Beijing Sifang CSC-241C Digital Plant and Station Transformer Protection and Control Device

Device Introduction

This device is suitable for the protection and control of station or plant transformers and can be installed locally in switchgear cabinets.

1.1.1 Protection Functions

a) Instantaneous overcurrent protection for phase-to-phase faults;

b) Overcurrent protection;

c) Overload alarm or trip function;

d) Current acceleration protection;

e) Zero-sequence current protection, which can operate in either definite-time or inverse-time mode;

f) Undervoltage protection with current blocking;

g) Non-electrical protection;

h) F-C overcurrent blocking function.

1.1.2 Measurement and Control Functions

a) 15-channel digital input for telemetry acquisition, device status change telemetry, and fault telemetry;

b) Remote control of normal circuit breaker opening and closing;

c) Telemetry of analog quantities such as Ua, Ub, Uc, Ia, Ib, Ic, P, Q, cos?;

d) Various event SOE, etc.;

e) 2-channel pulse P and Q input.

1.1.3 Other Functions

a) PT disconnection alarm;

b) Control circuit disconnection alarm;

c) Spring not charged alarm;

d) Fault recording;

e) 32 setting groups;

f) 4-20mA output.