Informasi dasar.
Usage
Communication Relay
Protective Characteristics
Enclosed Rlay
Action Principle
Numeric Type
Type
Electric Parameter Relay
Rated DC Voltage
220V (110V Orders Indicate)
Interface
Ethernet and Dual 485 Ports
AC Current
5A ((1A Orders Indicate)
Rated Frequency
50Hz (60Hz Orders Indicate)
Zero-Sequence Voltage
100V
Merek Dagang
Guotong Electric
Paket Transportasi
Carton, Export Type Packing
Spesifikasi
ISO 9001 certificated
Asal
Changsha City, Hunan Province
Deskripsi Produk
1. Scope of Application
GTT-84X series digital transformer protection measurement and control device, mainly applies to 110kV and the following various voltage levels two / three coil transformer protection device. GTT-84(2) X series device includes: GTT-84(2)1 differential protection device, GTT-84(2)2 high backup protection measurement and control device is composed of transformer protection system.2. Function and CharacteristicsFunctional Configuration Table
Classify | Function Name | 84(2)1 | 822 | 842 | 84(2)3 |
Protection Function | Sent velocity broken | √ | | | |
Percentage differential protection(secondary harmonic restraint) | √ | | | |
TA disconnexion blocking percentage differential protection | √ | | | |
The differential current limit alarm | √ | | | |
Compound voltage blocking Two sections of three time overcurrent protection | | √ | √ | √ |
Overcurrent inverse time lag | | √ | √ | √ |
Negative sequence over current | | √ | √ | √ |
Overload | | √ | √ | √ |
Overload blocking voltage regulation | | √ | √ | √ |
Overload start air-cooled | | √ | √ | √ |
Proper signal | | √ | √ | |
Transformer tap position and on-load voltage regulation | √ | | | |
Zero-sequence voltage protection | | √ | √ | √ |
A three zero-sequence current protection | | √ | | |
Composite voltage components | | √ | √ | √ |
TV disconnection detect | | √ | √ | √ |
Operation circuit | Power independent containing anti adjustable locking function operation circuit | | √ | √ | √ |
Control circuit abnormal alarm | | √ | √ | √ |
Measurement And Control Function | 16 way remote signal input, device remote signal shift, accident remote signal | √ | √ | √ | √ |
Normal circuit break remote deciliter | √ | √ | √ | √ |
P, Q, IA, IB, IC, Ua, Ub, Uc, COSΦ, f | | √ | √ | √ |
Switch accident in statistics and event SOE etc | √ | √ | √ | √ |
Fault recorder | √ | √ | √ | √ |
Time hack | Realize GPS time hack,network time hack | √ | √ | √ | √ |
Communication | Ethernet, RS232/485 communication interface | √ | √ | √ | √ |
Main Features
4U standard aluminum chassis, combination of plug-in structure, after the plug case, each functional module design alone, electricity are completely separated, strong anti-interference ability, convenient field maintenance;CPU intelligent card design, open into the open plug-ins to achieve real-time complete self-test; can be detected in each relay coil;Plug-in based on CANBUS bus links between, reduce the connection between the connector plug, bad real time detection;Double 32 computer systems, the redundant system; protection function using the Dezhou Instrument Company produced the 32 bit floating-point DSP processor, program and data in the chip operation; operation speed, high reliability;Man-machine interface, network communication and other management functions by Philips Company produced 32 ARM MCU, speed, on-chip memory capacity big, strong ability of network interface;16 AD sampling, high measuring precision; weekly wave 48 sampling points, harmonic processing capability;Protection module using computer assisted graphical interface design is convenient for the two series of products development and functional modifications, flexible, efficient engineering design;Complete the circuit breaker control circuit is provided with a remote control, jump, closing, spring without stored energy blocking close function etc;Use 192*64 monochrome graphic LCD, Chinese menu interface; the flexibility to choose double Ethernet and double 485 interface;Can save at least 500 report recent incidents and operation report;User management module using real-time multitask operating system, network interface, tasks such as real-time;Can store 10 sets of protection setting value, double value zone self-test and mutual combination, setting change safely and convenient.Based on electric power industry standard DL / T667-1999 (IEC 60870-5-103) standard communication protocol, and convenient with microcomputer monitoring or protect management computer network communication.
3. Technical Index3.1 Rated Data Rated AC voltage: 220V (110V orders indicate) allowable deviation +15%,-20%
a. Rated AC data: phase voltage 100/√3V
Zero-sequence voltage 100V
AC current 5A (1A orders indicate)
Rated frequency 50Hz (60Hz orders indicate)
b. Thermal Stability:
AC voltage circuit: long time operation 1.4Un
AC current circuit: long time operation 2In
10s 20In
1s 40In3.2 Consumption
AC voltage circuit: phase≤0.5VA;AC current circuit: when In=5A ,phase ≤1VA;when In=1A, phase≤0.5VA;Protection power supply circuit: when in normal work, ≤10W; in protection action, ≤15W.
3.3 Environment Condition
a. Environment temperature:
Work: -25ºC~+55ºC
Storage: -25ºC~+70ºC,Relative humidity of not more than 80%,
the ambient air does not contain acidic, alkaline or other corrosive and explosive gases
prevent rain, snow indoor; the limit without applying excitation volume, device is not
irreversible change in appearance, temperature after recovery, device can work normally.
b. Relative humidity: Most of the wet mean monthly maximum relative humidity is 90%,
and the monthly mean minimum temperature is 25ºC and the surface without gel. When
the maximum temperature is +40ºC, the average maximum humidity is not more than 50%.
c. Atmospheric pressure:80kPa~110kPa(Altitude < 2km).
Product Picture:
Factory Show
Product Field-running Picture
Alamat:
A4 Building, Lugu International Industrial Park, No. 229, Tongzipo West Road, High-Tech Development Zone, Changsha, Hunan, China
Jenis Usaha:
Produsen/Pabrik
Jangkauan Bisnis:
Listrik & Elektronik
Sertifikasi Sistem Manajemen:
ISO 9001, ISO 9000
Pengenalan Perusahaan:
Changsha Guotong Electrical Technology Co. Ltd. Adalah R& terpadu perusahaan khusus; D, desain, produksi dan penjualan microcomputer serta sistem otomatisasi terintegrasi yang cocok untuk hydropower, pompa dan pusat tenaga termal, dll
sebagai perusahaan yang berkembang cepat, Guotong telah mengoptimalkan produknya. Saat ini, seri GT8000 telah menjadi menempel yang paling penting, yang dapat diterapkan ke substation transformer, tenaga listrik, stasiun pembangkit listrik, tenaga listrik, pabrik semen, rel kereta api, kimia, perlindungan lingkungan, baja, Substation batubara dan tambang dll. dari 110 km dan di bawah. Lebih jauh lagi, Guotong Electric berhasil membangun jaringan pemasaran multi-level di sekitar dalam dan luar negeri, yang mencakup sejumlah negara dan kawasan, seperti Timur Tengah, Eropa Timur, Afrika Selatan, Asia Tenggara, dan Amerika Selatan.
Guotong mengikuti semangat berorientasi pasar dan inovasi sebagai kekuatan dan menjaga kepemimpinan teknologi, mengubah ilmu pengetahuan dan teknologi menjadi kenyataan. Dengan demikian Guotong memperoleh sejumlah hak kekayaan intelektual dan penghargaan yang diakui secara internasional.