| Type: | Distribution Metering Box |
|---|---|
| Structure: | Fixed Board |
| Certification: | VDE, CCC |
| Form: | Partly-welded Type |
| Operation Voltage: | Low Voltage |
| Size: | 3 Uint |
| Samples: |
|---|
| Customization: |
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Installation modeIt is very common for three phase unbalance in the low voltage distribution. In the urban network and agricultural network,due to a large number of single-phase load, and it is extremely serious for three phase current unbalance phenomenon. The current unbalance in the power grid will increase the consumption of lines and transformer, lowering the function of transformer, affecting the safe operation of transformer, as well as zero drift, which may lead to three phase voltage unbalance, thus to lower the power supply quality. For the above mentioned condition, in order to optimize the power quality, saving energy and reducing emission, we has specially designed three phase unbalance automatic adjusting device. This device can filter more than 90% of the zero sequence in the rated capacity, and control the three phase unbalance degree within 10%.
Schematic diagram of the automatic adjustment effect of HYSPC three phase unbalance
Imported 100A from phase B, respectively transferred 50A to phase A and phase C, making output balance for phase A, phase B and phase C of the transformer, thus to avoid the power quality problems.
a. Effectively avoid partly heating and aging for the middle lines, even the risk of fire. b. Effectively equipment error alarming caused by partly voltage unbalance.
c. Effectively avoid the risk of systemic weak electric equipment burnt caused by high zero ground voltage.
d. Will not increase the active power consumption.
Environmental temperature: -10°C - +40°C
Relative humidity: 5%~95% without condensation.
Altitude: ≤ 1500m, between 1500~4000m, according to GB/T3859.2, the power will be lowered by 1% when adding 100m.
Environmental conditions: no harmful gas and steam, no conductive or explosive dust, no violent mechanical vibration.
Outdoor installation: space of at least 15cm should be retained in the upper and lower outlet of the module,and space of at least 60cm shall be reserved in the front and back of the cabinet to facilitate maintenance.
Working voltage range: three phase 400VAC ± 20%.
Working frequency: 50Hz, allowed deviation of ± 5%.
Zero sequence current compensation capacity: ≥ 90% (rated capacity)
Management capacity of three phase unbalance: ≤10% (rated capacity)
Full-response time for compensation: <10ms
Connection mode: Parallel connection
Power consumption: <2.5% of the capacity
|
Capacity (kavr)
|
Size
(mm) |
Weight
(kg) |
Installation size
(mm) |
Installation hole size
(mm) |
|
35
|
W800xD460xH1150
|
50
|
610x240
|
4-∅13
|
|
50
|
W800xD460xH1150
|
60
|
610x240
|
4-∅13
|
|
75
|
W800xD460xH1150
|
75
|
610x240
|
4-∅13
|
|
100
|
W960xD455xH1130
|
95
|
770x250
|
4-∅13
|
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