1. Applicationa
The products are applied to 50Hz or 60Hz AC electrical power system for powerirmpr-oving and will be according to the national standard GB 3983.2-89 (high voltage shumt capacitor) and inter national IEC 60871-1.
2. Service conditions
A. Altetude lower than 1000m,ambiedt temperature -40℃~+400℃;
B. No strong mechanical vibmfom at installing place.No corrosive gas,inductive dust,and inrlammable and explosive media in the ambient environment;
C. The medium between poles should resist one of below tests in 10 seconds;
a. Frequency AC voltage:Un(~)=2.15Un
b. DC voltage:Ut(-)=4.3Un
D. The insulation of the terminals and cases should resist below voltage;
E. To extend the life of capacitors,the capacitor should always run in rated voltage;
F. Capacitor should resist a 2.2 Un or below first peak and last 1/2 cycle of transitional over voltage;
G. Capacitors can tolerance 1.3 In stable over current because of voltage increase or high harmonic.For those capacitors with highest to lerance ,the over current can reach 1.43In.
H. The deviation of rated and actual capacitance should be -5%~+10%,The ratio of highest and lowest capacitance of any two terminals should not be higher than 1.08.
I. When capacitors are at the frequency rated voltage,the loss tangent (tgδ)at 20℃ is 0.0005.
J. For those capacitors which contain discharge capacitor,it is possible to reduce the voltage from peak voltage to 75V within to minutes.If reducing to SOV with Smins is needed,it should be indicated in ordering.
K. Three-phase capacitors are star configurations.Discharge resistors are added in each phase.
3. Applicable Standards
GB/T 11024.1-2010 National Standard{Rated Voltage 1 KV or Higher AC Power System Shunt Capacitor}
IEC60871-1:2005 International Standard{Shunt Capacitor}
