Protective relaying and emergency control systems SHRZA are designed to provide power lines and transformer substations equipment with high voltage of 35-110 kV security during overloads, short-circuits and other faults   

 

Applications

SHRZA are used in switchgears 35-110 kV and transformer substations 110/35, 110/10(6), 35/10(6) kV structure

 

Reference designation structure:

        1      2   3    4      5   6

LE-RZ-ХХ-Х-ХХХ-ХХ ХХ

1 — Advances protective relarying and energy control systems produced by LVEP “Lider Elektrik”

2 — Purpose:

                ZL — line protection;

                ZТ — transformer protection;

                ZSH — bus protection;

                АТ — autoformer;

                SV — sectional and busbar coupler switches

3 — Measuring circuit rated current [A]

4 —Direct control current rated voltage [V]

5 — Degree of protection under GOST 14254

6 — Climatic region modification under GOST 15150-69

 

SHRZA order designation example:

SHRZA-ЗТ-5-220-LE IP54 NF4

 

Technical data of SHRZA (LE-RZ)

Parameter	Values
Measuring circuits rated voltage [kV]	35; 110
Rated frequency [Hz]	50
Measuring current rated current [A]	1; 5
Direct control current rated voltage [V]	110; 220
Incoming line and outgoing connection type	cable, lower
Maintenance type	single-end, double-end
Degree of protection under GOST 14254-69	IP21; IP54
Dimensions (W*D*H) [mm]	800*600*2200