Portable waveform recorder manufacturer

A productOverview

YELB600Electric wave recorderMeets the following main criteria:DL/T 553-2013General technical specifications for dynamic recording devices in power systems;GB/T 14598.301-2010Technical Requirements for Microcomputer based Generator Transformer Fault Recording Device.GB/T 7261-2008 Basic test methods for relay protection and safety automatic devices;

YELB600Electric wave recorderBased on powerfulPowerPCPlatform, adopting a large-scale approachFPGAA device designed by combining technology with high-performance embedded real-time operating systems, capable of dynamically recording and analyzing faults to meet the development needs of the power system. Widely applicable to lines and generators of various voltage levels-Transformer units, transformers, and other situations that require fault recording, status recording, and analysis.

Two product featurespoint

1. Multiple ways to start recording waves

Sudden variable startup waveform recording

High limit start recording

Low limit start waveform recording

357th harmonic start recording

Current variation starting waveform recording

Start recording of frequency change rate

Start recording when the frequency exceeds the limit

Start waveform recording when the frequency is low and exceeds the limit

Positive sequence high over limit start waveform recording

Positive sequence low limit start waveform recording

Negative sequence over limit start waveform recording

Self-produced zero sequence over limit start waveform recording

Self-produced zero sequence mutation starting waveform recording

Switching start waveform recording

Manually start waveform recording

2. Remote online operation

havePCDedicated software for remote online operation, capable of viewing waveforms, summoning recording files, exporting recording files, etc. through a computer

3. Vxworks+ubuntusystem

The upper computer adoptsubuntuSystem, the lower computer adoptsVxworksThe system design ensures that it will not be infected by viruses or Trojans, guaranteeing the safe and stable operation of the system.

4. Waveform analysis and editing

Support waveform editing

Analysis methods for support vectors, order quantities, harmonics, impedance, power, periodic components, etc

Custom functions can be implemented using a formula editor

Three technical characteristics

1Adopting a new circuit structure and75000Large scale programmable logic devices with high integration and resistancedisturbStrong, stable system operation.

2Based on powerfulPowerPC+X86Platform, sampling rate20kHzAdjustable, with high harmonic resolution199Next, switch event resolution0.05ms；

3Data recording adoptsA-B-CSegment method,ATheBTheCAll segments are recorded using sampling values, abandoning traditional methodsDTheELow sampling rate and effective value recording segment improve data availability;

4Support long-term continuous recording, the device can1-5KHzContinuous recording of sampling values, recording data to7The refresh cycle is based on days, and the data retention time is only limited by the number of channels and memory capacity;

5Dynamic wave recording and fault distance measurement with variable length, the distance measurement accuracy of metallic short circuits is better than2%；

6Complete types of startup criteria, sensitive startup waveform recording under various short circuits, grounding faults, and other abnormal operating conditions;

7The formula editor can generate waveform diagrams of various electricity quantities and their exported quantities, and dynamically observe their trajectories over time, accurately reproducing the entire fault process;

8Support multiple timing methods;

Four technical parameters

Analog accuracy

AC voltage（PT）The channel accuracy is shown in the table below

AC current（CT）The channel accuracy is shown in the table below

The accuracy of the DC voltage channel is shown in the table below

overload capacity：

Voltage circuit:1.4Multiple rated voltage, continuous operation;2Multiple rated voltage, working10s.

Current circuit:2Multiple rated current, continuous operation;10Multiple rated current, working10s；40Multiple rated current, working1s.

Recording management machine

The recording management machine adopts a high-performance and low-power embedded integrated industrial control computer, equipped with500GLaptop hard drive, runningpeopleOperating system. Adopting a wide viewing angle industrial grade9.7²Touch the monitor. equipped with3aUSBInterface, can connectUSBKeyboardUSBMouseUSBPrinterUSBMobile storage devices, etc; equipped with2aRJ45Network interface, supporting configuration8groupIPAddress, used to connect to switches or directly to computers.

storage capacity

accessible32Road analog quantity and40Road switch quantity, standard configuration500GHard disk as storage medium

insulation performance

1.insulation resistance

The insulation resistance between all input signals of the device and the casing shall not be less than under standard test conditions100MOh.

2.Medium strength

The medium strength between all analog input signals of the device and the ground and between circuits without electrical connection can withstand AC communication50HzVoltage2kV(Effective value), duration1minTest without insulation breakdown or flashover phenomenon.

The dielectric strength between the device's switch quantity and the ground, as well as between circuits without electrical connection, can withstand alternating current50Hz, voltage500V(valid value)Over time1minTest without insulation breakdown or flashover phenomenon.

deviceGPSThe dielectric strength between the time signal and the ground, as well as between circuits without electrical connection, can withstand alternating current50Hz, voltage500V(valid value)Over time1minTest without insulation breakdown or flashover phenomenon.

communication

support standardTCP/IPagreement.

Communication method: Connected to the fault information management system via Ethernet; Networking with multi-level scheduling via Ethernet.

Communication speed:10/100M.

Power supply and power consumption

AC power supply: rated voltage: single-phase220V, allowable deviation-20%~+15%, frequency50Hz, allowable deviation±3Hz；

Power consumption: Working power supply: ≤50W；

External dimensions and weight

Overall dimensions(tall´wide´deep)：364mm*201mm*376.2mm

Weight:13Kg