Transformer protection cubicle ShZT-1

Transformer protection cubicle ShZT-1
  • Constant voltage
    220 V
  • Power consumption
    30 W
Microcontroller protection of connections provides security, automation and control of overhead and cable power lines, section and main switch switchgear, transformers, power up to 6.3 MVA and motors up to 4 MW.
Specifications
ParameterValue
Number of windings of the protected transformer
— TT
— PR

3
3
Rated voltage of the power transformer, kV
— TT
— PR

0,4 - 35
0,4 - 6
Rated DC voltage of cubicle power, V220
Power consumption, W, max30
Average lifetime, years, max15
Weight, kg, max200
Overall and fitting dimensions, mm600x400x2000

Appointment

ShZT-1 transformer protection cubicle is designed for protection of two- and three-winding power transformers and autotransformers with HV-side voltage of 35 kV from phase faults and interturn short circuits. ShZT-1 is based on MK-DZT microcontroller transformer differential protection (core protection) and MKZP-3 microcontroller connection defense (backup protection).

Advantages

2 degrees of differential protection — differential overcurrent and the sensitive biased differential protection.

MK-DZT-3 implements the functions of protection and automation, control over switching devices, measuring and signaling:

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Protection cubicle