Microcomputer relay protection tester use method

Section 1 Touch Screen Microcomputer Relay Protection Tester Manual Test
1.1 Module Introduction The manual test module is the most basic test module of the relay protection tester. It is suitable for various tests. The user can freely add the values ​​of each analog quantity. It is purely manual operation, intuitive, convenient, and free. It is new. The user's entry module is also a good tool for checking samples.
1.2 Principle Introduction In this test module, the user manually controls the output and change process of the analog quantity by setting the parameters of each analog quantity to achieve the purpose of testing the test object.
1.3 test interface

1.3.1 Analog quantity setting area
A. The description includes three input modes: LN, LL, impedance, power, and DC. You can switch between the input modes below. The detailed view is described in detail below. To test, first set the initial parameters to be output, then click on the toolbar. Button, the tester will start to output according to the parameters of the initial settings. When the output is started, we can change the output of the tester in three ways.
The first type: directly change an output parameter. If you change any parameter and press Enter or switch to another input box, the change of these parameters will directly lead to the change of output.
The second type: the user can also select the step size option after each change parameter according to the step change, and set the change step size of each variable (the step size can be positive or negative), and then click the increase/decrease button once. Change all the output once according to the step size.
The third type: press the hold button with the hold button. At this time, all the parameters can be set in the analog input area. In the process, all the changes will not be directly applied to the output as in the first method. After the setting is completed, press this button again, the tester will output according to all the parameters set.
B. Input view introduction
LN input view: It is also the most common way to set the analog output parameters with AC phase voltage and phase current mode.

Figure 1-1
Note: After the touch screen microcomputer relay protection tester is set to the "arbitrary" type, in order to improve the user's convenience, some right-click menu functions have been added:

Touch screen microcomputer relay protection tester When the mouse arrow is placed in the amplitude input box, right click, this menu will pop up, where: clear: means to set the value of all voltage amplitude or current amplitude input box to zero Amplitude: Indicates that all voltage amplitudes or current amplitudes are set according to the values ​​in this input box. This menu pops up when you click the right mouse button in the phase input box. Where: In-phase: Indicates that all phase values ​​are set to the same phase according to the value in this input box. Positive sequence: Indicates that the value in the voltage or current input box is set in the positive order based on the value in the input box. Negative sequence: Indicates that the value in the voltage or current input box is set in the negative order of the line in this input box.
This menu pops up when you click the right mouse button in the frequency input box. Among them: same frequency: means that all voltage or current frequency is set according to the value in this input box.
Tick ​​the selection box before the step size, then click the right mouse button in the step input box to pop up this menu. Where: Synchronization length: indicates that the amplitude or phase or frequency change step corresponding to the voltage or current channel is set by the value in this input box.
LL input view: The analog line parameters to be output can be set by AC line voltage and line current mode; as shown in Figure 1-2:
Impedance input view: This input mode is only valid for three-phase systems. The analog output parameters can be set by the impedance input mode, as shown in Figure 1-3:

Figure 1-3
The calculation formula and calculation constant in the interface are used to determine the calculation method of the impedance, and the impedance can be calculated according to the constant current value or the constant voltage value. The Z-phi mode and the RX mode represent the impedance-angle mode and the resistance-reactance mode, respectively. When the different modes are selected, the following set value input boxes will also change. The graph on the right is the impedance map, where the blue dot indicates the currently set impedance value. For the distance component, you can select the desired component under the relay property page. After setting the constant value, its characteristic graph will be displayed in the impedance characteristic diagram.
Sequence component input view: This input mode is valid only for the three-phase system. After selecting this mode, the interface of the analog quantity setting area will become the following form, as shown in Figure 1-4:

Figure 1-4
V0, V1, V2 in the interface represent zero sequence voltage, positive sequence voltage and negative sequence voltage respectively; I0, I1, I2 represent zero sequence current, positive sequence current and negative sequence current respectively, users can set their amplitude and positive Sequence phase and step size.
Power input view: This input mode is valid only for the three-phase system. After selecting this mode, the interface of the analog setting area will become the following form, as shown in Figure 1-5:

Figure 1-5
The SA, SB, and SC in the interface represent the apparent power of the A, B, and C phases, respectively. The apparent power is composed of active and reactive power. After setting the power, the voltage must also be set. The software will automatically calculate the current that needs to be output. Amplitude and phase.
DC input view: When this mode is selected, the interface of the analog setting area will become the following form, as shown in Figure 1-6:

Figure 1-6
Touch screen microcomputer relay protection tester The setting of this interface is basically the same as that of LN, but the phase and frequency are not set. In addition to the DC/intermediate relay test module, the GH-6406B test software can be used for DC test. Only the interface of the manual module can be set. The amount of DC, and the settings are more free.
C. The step size sets all the above interfaces. After the variable, there is a step input box corresponding to the variable. When the selection box before the step input box is selected, the variable will change according to the step size. The step value can be positive or negative. When set to a positive value, the change of the variable will be consistent with the direction of change of the increase/decrease button. When set to a negative value, the change direction will be opposite. For example, when the increase button is pressed, the value of the variable decreases instead. This method can be used to simulate a voltage reduction, but at the same time the current increases.
1.3.2 Setting Bar The input mode drop-down menu is used to switch the required input mode. Click the drop-down menu of the input mode, as shown in Figure 1-5: Select the corresponding input mode, and the above will be displayed in the analog setting area. The corresponding input view that was introduced.

The fault type setting is used to set the fault type of the current output. Any, normal, AE, BE, CE, AB, BC, CE, ABE,
Twelve types of BCE, CAE and ABC. Any of these represents any type of analog output. In this state, the amplitude, phase, and frequency of an analog channel can be arbitrarily changed without fault boundary constraints. The opening amount setting is used to set whether to output a switch amount information from the tester to the test object. The selected one represents a closed signal for the output channel, otherwise the output is disconnected.
After the action, the test option is ended. After setting this option, if there is an input amount input, the output will be automatically ended.
Automatic change step option. After setting this option, if you are in the test state, press the increase/decrease button at this time, the software will automatically change the variable of the selected step option according to the setting in each step and the number of steps. When the value is increased, the variable is automatically changed in increments of the step size, and vice versa. Each step refers to the time each step is maintained when it changes automatically. The number of change steps refers to the total number of steps that are automatically changed.
Note: When the automatic change, if the step size is set too small, and the number of change steps is too much, at this time, due to the resolution factor, the final output value may have a certain error, so it should be considered comprehensively when using this function.
1.3.3 Touch screen microcomputer relay protection tester output status bar The output status bar shows the nature of the current output analog quantity. When outputting AC, the display is as shown in Figure 1-10:
If the output is a DC signal, the current output is shown in the figure: DC.

Figure 1-10
1.3.4 Vector diagram is used to display the vector diagram corresponding to the current analog quantity. This figure is only valid for three-phase systems
1.3.5 The opening amount state diagram is used to display the displacement state of the current opening amount in real time during the test. Red indicates that the opening amount is the off state, and green indicates that the corresponding switch amount is the closed state.
1.3.6 Switching The displacement information column is used to list the displacement of the switch and the displacement time from the output of a certain step.
1.3.7 Hold/Output Button There is a save button above the increase and decrease button. The function of this button is: if you need to modify the parameters of multiple analog channels at one time during the test output, you can click this button, the tester will Keep all previous outputs unchanged. At this time, the user can operate on the parameters that need to be modified. When all the parameters are modified, click the output button. At this time, the tester will output all the modified parameters at the same time.
1.4 touch screen microcomputer relay protection tester notes
1) After the start of the test, you cannot switch to other test modules until the test is completed. Only after the test is finished can you switch to other modules.
2) The increase/decrease button only works for the channel ticked by the selection box before the step.
3) The functions of the same amplitude, in phase, and clear in the right mouse button menu are only for the variables of the same attribute, such as all voltages or all currents, and cannot be applied to both voltage and current variables.
4) The opening amount status bar shows the displacement time of the opening amount, not only the switch closing time, but also the opening time of the switch. As long as the state of the opening amount changes, this column will display its time. The timing start point is the moment from the start of the test or the moment the output of the channel changes.
Section 2 Touch Screen Microcomputer Relay Protection Tester Trigger Test
2.1 Module Introduction The trigger module is suitable for testing the test time of the relay, such as the action time test, the self-injection and the reclosing, and can test various state sequences as needed.
2.2 Touch screen microcomputer relay protection tester principle Introduction This module has two test modes: normal mode and custom mode. among them:
Normal mode: Used to perform a general fault test, by which the action time at the time of failure can be obtained. Use a fixed pre-fault-fault-post-fault status sequence in this mode. The analog outputs in the sequence will change in three states: before, after, and after the fault. After the test starts, the tester starts to output from the pre-fault state, and enters the fault state after the set time. In this state, if the opening amount displacement meets the set opening amount condition, the tester will switch from the fault state to After the fault, the output state after the fault remains until the set output time condition is met. After the time, the output is cut off and the test is terminated. If the set opening amount condition is not satisfied in the fault state, after the fault output is maintained to the set output time, the output is cut off and the test is terminated. The normal mode is specifically used to test the action time of the relay and verify the action state of the relay at a certain value.
Custom mode: In this mode, users can edit their own sequence of states as needed. Users can easily define and sequence up to 250 state sequence processes and provide status in terms of time or volume. The ability to jump between them, so the module can simulate various power system fault conditions to achieve the purpose of inspection and detection of the protection device. Several common status sequences are provided in the signal sequence list, including regular trigger, single-hop single, double-hop dual, triple-trip triple, fault transition, and self-projection, which users can use or use. The process learns how to edit a new sequence of states. Among these sequences, the single-hop single weight corresponds to the coincidence success test; the double-hop double corresponds to the permanent failure test or the conversion failure test; the three-hop triple corresponds to the multiple coincidence test.