simulate various complex working conditions, and accurately measure the power supply performance of AC equipment.
The loads of the individually programmable loads are respectively equipped with intelligent loading control boards, which can load various power modules of each phase according to the command of the host.
The body programmable load has a built-in multi-channel electrical collector, which can accurately measure the voltage, current, active power, reactive power and other electrical parameters of each three-phase channel.
The body host control circuit can automatically compensate the parasitic resistance of inductive load components, meet the test requirements of accurate loading inductance detection, realize resonance and reactive power offset adjustment, and meet the anti-islanding test test.
The body can adjust the resonant frequency under the grid conditions according to the frequency of the grid. When the parallel circuit resonates, the inductive reactive power consumed by the circuit is equal to the capacitive reactive power. At this time, the parallel resonant circuit is equivalent to a pure resistance circuit.
The resistive loading power, inductive loading power, and capacitive loading power are displayed independently in phases. The parameters of the AC resonance point are directly displayed on the control panel. There is an indicator light when the load is loaded successfully.
It is a new type of power consumption component with high power density and no red heat phenomenon. The resistive load uses alloy resistance elements. During the test process, there will be no thermal drift in the impedance value due to the heating of the resistive load elements.
The built-in capacitor of the body programmable load adopts standard capacitive components, which meets the power adjustment requirements under line voltage/(phase voltage/) working conditions, ensuring that the capacitor power does not change during long-term loading tests and does not affect the resonance point. Make it offset.
Each branch of the built-in capacitive load of the body programmable load must be equipped with a special protection circuit module to prevent short circuits to prevent the capacitor components from being short-circuited during the test process and the moment the loading switch is closed and burning the host.
The power of the three-phase resistive load, inductive load and capacitive load can be controlled and adjusted independently in phases, meeting the requirement of accurately adjusting the AC resonance point under the condition of unbalanced three-phase voltage.
The body host control circuit can automatically compensate for the parasitic inductance of resistive load components, accurately load power, and meet the anti-islanding test requirements.
Body. Programmable load box AC load load box
The body host adopts electronic circuit control and has an automatic alarm protection function for temperature overheating. When overheating or overcurrent occurs due to special reasons, the load can be automatically cut off.
The body-programmable load can set the corresponding power through the remote machine. Any combination and setting of the loading power can be used to remotely control and adjust the power, upload the measurement data to the machine, and realize real-time recording of test data during the detection process. Store, and cooperate with the background analysis software to export the test data into a formatted inspection report.
The body can be equipped with the optional three-phase active power and reactive power measurement function output by the transformer, and can automatically preset the measured power value to the add-on. Press the load key, and the load can be automatically loaded to the corresponding value. Match the resonance state.
The optional function of the body programmable load can measure the grid-side current waveform, monitor the AC equipment output current waveform, and automatically calculate the protection time based on the waveform.
The body programmable load has a parasitic compensation function to meet the needs of accurate measurement, accurate loading, and accurate simulation of AC loads.
The body. Programmable load has built-in precision components to meet the grid-connected anti-islanding test and qualification testing. % of China’s national qualification laboratories selected
the body. Programmable load box AC load load box
300kwRLC AC load 300kwRLC load box