Wholesale of Line Protection Devices

Nanjing Nanrui RCS9611C Line Protection Device

RCS-9000The series of factory power protection and measurement devices adoptXian inThe technology and meticulous design ensure the protection of factory electricityThe measurement and control are both relatively independent and integrated with each other, and the protection device is not affected by the measurement and control and external communication, ensuring the protectionSafety and reliability.

RCS-9000The series of factory power protection and measurement devices not only support the protection required for power plant power consumptionProtection, measurement, monitoring, and control functions, as well as various advanced application functions required for electrical automation in power plants, such as power generationThe fault information and waveform recording functions required for electrical monitoring in power plants are essential for the safe, stable, and economical operation of power plant electricityProvided a solid foundation

1.2 Overview of RCS-9000 series factory power protection and measurement device

RCS-96C2C Factory Transformer Protection and Measurement Device

RCS -96C2C is suitable for the protection and measurement device of two coil auxiliary transformers in power plants. Can be installed on a group screen, or

Can be installed on-site in the switchgear.

Protection function:

(1) Differential quick break protection;

(2) Ratio differential protection, second harmonic braking principle;

(3) Three stage overcurrent protection on the high voltage side (where sections I and II can be selected for overvoltage blocking, and section III can be selected for reverse)

Time limit, without re pressure locking);

(4) High voltage side two-stage negative sequence overcurrent protection;

(5) Overload alarm;

(6) High voltage side grounding protection: two-stage timed zero sequence overcurrent protection, zero sequence section II can be set to alarm or trip;

(7) Low voltage side grounding protection: two-stage timed zero sequence overcurrent protection, zero sequence section II can be set as inverse time zero sequence protection

Overcurrent;

(8) The current blocking function coordinated with the F C circuit;

(9) 3-channel non electricity protection (two alarms or trips, one trip);

(10) Independent operating circuit and fault recording;

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Technical Specification for NARI-RELAYS RCS-9000 Series C-Type Plant Power Protection and Measurement Device

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Measurement and control function:

(1) 10 channels of remote signaling input acquisition, device remote signaling displacement, and accident remote signaling;

(2) Normal circuit breaker remote control opening and closing;

(3) Telemetry of analog quantities such as IA, Ios, IC, P, Q, COS ф on the high-voltage side;

(4) Statistics of switch accident opening and closing times and event SOE, etc;

(5) Optional 2-channel 4-20mA analog output, replacing the transmitter as a DCS current and active power measurement connection

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(6) Optional 2-channel pulse input for automatic meter reading of external electricity meters.

RCS-9624C Factory Transformer Protection and Measurement Device

RCS-9624C is suitable for small current grounding systems or small resistance grounding systems with voltage levels ranging from 3 to 35KV, and is used in plant transformers

Protect the measurement and control device. It can be installed on a group screen or installed on-site in a switchgear.

Protection function:

(1) Three stage overcurrent protection on the high voltage side (where sections I and II can be selected for overvoltage blocking, and section III can be selected for reverse)

Time limit, without re pressure locking);

(2) Two stage timed negative sequence overcurrent protection on the high voltage side;

(3) High voltage side grounding protection: two-stage timed zero sequence overcurrent protection, zero sequence section II can be set to alarm or trip

Lock;

(4) Low voltage side grounding protection (two-stage timed zero sequence overcurrent, of which the zero sequence II section can be set to inverse time zero)

Sequential overcurrent);

(5) Overload alarm;

(6) The current blocking function of FC circuit coordination;

(7) Non electricity protection;

(8) Independent operating circuit and fault recording.

Measurement and control function:

(1) 10 channels of remote signaling input acquisition, device remote signaling displacement, and accident remote signaling;

(2) Normal remote control opening and closing of the high-voltage side circuit breaker of the transformer;

(3) Telemetry of analog quantities such as IA, IC, I0, UAB, UBC, UCA, P, Q, COS ф, F, etc;

(4) Statistics of switch accident opening and closing times and event SOE, etc;

(5) Optional 2-channel 4-20mA analog output, replacing the transmitter as the DCS current and active power measurement interface

(6) Optional 2-channel pulse input for automatic meter reading of external electricity meters.

RCS-9625C Line Protection Measurement and Control Device

The RCS-9625C line protection and measurement device is suitable for comprehensive protection and measurement of power plant feeders, branches, or bus sections,

Can be installed on-site in the switchgear.

Protection function:

(1) Three stage overcurrent protection (where sections I and II can choose to be locked by re voltage, and section III does not need to be locked by re voltage)

Select as inverse time limit);

(2) Two stage zero sequence overcurrent protection (zero sequence current can be externally applied, or self generated zero sequence current can be used, among which the second

The segment can be selected as an alarm or trip function through tuning;

(3) Overload protection (can be selected as alarm or trip function through setting);

(4) Acceleration protection after closing;

(5) The current blocking function coordinated with the F C circuit;

(6) Independent operating circuit.

Technical Specification for NARI-RELAYS RCS-9000 Series C-Type Plant Power Protection and Measurement Device

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Measurement and control function:

(1) 10 channels of remote signaling input acquisition, device remote signaling displacement, and accident remote signaling;

(2) Normal circuit breaker remote control opening and closing;

(3) Telemetry of 10 analog quantities including UAB, UBC, UCA, IA, IC, I0, P, Q, COS ф, F, etc;

(4) Statistics of switch accident opening and closing times and event SOE, etc;

(5) Optional 2-channel 4-20mA analog output, replacing the transmitter for DCS current and active power measurement

Interface;

(6) Optional 2-channel pulse input for automatic meter reading of external electricity meters.

RCS-9626C motor protection and measurement device

RCS-9626C is suitable for protection and measurement devices of medium and high voltage motors with voltage levels of 3-10KV, and can be installed locally in the switchgear

Installation.

Protection function:

(1) Short circuit protection, long start-up time and locked rotor protection: three-stage timed overcurrent protection;

(2) Unbalance protection (including phase failure and reverse phase): Two negative sequence overcurrent protections (with the option to select the negative sequence two)

Set as inverse time limit);

(3) Overload protection;

(4) Overheating protection: divided into overheating alarm and overheating trip, with thermal memory and prohibition of restart function, real-time

Display the heat accumulation of the electric motor;

(5) Grounding protection: zero sequence overcurrent protection;

(6) Low voltage protection;

(7) The current blocking function coordinated with the F C circuit;

(8) Three way non electricity protection;

(9) Independent operating circuit and fault recording.

Measurement and control function:

(1) 10 channels of remote signaling input acquisition, device remote signaling displacement, and accident remote signaling;

(2) Normal circuit breaker remote control opening and closing;

(3) Telemetry of analog quantities such as P, Q, IA, IC, COS ф, etc;

(4) Statistics of switch accident opening and closing times and event SOE, etc;

(5) Optional 2-channel 4-20mA analog output, replacing the transmitter for DCS current and active power measurement

Interface;

(6) Optional 2-channel pulse input for automatic meter reading of external electricity meters.

RCS-9627C motor protection and measurement device

RCS-9627C is suitable for the protection and measurement device of large high-voltage motors in the 3-10KV voltage level, and can be installed in the switchgear

Ground installation.

Protection function:

(1) Current longitudinal differential protection/magnetic balance differential protection;

(2) Short circuit protection, long start-up time and locked rotor protection: three-stage timed overcurrent protection;

(3) Unbalance protection (including phase failure and reverse phase): two-stage timed negative sequence overcurrent protection, one-stage negative sequence overcurrent protection

Load alarm, where the negative sequence overcurrent II section and the negative sequence overload alarm section can choose to use inverse time characteristics;

(4) Overload protection;

(5) Overheating protection: divided into overheating alarm and overheating trip, with thermal memory and prohibition of restart function

Display the heat accumulation of the motor at the time;

(6) Grounding protection: zero sequence overcurrent protection;

Technical Specification for NARI-RELAYS RCS-9000 Series C-Type Plant Power Protection and Measurement Device

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(7) Low voltage protection;

(8) Three way non electricity protection;

(9) Independent operating circuit and fault recording.

Measurement and control function:

(1) 10 channels of remote signaling input acquisition, device remote signaling displacement, and accident remote signaling;

(2) Normal circuit breaker remote control opening and closing;

(3) Telemetry of analog quantities such as P, Q, IA, IC, COS ф, etc;

(4) Statistics of switch accident opening and closing times and event SOE, etc;

(5) Optional 2-channel 4-20mA analog output, replacing the transmitter for DCS current and active power measurement

Interface;

(6) Optional 2-channel pulse input for automatic meter reading of external electricity meters.

RCS-9628C Bus Voltage Protection and Measurement Device

RCS-9628C is a protection and measurement device used for the 6KV and 380V voltage of the factory busbar, which can be installed locally in the switchgear.

Protection function:

(1) Three stage low voltage protection (the third stage can serve as a composite voltage lockout output);

(2) Bus overvoltage alarm;

(3) Zero sequence overvoltage alarm;

(4) PT disconnection alarm;

(5) Non electricity protection (two-way);

(6) DC power monitoring alarm;

(7) Fault recording.

Nanjing Nanrui RCS9611C Line Protection Device

Measurement and control function:

(1) 10 channels of remote signaling input acquisition, device remote signaling displacement, and accident remote signaling;

(2) Telemetry of 8 analog quantities including UA, UB, UC, U0, UAB, UBC, UCA, and F;

(3) Event SOE, etc;

(4) Optional 4~20mA analog output, replacing the transmitter as the DCS voltage measurement interface;

RCS-9629C Backup Power Supply Automatic Switching and Measurement and Control Device

RCS-9629C is suitable for one backup section (or backup incoming line) and one working section of the low-voltage plant service system in power plants

It can also be used in other similar situations.

Protection function:

(1) Automatic switching function of backup power supply (incoming line/transformer);

(2) Self recovery function after restoration of working power supply;

(3) Failed to activate the security power supply function through automatic switching;

(4) Automatic synchronization closing function, synchronization points: backup power switch, working power switch.

Measurement and control function:

(1) 10 channels of remote signaling input acquisition, device remote signaling displacement, and accident remote signaling;

(2) 1 set of remote control outputs, which can be used as remote control for switch on/off and backup for remote switching (virtual remote control);

(3) Remote sensing of analog quantities such as bus voltage UAB, UBC, UCA in the working section;

(4) Event SOE, etc.