Shl-md/vdp

SHL-MD/VDP type low-voltage distribution system charge regulator controller suitable for low-voltage distribution power network shunt relay function is as follows:
(1) low-voltage power supply and distribution network shunt three-phase the charge imbalance current differential value to adjust the setting relay role.
(2) single-phase high impedance to ground short circuit, a shunt three-phase charge imbalance current differential relay protection role.
(3) low-voltage power supply and distribution network single-phase short-circuit, three-phase shunt automatically jump off the relay.
(4) The rated capacity of single-phase load system can adjust the value of the set overload relay role.
(5) low phase relay for distribution network regions na.
(6) for assignment to the grid region shunt system off zero (N), causing the phase shift, resulting in the phase voltage Poor> 10%, when the system phase voltage deviation of ≥ 13%, due to the protective effects of the controller provided within the VDP system , shunt trip became an instant trigger the main power three-phase automatic air switch automatically jump off the relay.
Suitable for urban construction planning sub-stage charge relay settings, the approval of plans for a given user load current customer demand for electricity capacity, and can do a one-time investment in hardware capacity equipment according to the geographical area of ​​the preset solve the load due to the region of excessive growth of; installed capacity disjointed affected the development needs of the user power consumption.