Specification
This specification is the technical requirements for the design, structure, performance, installation and test of capacitors.
Reference standards
GB311.1 ~ GB311.7 "High voltage transmission and transformation equipment insulation coordination"
GB/T16927.1 ~ GB/T16927.2 "High Voltage Test Technology"
GB3983.2-89 "High Voltage Shunt Capacitor" DL/T604-1996 "High Voltage Shunt Capacitor device ordering Technical conditions"
GB5582-85 "High voltage power equipment external insulation pollution Level"
Capacitor Model: FFM15-0.5uF
Use place: outdoor/indoor
Capacitor type: protective capacitor Environmental requirement
Altitude: ≤2000m
Ambient temperature: maximum temperature +45ºC, minimum temperature -40ºC
Wind speed: no more than 35m/s
Seismic level:
Pollution level: II
System rated voltage: 15 kV
Maximum operating voltage: 16.5kV
Rated frequency; 50HZ
Rated capacity: 35.33kVar
Rated current: 2.36A
Rated capacitance: 0.5uF
Medium structure: polypropylene film medium.
Protection mode: external fuse protection mode (built-in discharge resistance)
Tolerance deviation: The group capacitor phase error is less than 3% (factory adjusted to this value), each phase of the capacitor.
Deviation from the rating is less than 5%
The capacitor should choose the standard or national standard priority value, the absolute value of the temperature coefficient of the capacitor does not exceed 0.4‰/ ° C.
The loss Angle tangent of the capacitor is not greater than 0.0002, and the loss is less than 0.2W/kvar.
The burst resistance energy of the capacitor shell is 15kJ.
Non-chlorine, environmentally friendly insulation oil, medium oil is C101 oil, does not contain PCB high burning point.
Power frequency steady-state overvoltage capacity: 1.1Un - long-term; 1.15Un - 30min every 24h; 1.20Un -- 5min; 1.3Un -- 1min.
Steady state overcurrent: square average root value 1.30 In current.
Maximum allowable capacity: the total capacity of the capacitor is not less than 1.43 times the rated capacity of the capacitor.
Main technical requirements.
When the voltage exceeds the lower limit, the capacitor should be put in to prevent the oscillation caused by the voltage increase;
When the reactive power shortage When it is large, the oscillation caused by the voltage exceeding the upper limit after putting the capacitor should be prevented.
The equipment provided should have quick-break protection, over-current protection, open triangle protection.
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