GDGC-600T Power Fault Recording Analyzer for Generator Transformer

• After-sales Service: yes
• Warranty: 1 year
• recording data format: can be transferred to COMTRADE 1999 or COMTRAD
• data storage: 32-bit CPU and the management computer
• main parts: DSP and 32-bit embedded CPU
• operation system: real-time VxWorks operating system
• Model NO.: GDGC-600T
• Transport Package: Plywood Case
• Specification: ISO9001
• Trademark: HV HIPOT
• Origin: Wuhan, China

Product Description

GDGC-600T Power Fault Recording Analyzer for Generator Transformer

General Information

GDGC-600T Electric Power Fault Recording Analyzer, also known as generator characteristic analyzer and generator fault recorder. It is designed with advanced DSP and 32-bit embedded CPU, combined with the high-performance embedded real-time VxWorks operating system, and is an embedded power fault recorder analysis device that adapts to the development needs of power systems. It can be widely used in circuits of various voltage levels, generator-transformer groups, transformers and other occasions where fault recording, status recording and analysis are required.


Features
 

1. The signal acquisition and start-up calculation adopts a single DSP architecture, and a DSP realizes the access of 32 analog quantities and 32 switching quantities. At the same time, it adopts a new circuit structure and 75,000 large-scale programmable logic devices with high integration and resistance. The interference ability is strong, and the system runs stably.
2. 32-bit high-speed floating-point digital signal processor (DSP), 16-bit A/D, 10kHz adjustable sampling rate, harmonic resolution ≤99 times, switching event resolution 0.1ms.
3. Using high-performance real-time embedded VxWorks operating system, the system is stable, reliable, and good in real-time.
4. The recorded data are stored on the 32-bit CPU and the management computer, which greatly improves the security of the data.
5. Data recording adopts the A-B-C section method, and the A, B, and C sections all adopt sampling value recording, which discards the traditional D, E low sampling rate and effective value recording section, so that all data can be analyzed by phase diagram and impedance analysis. Greatly improve the availability of data.
6. Supports long-term continuous recording. The device can continuously record with 1KHz sampling value. The recorded data is refreshed in a 7-day cycle. The data retention time is only limited by the number of channels and memory capacity.
7. Variable-length dynamic wave recording and fault location, and the location accuracy of metallic short circuit is better than 2%.
8. There are complete types of start criteria, and it can start recording sensitively under various short circuit, ground fault and other abnormal conditions.
9. Powerful calculation and analysis capabilities (voltage, current amplitude, peak value, effective value, frequency calculation, active and reactive power calculation, power angle, phase angle measurement, phase, sequence and harmonic analysis).
10. The formula editor can generate waveform diagrams of various electric quantities and their derived quantities, and can dynamically observe their trajectories over time to truly reproduce the whole process of failure.
11. Support a variety of time synchronization methods, including contact pulse time synchronization, IRIG-B code time synchronization, network time synchronization, etc., and support time synchronization method combination and two-way time synchronization.
12. Can work independently from the management machine.
13. The recording data format is automatically converted, and it can be transferred to COMTRADE 1999 or COMTRADE 1991.
14. Advanced anti-jamming design: adopt 8-layer PCB, SMD assembly and software fault-tolerant technology, and the anti-jamming ability reaches the level of IV standard specified by GB/T14598.

Specifications

1. Input signal
1) It can be connected to 32-channel analog and 32-channel switching value

• Standard configuration of analog channels:

AC voltage (TV) channel: rated voltage: 57.7V, rated frequency: 50Hz, range: 180Vrms, number of channels: 8.
AC current (TA) channel: rated current: 5A, rated frequency: 50Hz, range: 180Arms, number of channels: 8.
AC and DC current (Hall) channel: range: 125Arms,number of channels: 4.
AC current (clamp meter) channel: range: 100Arms, rated frequency: 50Hz, number of channels: 4.
DC voltage channel: measuring range: 0V-+750V, number of channels: 2.
DC voltage channel: measuring range: 0V-+300V, number of channels: 2.
DC voltage channel: measuring range: 0V-+10V, number of channels: 2.
DC voltage channel: measurement range: 0V-+200mV, number of channels: 1 channel.
DC current channel: Measuring range: 0mA - +20mA, the number of channels: 1 way.

• Switch signal form:

DC24V empty contact, number of channels: 16 channels.
DC110V/220V active contact, number of channels: 16 channels.

• Time synchronization method:

IRIG-B code time, RS485 interface form.
Hardware pulse time (minute or second), DC24V empty contact.

2) Analog accuracy:
AC voltage (PT) channel accuracy is shown in the table below

Input voltage	5.00V	20.0V	50.0V	100.0V	150.0V	180.0V
Measurement error	≤0.5%	≤0.5%	≤0.1%	≤0.5%	≤0.5%	≤0.5%

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

Input voltage	0.50A	1.00A	2.50A	5.00A	25.0A	50.0A	100A
Measurement error	≤2%	≤0.5%	≤0.2%	≤0.1%	≤0.2%	≤1%	≤2%

DC voltage channel accuracy is shown in the table below

Input voltage(Occupies full scale%)	5	10	20	50	70	90	100
Measurement error	≤2%	≤1%	≤0.2%	≤0.1%	≤0.2%	≤1%	≤2%

3) Overload capacity:
AC voltage circuit: 3 times the rated voltage, continuous work.
AC/DC current loop: 10A current, continuous work. 100A current work for 10s. 180A current work for 1s.

2.2. Sampling indicators
1) Single DSP sampling, sampling rate 10 kHz, 5kHz, 2kHz, 1kHz can be set.
2) At 10kHz sampling rate, the harmonic resolution is 99 times.
3) At 10kHz sampling rate, the switching event resolution is 0.1ms.
4) At 25ºC, the sampling accuracy of current and voltage waveforms at the rated value is better than ±0.5%.
5) At 25ºC, the relative error of the effective value measurement between the voltages and currents under the rated value is less than ±0.5%.
6) The measurement error of active power, reactive power, and apparent power does not exceed ±0.5%.
7) The phase measurement error between each AC voltage and AC current of the device is ≤0.5°.
8) The error caused by the temperature change from -10ºC to 50ºC does not exceed ±1.0% of full scale.
9) The AC channel with a rated frequency of 50Hz adopts adaptive technology to adjust the zero drift.
2.3. Signal processing
1) 32-bit high-speed floating-point DSP + 32-bit embedded CPU.
2) 16-bit A/D.
2.4. Clock and synchronization accuracy
1) There are three time synchronization methods: hardware pulse time synchronization, IRIG-B code time synchronization, and network time synchronization.
2) Synchronous clock accuracy: IRIG-B and pulse mode≤-1s.
3) The accuracy of the device's own clock is 24h, and the error is ≤±1s.
2.5. Waveform data recording method
Adopt the A-B-C segment recording method, the recording time of each period can be adjusted, the sampling frequency can be set, and all are instantaneous sampling values, and the minimum sampling rate is 1000 Hz.
2.6. Recording management machine
The recorder management machine adopts an embedded integrated industrial computer with high performance and low power consumption, equipped with a small 80G notebook hard disk, and runs Windows 2000 Server operating system. It adopts wide viewing angle industrial grade 8.4TFT liquid crystal display. Equipped with 4 USB ports, you can connect USB keyboard, USB mouse, USB printer, USB mobile storage, etc.
2.7. Storage capacity
It can be connected to 32-channel analog and 32-channel switching, and the embedded 32-bit CPU plug-in is equipped with a standard 80G notebook hard disk as a storage medium.
2.8. Synchronous storage
The fault data is stored at the same time by the hard disk of the embedded 32-bit CPU in the GDGC-600T and the hard disk on the recording management machine to ensure the safety of the recording data.
2.9 Startup accuracy
1) phase voltage jump start
Setting range 0.03-0.2Un
Setting accuracy is not more than 5%
2) Zero sequence voltage jump start
Setting range 0.03-0.2 Un
Setting accuracy is not more than 5%
3) Positive sequence voltage over-limit start
Setting range 1.05-1.3 Un
Setting accuracy is not more than 2%
4) Negative sequence voltage over-limit start
Setting range 0.02-0.2Un
Setting accuracy is not more than 2%
5) Zero sequence voltage over-limit start
Setting range 0.02-0.2Un
Setting accuracy is not more than 2%
6) Frequency over limit start
Setting range 50.2-52 Hz
Setting accuracy is not more than 0.001 Hz
7) Frequency change rate start
Setting range 0.01-10Hz/s
Setting accuracy is not more than 0.005 Hz/s
8) Start when the current becomes 10% worse within 1.5s
Setting range 0.05-0.3In
Setting accuracy is not more than 3%

1. Phase current jump start

Setting range 0.02-0.3In
Setting accuracy is not more than 5%

1. Phase current over limit start

Setting range 0.5-1.3In
Setting accuracy is not more than 2%
11) Zero sequence current jump start
Setting range 0.02-0.3In
Setting accuracy is not more than 5%
12) Zero sequence current over-limit start
Setting range 0.05-0.3In
Setting accuracy is not more than 2%
13) Negative sequence current over-limit start
Setting range 0.05-0.3 In
Setting accuracy is not more than 2%
2.10. Parameter modification method
Online modification: When the recorder is running, you can directly modify the running settings and parameters.
2.11. Anti-electromagnetic interference ability
1) It can withstand the radiated electromagnetic field interference with severity level III specified in GB/T14598.9.
2) It can withstand the fast transient interference with severity level IV specified in GB/T14598.10.
3) It can withstand the pulse group interference with severity level III specified in GB/T14598.13.
4) It can withstand the ESD interference of the severity level IV specified in GB/T14598.14.
2.12. Insulation performance
1) Insulation resistance
The insulation resistance between all input signals and the shell is not less than 100MΩ under standard test conditions.
2) Dielectric strength
The dielectric strength between all analog input signals of the device and the circuits without electrical connection can withstand AC 50Hz, voltage 2kV (effective value), and 1min test without insulation breakdown or flashover.
The switching value of the device to the ground and the dielectric strength between the circuits without electrical connection can withstand AC 50Hz, voltage 500V (effective value), and the test lasts 1min without insulation breakdown or flashover.
The dielectric strength between the GPS time synchronization signal and the ground and the circuits without electrical connection can withstand AC 50Hz, voltage 500V (effective value), and test lasting 1min without insulation breakdown or flashover.
2.13. Environmental conditions
1) Ambient temperature: -10ºC~+55ºC.
2) Relative humidity: 5%~95%.
3) Atmospheric pressure: 86kPa~106kPa.
4) Transportation and storage temperature: -25ºC~+70ºC.
2.14. Communication
Support standard TCP/IP protocol and IEC870-5-103 protocol.
1) Communication method: networking with the fault information management system via Ethernet. networking with multi-level dispatching via Ethernet.
2) Communication rate: 10/100M.
2.15. Power supply and power consumption
1) AC power supply:
Rated voltage: single-phase 220V, allowable deviation -20%~+15%, frequency 50Hz, allowable deviation 3Hz.
2) Power consumption: working power supply: ≤50W.