Page 19 - YINGMING POWER(HIGH VOLTAGE)
P. 19
FZW28-12F
OUTDOOR BOUNDARY VACUUM
LOAD BREAK SWITCH YINGMING POWER
Switch rated parameters
project Unit Parameter
Rated voltage kV 12
1min power frequency withstand voltage (between poles, dry 42
Rated insulation ground / break) kV wet 34
level
Lightning impulse voltage (between poles, ground / fracture) kV 75/85
Rated frequency Hz 50
Rated current A 630
Rated short-time withstand current and duration kA/4s 16/4
Rated peak withstand current kA 40
Rated short-circuit making current kA 40
Mechanical life Times 10000
Design life year 20
net weight KG 210
Note: 1. When the altitude of the product use place is higher than 1000m, the insulation withstand voltage should be adjusted accordingly. 2. When the PT is built-in, it is
forbidden to withstand voltage between the poles.
The main technical parameters
Electronic current sensor
Phase current 600A/1V
Rated current ratio
Zero sequence current 20A/0.2V
Phase current 0.5S/5P10
Accuracy level
Zero sequence current 10P10，（1%-120%）In ＜ 1%
Method to realize Low power electromagnetic
Load impedance ≥ 20 kΩ
temperature range -40℃ -70℃
Electronic voltage sensor
Phase voltage (10kV/ )/(3.25V/ )
√3
√3
Rated voltage ratio
Zero sequence voltage (10kV/)/(6.5V/3)
Phase voltage 0.5
Accuracy level
Zero sequence voltage 1
Method to realize Resistance voltage
temperature range -40℃ -70℃
Partial discharge 14.4kV Time，≤ 10pC
Terminal input impedance> 10 MΩ Distribution line loss acquisition
Load impedance module input impedance> 10 MΩ Comprehensive impedance> 5MΩ
Electromagnetic voltage transformer (external type)
Quantity (only) 2
Rated voltage ratio (kV) 10/0.1/0.22
Accuracy level 0.5
Capacity (VA) 10 / 0.1 winding, 30VA10 / 0.22 winding, to meet product power consumption requirements
Rated capacity ≥ 150VA short-term capacity ≥ 300VA / 1s
Shape and installation size (mm)
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