Guodian Nanzi PST693U microcomputer integrated protection device

Guodian Nanzi PST693U microcomputer integrated protection device

PSL 691U
Line protection measurement and control device
Three section overcurrent protection (can be started by composite voltage, and can be with direction)/three section zero sequence overcurrent protection (can be with direction)/overload protection/reclosing/synchronous manual closing/closing acceleration protection/low cycle load shedding/low-voltage load shedding/small current grounding line selection/measuring lines with voltage levels of 35kV and below.
PSL 691US
Line protection measurement and control device
Three section composite voltage overcurrent protection/zero sequence overcurrent protection/overload protection/post acceleration protection/4-20Ma output/measuring auxiliary power incoming line, buscouple switch.
PST 691U
Differential protection of transformer differential protection device/differential quick break protection/differential current out of limit alarm/TA disconnection discrimination.
PST 691UF
Transformer non electric quantity protection device Transformer non electric quantity protection/separate operating circuit.
PST 692U
Transformer backup protection and monitoring device
Composite voltage lockout (direction) overcurrent protection/zero sequence current protection/clearance zero sequence current protection/zero sequence voltage protection/overload protection/startup ventilation/lockout on load voltage regulation/measurement of transformers with voltage class of 110kV and below and capacity of 6300kVA and above.
PST 693U
Transformer protection and monitoring device
Three section composite voltage overcurrent protection/inverse time overcurrent protection/two section definite time negative sequence overcurrent protection/definite time zero sequence overcurrent protection at high voltage side/definite time zero sequence overcurrent protection at low voltage side/inverse time zero sequence overcurrent protection at low voltage side/overload protection/overvoltage protection/low voltage protection/non electric quantity protection/FC locking/4-20mA output/measuring station service transformer, service transformer and grounding transformer below 2000kVA.
PSC 691U
Capacitor protection, measurement and control device
Current quick break protection/overcurrent protection/overvoltage protection/low-voltage protection/zero sequence overcurrent protection/unbalanced current protection/unbalanced voltage protection/differential voltage protection/differential current protection/measuring shunt capacitor bank.
PSR 691U
Reactor (cable) differential protection device
Differential protection/differential quick break protection/three-stage composite voltage overcurrent protection/zero sequence overcurrent protection/overload protection/measuring series reactor, cable line.
PSP 691U
Automatic switching device of standby power supply
Buscouple backup automatic switch/incoming line backup automatic switch/transformer backup automatic switch/auxiliary power automatic switch Standby power automatic switch.
PSV 691U
PT protection, measurement and control device, two-stage low-voltage protection/bus insulation detection/measurement, 35kV and below PT cabinet.
PSV 692U
PT paralleling device PT paralleling single bus section.
PSV 693U
PT paralleling device PT paralleling/two section low-voltage protection single bus section.
PSM 691U
Motor differential integrated protection device Differential protection integrated protection measures 2000kW and above asynchronous motor.

Guodian Nanzi PST693U microcomputer integrated protection device

PSM 692U
Motor comprehensive protection, measurement and control device
Current quick break protection/definite time overcurrent protection/two-stage definite time negative sequence overcurrent protection/inverse time negative sequence overcurrent protection/overheating protection/locked rotor protection/single-phase grounding protection/low-voltage protection/overload protection/non electric quantity protection/FC locking/4-20mA/measurement of asynchronous motor below 2000kW.
PSM 693U
Synchronous motor differential comprehensive protection device Differential protection comprehensive protection measures synchronous motor.
PSM 694U
Synchronous motor comprehensive protection device
Out of step protection/reverse power protection/current quick break protection/definite time overcurrent protection/inverse time negative sequence overcurrent protection/overheat protection/locked rotor protection/single-phase grounding protection/low voltage protection/overload protection/non electric quantity protection/measuring synchronous motor.
PSM 695U
Motor differential protection device
Differential protection/differential quick break protection/differential current out of limit alarm/CT line break alarm asynchronous or synchronous motor.