Digital Power System Fault Recorder

Fault recorder's outstanding performance allows it to be used in monitoring power lines, generators and transformers.

FTR-01 power system fault recorder’s outstanding performance allows it to be used in monitoring power lines, generators and transformers.

Using fiber, the front end RAU (Remote Acquisition Unit) connects to the central control unit. This new structure insulates the EMC disturbance perfectly. Device can withstand (IEC225-22-4)IV,4kV fast transient disturbance. Additionally, the RAU could be installed as far as 1000 meters from the central control unit for use when signal can not be connected to control centers.

With up to 96A/192D input channels, FTR-01 has enough channels to construct large monitoring systems. Powerful DSP digital signal processors calculate the data from the RAU and provide the vector, harmonic, phase angle, root of mean squire and power etc. for the control unit to make decisions. Adapting the principle of relay protection, FTR-01 not only monitors power lines, but also measures the generators and transformers simultaneously.

Auto Frequency Track insures accuracy in FFT analysis. Real time monitoring allows for easy construction of Remote Mimicking Boards. Slow scan recording allows for up to 10 days of data retrieve availability for research on the operation of the power system.

Through open interface of software and special format of parameter setup, user can design various monitoring and testing function.

NEW SYSTEM:  Insulated via fiber connection, the front end DAU can be utilized in the unique circumstances not possible with competitive units.

NEW TECHNOLOGY:  Embedded real-time multitasking system, DSP real-time FFT analysis, PCI bus constructed by FPGA, high speed sync serial data coded in Manchester format.

NEW FUNCTION:  Trig uses the principle of relay protection.

LONG TERM RECORD:  10 days CCS.

SEAMLESS RECORDING:  Withstands long periods of intensively triggers without losing records.

OPEN SYSTEM: Mimic board and special tests can be designed by users themselves.

LESS DOWNTIME RISK: PC is not necessary, fewer parts, high reliability;

WIDE RANGE IN FREQUENCY TRACKING: In the 40 to 60 Hz range, FFT algorithm tracks the signal frequency to ensure accurate analysis.

IMPORTED HARDWARE: Control unit adopts imported hardware also used in demanding aviation applications.

STANDARD CHASSIS: Chassis fits the standard of IEC60297-3, with Euro type cards inserted into the real or front side.

Main Specifications

 Input signals:

  1.Analog channels: 32-96;Evt channels:64-384

  2.Normal AC Voltage: 80V,130V,260V;

  3.Normal AC Current: 1A, 5A;

  4.DC channels: 0-75mV,4-20mA,0-600V;

Sample Characters:

  1.Transient recorder: 10/5/2.5/1.25KHz available

  2.Triggered slow scan: 50Hz;

  3.Continue slow scan: 50Hz;

  4.Continual Recorder: 1KHz for more than 7 days

Trigger mode:

  Normal trig type:

    Over, under, window trig, ROC trig;

  Calculated value trig type:

    Over, under, window trig, ROC trig; Harmonic, single phase P,Q, 3 phases P,Q, frequency, Positive sequence voltage, Negative sequence voltage, Zero sequence voltage, difference of phase angle etc.

  Protection relay trig type:

Generator percentage differential relay

Generator balance relay

Generator zero sequence over relay

Generator negative sequence direction relay

Generator 3rd harmonic relay

Generator loss of field relay

Generator out of step relay

Generator over exciting relay

Generator frequency abnormal relay

Generator stator over voltage relay

Transformer differential relay

Transformer r winding protection relay

Transformer zero sequence differential relay

Transformer over current relay

Transformer over load relay

Test:

  Generator open, short, synchronizing, destroy magnetic, 10% step;

Accurate:

Rated AC voltage, current @50Hz,25°C:0.2%

Rated AC voltage, current @45-55Hz,25°C: 0.3%

Rated AC voltage, current @40-60Hz,25°C: 0.5%

EVT resolution:

100μs

Clock Accurate:

Runtime clock: ±1 s/day

Sync with GPS: ±100 μs

Record Mode:

FTR: (Fault of Transient Record):

 1. Pre fault time: 100ms-500ms selectable.

 2. Post fault time: 400ms-5000ms selectable

If a new trig occurs during post fault time, another post fault time will be expended and so on.

 3. Record limit time: 400ms-1000ms selectable

CSS: (Continually Steady State):

 Continually Steady State records the calculated value of channel signal. This record does not need any trigger and continual records the data at 50 Hz sample rate. Ten days data is stored before the old data is overlaid with new data. All calculated values can be recorded as CCS.

TSS: (Trigged Steady State):

 Each Transient record could initial a TSS record. Before and after trig time 30-600 seconds, any duration could be set to create a TSS record.

 Just half channels can be selected to be recorded CSS or TSS.

Record Format:

IEC60255-24: 2001-05

(COMTRADE) for power systems

COM Protocol:

RJ45 TCP/IP; RS232 Modem Dial TCP/IP;

Dual Host(Optional):

   Two hosts record signal from same RAU to increase the reliability. The probability is very low while two hosts are damaged simultaneously. When a host is being maintained, the other one would be on duty.

 FTR-01 Digital Fault Recorder series(Concentrating or distributing application):

FTR-01S series: Recorder for Smart Power Grids

FTR-01L series: Recorder for Power feeders

FTR-01P series: Recorder for Generator–transformers

FTR-01DL series: Dual Host System Recorders for Power Line System

FTR-01DP series: Dual Host System Recorders for Generator-transformer

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