Smart column on the switch controller
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Smart column on the switch controller
◆ Overview:
Smart column switch controller is a high-speed sampling chip and 32-bit high-speed processor combined with a new high-voltage switch controller, can quickly and steadily complete the high-voltage switch monitoring. It combines protection, monitoring, control, communication and other functions in one, with high integration, flexible configuration, friendly interface and so on. Widely used in 6-35kv transmission and distribution power supply system, can help the system to identify the line transient fault and permanent failure, can automatically eliminate the impact of instantaneous failure on the line, but also isolated permanent fault section, to avoid long-term large area power outage , Automatic recovery of non-fault section of the grid power supply, thus economical and practical to achieve distribution network automation.
(GSM / GPRS / CDMA), Ethernet, WIFI, optical, power carrier, RS232 / 485, RJ45 and other means of communication, and access to other station equipment (such as TTU, FTU, DTU, etc.), support DNP3, IEC60870- 101,104, Modbus protocol.
◆
Use the environment
1. Ambient air temperature: -40 ℃ ~ +55 ℃, daily temperature difference: Daily change: 25 ℃;
2. Elevation: not more than 4000 meters;
3. Wind speed: no more than 35m / s;
4. No frequent severe vibration;
5. No strong corrosive gas, medium places (such as various acids, alkali, smoke, etc.);
6. Put pollution capacity level IV;
7. Storage temperature: -40 ℃ ~ +55 ℃.
◆ product application
Widely used in 6-35kv transmission and distribution power supply system, the controller with the switch with the identification of instantaneous fault and permanent fault line, automatic isolation of permanent fault segment.
Suitable for the occasion: the column on the border switch control, the column load switch control, column user boundary load switch control, column segment switch control, contact switch control.
◆ Border switch controller (watchdog controller)
The controller is the monitoring unit of the medium voltage overhead line power grid. The on-board switch is used to realize the automatic monitoring of the line state, the fault analysis and the judgment record, and has the functions of driving the switch protection line equipment safety, cutting the line fault and automatically resuming the line operation. Applicable to 35kv and below outdoor switch equipment include: vacuum circuit breakers, oil circuit breakers and gas circuit breakers.
The controller is suitable for spring operating mechanism vacuum circuit breaker, set line protection, control, voltage, current signal measurement, monitoring in one integrated automation outdoor monitoring and control device. It has all the functions of handling all voltage and current signals of one overhead line and one remote switch.
◆ function
1. With a quick break, limited time off, set the time limit overcurrent of the three-stage protection;
2. With hand-assisted acceleration section protection function, the circuit breaker in the fault to accelerate the trip, and closed closing;
3. With 0 to 4 times the automatic closing function, to meet the "sub-t1-sub-t2-sub-t3-sub-t3-points - lock" work characteristics, with coincidence acceleration, coincidence times, coincidence Delay can be set freely;
4. With zero sequence protection, can determine the small current to ground fault;
5. With inrush suppression protection function
6. With over-voltage trip protection
7. With loss of pressure protection function
8. With the power to close the protection function
9. With frequency protection function
10. With energy storage alarm function
11. Event records
12. Real-time clock
13. Real-time status query
Optional features
1.SOG function 2. Dual PT function 3.CT anti-open function 4. Smartphone control
◆ technical parameters
|
Power Supply |
Rated power supply |
AC 220V |
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Nominal voltage tolerance |
-20％ ~+20％ |
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|
Power waste |
≤ 5W |
|
|
Rated frequency |
5Hz |
|
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Waveform distortion |
≤ 5％ |
|
|
Rating |
Current transformer |
5A or1A，Power waste＜ 1.0VA/ mutually |
|
Voltage transformer |
220V，Power waste＜ 0.5VA/ mutually |
|
|
frequency |
50Hz |
|
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Measuring range and precision |
Protective current |
0.10~99.99A ≤ ±3.0％ |
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Zero sequence current |
0.010~9.999A ≤ ±0.5％ |
|
|
Voltage |
0.1~280.0V ≤ ±0.5％ |
|
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Protective performance parameter |
Event resolution |
2ms |
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Quick exit time |
stay1.2In under，Group action time≤ 40ms |
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Export time difference |
≤ 1％ |
|
|
Exit relay |
Contact load (resistance) |
10A/220VAC,10A/28VDC |
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Electrical life |
10 Million times |
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|
Electromagnetic compatibility |
insulation resistance |
≥ 10M |
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Insulation strength |
2.5kV，1min |
|
|
Voltage dips and voltage interruptions |
100％，0.5s |
|
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High frequency interference mode |
1.5kVP,1min |
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common mode |
2.5kVP,1min |
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|
transients |
4.0kVP,1min |
|
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Wave interference |
4.0kVP,1.2/50μs |
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Electrostatic discharge |
8kV |
|
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Power frequency magnetic field |
100A/m |
|
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Damped oscillatory magnetic field |
100A/m |
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impulse voltage |
5kV,1.2/50μs |
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All EMC and performance indicators meet the DL/T 721-2000IV standard |
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communication interface |
The main port |
1 way RS85 excuse (baud rate optional) |
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work environment |
Operating temperature |
-25％ ~+70％ |
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Storage temperature |
-40％ ~+70％ |
|
|
humidity |
5％ ~100％Including gel |
|
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Environmental temperature change rate |
25℃ /h |
|
|
atmospheric pressure |
70~106KPa |
|
|
surrounding environment |
No explosion, corrosive gas and conductive dust, no bacteria, no violent vibration |
|
|
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Impact source |
|
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Other technical indicators |
Overall weight |
≤ 5kg |
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Shell protection class |
≥ IP65 |
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|
Mean time between failures |
≥ 50.00h |
|
◆Permanent magnet switch controller
The controller is the monitoring unit of the medium voltage overhead line power grid. It cooperates with the on-board switch to realize the automatic monitoring of the line state, the fault analysis and the judgment record, and has the functions of driving the switch protection line equipment safety, cutting the line fault and automatically resuming the line operation. Applicable to 35kv and below Switchgear equipment include: vacuum circuit breakers, oil shorters.
The controller is suitable for permanent magnet operation mechanism vacuum circuit breaker, set line protection, control, voltage, current signal measurement, monitoring in one integrated automation outdoor monitoring and control device. It has all the functions of handling all voltage and current signals of one overhead line and one remote switch.
◆Current - time type splitter controller
The controller is a digital overcurrent-pulse type segment controller with the number of times the memory pre-stage switch (recloser or circuit breaker) disconnects the fault current and cuts the line from the grid after a predetermined number of interrupts. Widely used in the distribution (domain network, rural network), it is 6kv or 10kv overhead lines on the column vacuum circuit breakers, load switches and other equipment to control the operation, in other equipment with the realization of distribution network fault location , Fault isolation and automatic fast recovery of non-faulty areas of power supply.
◆ function
1. Overcurrent detection 2. Ground (zero sequence) protection
3. Inrush current protection 4. Loss of pressure detection
5. Event log 6. Real-time clock
7. Real-time status query 8. Smartphone control (add as needed)
◆ Features
1. Interval fault current setting can be set 2. Zero sequence fault setting can be set
3. Inrush time can be set 4. The number of memories can be set
5. Low voltage delay alarm 6. With anti-jump function
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