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HRT-SVG Power Quality Comprehensive Solution
keyword：
HRT-SVG Power Quality Comprehensive Solution
Category：
Power Energy-Saving Products
Product details
50. Product introduction:
SVG is a new type of power electronic device used to dynamically compensate reactive power and control three-phase imbalance, which can analyze the reactive power content of the load current by sampling the load current, and then control and actively output the corresponding reverse reactive current, and respond quickly to compensate for the reactive energy component in the load current to achieve dynamic tracking compensation. SVG <>kvar is rack-mounted, centralized monitoring mode.
1.1 Product principle
The static reactive power generator detects the load current in real time through the external current transformer, and extracts the reactive component (inductive or capacitive) of the load current through the internal DSP calculation, and then sends it to the internal IGBT through the PWM signal, and controls the inverter to generate a corresponding reverse reactive current (capacitive or inductive) into the power grid to achieve the purpose of reactive power compensation.
1.2 Product Topology
Figure 1-2 Product topology diagram
1.3 Product model
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Model specifications |
remark |
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1 |
100 SVG 44L/RE |
LED rack mount 3-phase 4-wire system, suitable for centralized monitoring and machine use |
1.4 Module shape and installation size
The specific dimensions of SVG 100kvar are shown in Figure 1-3 below
Figure 1-3 LED rackmount SVG 100kvar outline size drawing
Second, technical parameters
2.1 environmental requirements
Storage temperature: -20 °C ~ +70 °C Working temperature: -10 °C ~ +40 °C
Humidity requirements: maximum 95%, non-condensing
altitude: 1500m, in 1500m-4000m. According to the national standard GB/T3859.2, every 100m of increase reduces the power by 1%.
Seismic intensity: no more than 8 intensity.
Anti-pollution level: 2 grade.
2.2 Environmental requirements
Working line voltage: AC380V (304V~456V) Working frequency: 50Hz (47.5Hz~52.5Hz) Compensation power: 100Kvar
power grid structure: three-phase four-wire
parallel number of units: unlimited, a single centralized monitoring with up to six power modules
Efficiency: >97% (full load)
Mean time between failures: 10,15 hours
Switching frequency: 0kHz (average)
CT range: 30000~5/<>
2.3功能描述
Function: reactive, unbalanced.
Control algorithm: fast FFT, intelligent FFT, instantaneous reactive power. Compensation power: 100Kvar
working mode: compensation reactive power, unbalance and its combination, self-aging, constant reactive power control, mixed mode a total of 7 options.
Reactive power compensation ability: with reactive power compensation function, can compensate for inductive reactive power and capacitive reactive power, the target power factor -1~1 is adjustable.
Three-phase imbalance compensation: It has a three-phase imbalance compensation function.
Fast response time: <50us
full response time: <10ms
2.4 Physical characteristics
Installation method: rack
size (width * depth * height, unit: mm): 500 * 603 * 220 (rack LED)
Net weight: 45kg
Ventilation capacity: 150 L/sec
Body color: black orange pattern RAL9004
Noise: <60dB
Protection level: IP20
Communication interface: RS485
Incoming mode: rear line (rack type)
2.5 Protection function
Protection functions: overload protection, short circuit protection, bus bar overvoltage protection, overtemperature protection, frequency abnormal protection, phase loss protection, etc
2.6 Other Descriptions
Temperature derating function: Yes.
Overtemperature alarm function: Yes.
Energy-saving mode: Yes, you can set the energy-saving mode of regular power on and off, and the low-load energy-saving shutdown mode.
3. Monitoring instructions
3.1 Introduction to monitoring display
SVG 100kvar is a centralized monitoring mode, which monitors all modules in the parallel system in real time through 7-inch color touch monitoring. The monitoring display interface is shown in Figure 3-2.
The 7-inch monitor has a USB interface for data download and program burning.
The standard wiring of Fanyi large monitoring does not support RS485 connection to the background, if you need to connect to the background, you need to choose 232 to 485 module.
Figure 3-2 7-inch monitoring screen main interface
3.2 The monitoring menu is detailed
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Menu name |
Menu items |
paraphrase |
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Real-time information |
Basic data |
Grid voltage |
Voltage(V) |
Three-phase phase voltage |
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Frequency (Hz) |
Three-phase voltage frequency |
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THDU |
Three-phase voltage distortion rate |
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waveform |
Three-phase voltage waveform display |
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Grid current |
Valid value (A) |
Grid-side three-phase current rms |
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Factor |
Grid-side power factor |
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THDI |
Grid-side three-phase current distortion rate |
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waveform |
Three-phase current waveform display on the grid side |
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Load current |
Valid value (A) |
Load-side three-phase current rms |
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Factor |
Load-side power factor |
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THDI |
Load-side three-phase current distortion rate |
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waveform |
Load-side three-phase current waveform display |
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Compensate for the current |
Valid value (A) |
Compensation side three-phase current rms |
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Load rate |
The compensation current currently output by the system accounts for the rated output of the system The ratio of the current |
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Power analysis |
Apparent power |
The grid measures A, B, and C depending on the power |
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Load side A, B, C look at power |
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Active power |
The power grid measures the active power of A, B, and C phases |
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Load-side A, B, C phase active power |
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Reactive power |
The grid measures the A, B, and C phase reactive power |
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Load-side A, B, C phase reactive power |
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Parameter settings |
Basic settings |
Working mode settings |
There are 6 operating mode options, of which mode 3 (self-aging) is not selectable by the user. (Type 7, mixed mode requires standard A7 monitoring) |
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CT ratio setting |
To set the external CT ratio, such as 300:5, the user must |
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Ensure that this setting is consistent with the external CT ratio |
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CT position settings |
CT actual position selection, and only the load side is supported under the machine |
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External transformer setup |
Set the external transformer ratio |
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Compensation mode settings |
You can choose intelligent compensation mode, successive compensation mode, or full compensation mode (intelligent compensation mode recommended) |
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Blend mode settings |
Reservation capabilities |
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Number of slaves |
Set the number of power modules within the system |
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Parallel capacity setting |
Set the parallel system capacity to consolidate a single single single in the system The sum of the rated currents of the machine is indicated. |
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Startup mode |
Used to set SVG boot mode, in "Auto Power On Mode", SVG will automatically start compensating for load harmonics when it is powered down and then powered back on. In "manual power-on mode", SVG must be monitored when it is powered down and then powered back on The control boot command will be activated |
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Controller parameter I |
Debug variables, which are prohibited from being changed by users |
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Compensation rate |
Set the harmonic compensation rate, 1.0 for 100%, and so on push |
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Target power factor |
In the harmonic + reactive power compensation mode, set the power factor target value on the grid side. SVG adjusts the reactive current according to its own load rate to connect the power factor on the grid side Near the target value |
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Input voltage level setting |
Set the voltage level of SVG operation and prohibit user modification |
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Inductor current calibration process |
It is used to choose to compensate for emotional reactive power or capacitive reactive power, and prohibits user from changing |
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3-phase 3/4-wire system |
Set the input line system of SVG and prevent users from changing it |
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External passive filter settings |
Reservation capabilities |
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CT wiring method |
The CT secondary side wiring method is selected, and it is recommended that users prefer the series connection method |
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Debug variables 1~6 |
View DSP internal variables to prevent users from changing them |
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Record information |
Current alarm information |
The sequence number of the current alarm information, the name of the alarm, and when the alarm occurred space |
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Historical alarm information |
Alarm information serial number, alarm name, alarm occurrence time, The alarm end time |
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Record of operations |
Record the operation type, the amount of change in the operation, and the operation time |
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Power on and off |
Boot |
Send a power-on command |
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Shutdown |
Send a shutdown command |
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Fault clearance |
Clear the system is not automatically recoverable class failures |
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Version information |
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Displays the software version number and system model |
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3.3 Monitoring Protocol
SVG 100Kvar module and centralized monitoring support modbus protocol.
4. Installation requirements
4.1 Module fixation
SVG 100Kvar modules are rack mounted. The rackmount model is fixed in the cabinet, see Figure 1-3 for details.
4.2 Stand-alone power distribution
In addition to the different fixing methods, the specific wiring is shown in Figure 4-1;
Figure 4-1 Schematic diagram of each terminal port of a single machine
The A/B/C/N/PE terminal size is M8, and the fixed torque is between 80-100 Newton*m. A 50mm 2 BVR cable is recommended for A/B/C, a 50mm 2 BVRcable for N wire, and a 16mm2BVR cablefor PE cable. According to the national standard, the colors of A/B/C/N/PE cable PVC insulation are yellow, green, red, blue, yellow-green
The signal port in Figure 4-1 is defined as shown in Figure 4-2 below, where the monitoring interface is used in connection with centralized monitoring, the code pull switch is the number of the design single module (for parallel setup), and the effective bit of the DIP switch is 1~3 bits. The relationship between the DIP switch and the number is expressed in binary, as shown in Table 4-1 below: ("1" for "on" and "0" for "off"). The meaning of the signal terminal is shown in Table 4-2.
Figure 4-2 Signal port schematic
Table 4-1 DIP Switch Description
Table 4-2 describes the signal ports
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serial number |
logotype |
description |
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serial number |
logotype |
description |
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1 |
EPO_B |
Connect with an external setting emergency shutdown button |
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1 |
CT_A |
Connect to the S1 end of A-phase CT |
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2 |
EPO_A |
Connect with an external setting emergency shutdown button |
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2 |
GND_A |
Connect to the S2 end of A-phase CT |
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3 |
485+ |
Module-to-module connection with 485 signal |
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3 |
CT_B |
Connect to the S1 end of the B-phase CT |
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4 |
485- |
Module-to-module connection with 485 signal |
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4 |
GND_B |
Connect to the S2 end of the B-phase CT |
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5 |
485+ |
Module-to-module connection with 485 signal |
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5 |
CT_C |
Connect to the S1 end of the C-phase CT |
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6 |
485- |
Module-to-module connection with 485 signal |
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6 |
GND_C |
Connect to the S2 end of the C-phase CT |
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7 |
CAN_H |
Reserved channel (CAN signal) |
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7 |
EPO_A |
Emergency shutdown button connection between modules |
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8 |
CAN_L |
Reserved channel (CAN signal) |
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8 |
GND_ISO |
Emergency shutdown button connection between modules |
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9 |
485P+ |
The module is connected to the background with a 485 signal |
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9 |
EPO_A |
Emergency shutdown button connection between modules |
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10 |
485P- |
The module is connected to the background with a 485 signal |
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10 |
GND_ISO |
Emergency shutdown button connection between modules |
5. Packing list
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name |
Model |
quantity |
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Warranty card |
36 open coated paper |
1 copy |
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Test report |
A4 paper printing |
1 sheet |
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User manual |
Continuous folding double-sided - paper |
1 copy |
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Pluggable terminal blocks (female) |
Green 10 wells |
2 pcs |
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Insulated terminals |
Insulated round terminals blue-2.5mm-ROHS |
6 pcs |
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resistance |
120Ω |
1 pcs |
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screw |
M4*8 |
4 pcs |
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Hanging ears (rack) |
left |
1 pcs |
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Hanging ears (rack) |
right |
1 pcs |
Table 5-1 Packing Checklist
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Tel：0755-82127848、82128238、33393678
Fax：0755-82127849
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