DGZB low voltage reactive power automatic compensation device is suitable for industrial and mining enterprises, workshops, petrochemical and civil residential 100-5000KVA power distribution system, three-phase AC voltage 380V, frequency 50HZ.
DGZB type reactive power compensation device adopts self healing low-voltage shunt capacitor, small size, convenient installation and maintenance. The screen is arranged in the RVC type reactive power automatic compensation controller and a RVC controller, using 6-16 step cycle switching mode, how to 10-120S adjustable time interval according to the load power consumption amount of inductive reactive power automatic control of shunt capacitor switching action, reactive power to keep the lowest state the grid, which can improve voltage quality and reduce loss of power transmission and distribution system of the transformer.
First, the model and its meaning
Note: type 2 can be installed two types of reactors:
The background harmonic device access is over 5 times to take 4.5-6% reactor
The background harmonic device access is over 3 times to take 12-13% reactor
Type 1 with current limiting reactor, can effectively suppress the inrush current.
Two, the use of environmental conditions
1, the use of the.
2, ambient air temperature: -25 ~ +50, the temperature limit of the capacitor switching is -5.
3, relative humidity: 40 DEG C = 50%, C = 90% 20.
4, workplace: no harmful gas and steam
Non conducting and explosive dust
No violent mechanical vibration
5, at an altitude of less than 2000 meters (Note: if the altitude is higher than 2000 meters should be agreed by plateau type capacitor)
6, the installation of the gradient is not more than 5 degrees.
Three, the main parameters and their technical characteristics
1, rated voltage: AC 0.23 ~ 1.1KV
2, rated frequency: 50HZ
3, rated capacity: single 3 ~ 400Kvar
4, Capacitance Deviation: the difference between the capacitance and the nominal capacitance of the capacitor is not more than 0 ~ 5%, the maximum value and the minimum value of the capacitance measured between any two lines of the three-phase capacitor is not greater than 1.02.
5, the maximum allowable current: 1.3In continuous operation.
6, the internal discharge resistance to the capacitor after power off within 1 to 3 minutes to discharge to the following 50V
7, shunt capacitor power frequency overvoltage and the maximum duration of the relationship (see Table 1) |
