Thursday, March 7, 2024

TEST-330 three phase microcomputer protection relay test equipment with Differential Protective Relay & distance relay testing

TEST-330 three phase microcomputer protection relay test equipment is the highly efficient relay tester of our company. It is produced by referring to Technical Condition for "DL/T624-2010" Microcomputer Relay & Protection Test Device issued by the original Power Department, extensively listening to the opinions of users, carefully reviewing the developing and producing experience of the former generations of products and adopting the modern latest digital technology, high precision electronic apparatus, microcomputer system and new circuit and new structure. This model relay test equipment can independently finish device test in professional fields of microcomputer protection, relay protection, excitation, metering, fault recording, etc. and is widely applied to scientific research, production and electrical test sites in electric power, petrochemical, metallurgy, railway, aviation and military industries.

TEST ITEM

2   Time Delay Starting or Closing Relay Yes

21 Distance Relay Yes

24 Over-Excitation Relay Yes

25 Synchronizing or Synchronism-Check Device Yes

27/27N Undervoltage Relay Yes

30 Annunciator Relay Yes

32 Directional Power Relay Yes

36 Polarity or Polarizing Voltage Devices Yes

37 Undercurrent or Underpower Relay Yes

40 Field Relay Yes

46 Reverse-phase or Phase-Balance Current Relay Yes

47 Phase-Sequence Voltage Relay Yes

50/50N Instantaneous Overcurrent or Rate of Rise, Relay Yes

51/51N AC Time Overcurrent Relay Yes

52 AC Circuit Breaker Yes

53 Exciter or DC Generator Relay Yes

55 Power Factor Relay Yes

56 Field Application Relay Yes

58 Rectification Failure Relay Yes

59/59N Overvoltage Relay Yes

60 Voltage or Current Balance Relay Yes

61 Machine Split Phase Current Balance Yes

62 Time-Delay Stopping or Opening Relay Yes

64 Ground (Earth) Detector Relay Yes

67/67N AC Directional Overcurrent Relay Yes

68 Blocking Relay Yes

74 Alarm Relay Yes

76 DC Overcurrent Relay Yes

78 Phase-Angle Measuring or Out-of-Step Protective Relay Yes

79 AC Reclosing Relay Yes

81/81U/O/R Frequency Relay Yes

82 DC Reclosing Relay Yes

85 Carrier or Pilot-Wire Receiver Relay Yes

86 Lockout Relay Yes

87 Differential Protective Relay Yes

91 Voltage Directional Relay Yes

92 Voltage and Power Directional Relay Yes

94 Tripping Relay Yes




Tuesday, February 20, 2024

TEST-750 overvoltage and overcurrent relay tester

This model TEST-750 is one portable design device for protective overvoltage relay testing and overcurrent relay testing. large power, operate simply, test quickly, suite for electricity power utilities, Power engineering commissioning company and power plant etc. AC voltage output 0-250V, DC voltage output 0-300V; AC current output 0-250A; LCD display and with timer 0.1ms resolution. high precision 0.2%.


 

Sunday, February 4, 2024

T-209 high voltage circuit breaker analyzer with Transducer and Trigger

T-209 circuit breaker analyzer is used for performing electrical and mechanical characteristic of high voltage, medium voltage circuit breaker, switch and contactor. The T-209 CB test set design offers powerful technology that assists the user to achieve efficient and reliable circuit breaker testing, All inputs and outputs on the instrument are designed to withstand the challenging environment in high-voltage substations and industrial environments.Galvanically isolated inputs and outputs makes it possible to perform all relevant measurements in one test, eliminating the need for new setup and re-connections. The model T-209 circuit breaker tester can test the vacuum circuit breaker ,sf6, oil circuit breaker, GIS and etc. the test parameters include, close or open time ,delta time ,bounce time ,bounce cycles, multi-operation, stroke , gap ,over-travel ,overshoot ,rebound and the speed, with the ability of test results and graph display.

FUNCTION & FEATURES

■ Built-in DC output for motor driving;

■ Help : the instrument has internal help topic;

■ Use a digital rotary transducer for measuring angle;

■ Transducer: with one analog transducer test ability;

■ Measure the motor current curve while motor driving;

■ HMI: via keypad and a large transflective LCD display;

■ Print: with internal installed 58mm wide thermal printer;

■ Standard : with the standard of DL/T846.3-2004 (P.R.C.);

■ Immunity : withstand the 550KV electrostatic environment;

■ Operate Close, Open, O-C-O, O-C, C-O control sequences;

■ Recording: with twelve channels ,coil current and transducer;

■ Test the mechanical characteristic operated by CB manually;

■ Built-in DC control output, can used for action voltage testing;

■ Communication: with RS232 and USB communication interface;

■ Power: with internal dc power ,the voltage ranges from 15v to 250v;

■ Measure the co-operate time between 6 main- and 6 auxiliary contacts;

■ USB FLASH: USB and RS232 interface for data communication with the PC;

■ Built-in DC/AC current sensor for measuring close and open control current;

■ Memory: with a SD card of 2GB,the maximum storage ability is 100 test results;

■ Speed: supply series of speed definition with editable and un-editable selection;

■ Trigger: with four triggers to start the recording ,channels state, voltage, current and transducer;

■ Measure the circuit breaker time parameters (close, open, asynchronous, bounce) of 12 main contacts;


Wednesday, January 31, 2024

GF1061 smart CT PT analyzer with PC control software

GF1061 smart CT PT analyzer is mainly used for field or lab testing, it can finish the measurements (M) and protection (P) class CT, PT and TYP class CT. With PC control software, Adopt 7 inch touch TFT LCD, self-equipped mini type printer supporting field printing; supporting to use USB flash disk to download data or RS232 port to PC control. it can test ct ratio, phase error, polarity, winding resistance, burden, excitation etc.  ct 1-50000, pt 1-10000. This model GF1061 CT PT Analyzer is the most complete and easy-to-use testing system for protection and metering CTs according to IEEE C57.13 and IEC60044 & IEC61869 standards..Know more about us from: www.gfuvegroup.com


 

Sunday, January 21, 2024

S50 10M Hz bandwidth 1200A 1mV/A & 1mA/A output AC Current Clamp ON CT Probe

The round jaw design on the S50 Series AC current clamp on CT along with the high content nickel metal core makes them well suited for power quality applications where high accuracy and low phase shift along with wide frequency are important from 10Hz to 10MHz. Measurement range is 1mA to 1200A. The S50 is a general purpose 1200A AC current clamp on CT designed for use with DMMs, power loggers and energy meter calibration instruments that have a current input. It has a 1000:1 ratio and output of 1mA per amp or 1mV per amp measured in the jaw. The S50 clamp on CT has an integral 2.5m lead terminated. The rounded jaw design on this current clamp makes it well-suited for power applications where high accuracy 0.1% and low phase shift and wide frequency response are important.





Sunday, January 14, 2024

LZCG530-10 HIGH PRECISION 0.2S 100/5A 20KV MEDIUM VOLTAGE CURRENT TRANSF...

The Model LZCG530-10 series straight-through ct is a ring type resin casting current transformer. It is suitable for current measurement and microcomputer protection of electrical equipment in 10KV and 35KV AC power system. It is widely used in not only compact fully insulated ring network switchgears such as ABB-Safe Ring/Safe Plus, Unstitch, Schneider RM6, SM6, Siemens 8DJ10/8DH10, Simosec, FBX, Fluokit, Omar Garbo GA, GAE; SEL TPS(Q); VEI Unifluorc; Eaton SVS/12 ring network, but also cable distribution boxes because of its small size, light weight, operable and convenient installation. It is very convenient that the transformer can be directly installed at the inlet and outlet cables.New magnetic material is taken to be the core of the current transformer, which has high magnetic permeability, low saturation magnetization and good stability. Therefore, the measuring accuracy is higher and the instrument security factor is lower. Since the high quality silicon processed by advanced technology is taken to be the core of the protection windings, which assured the accuracy limit factor is higher.
The semicircular ring core and secondary windings are vacuum poured by high quality epoxide resin in the fire retardant plastic casing, which has the characteristic of moisture proof, stable performance and dispensing with maintenance.Small size, light weight, small footprint, fixed in the ring network switchgear cable.The cable can cross the current transformer through its internal poles quickly and uniformly.
The Cast Resin Straight-Through Current Transformer can be divided several kinds according to the various current ratio, accuracy and rated loads. The specific parameters are showed in the corresponding to each model parameter tables.
All of our current transformers are strictly comply IEC60044-1, IEC 61869-2, NTC 2205, GB1208-2006, ANSI/IEEE C57.13.

Tuesday, January 2, 2024

GF2011 1000A wireless high voltage clamp current meter with hotstick


GF2011 High voltage portable clamp current meter specially designed and manufactured for High voltage AC current measurement, low voltage AC current, current leakage measurement, online AC current measurement. It consists of special high voltage detector, wireless receiver and high voltage insulation rod, portable box.

Apply to power plant, substation, industrial and mining enterprise, inspection station, electrician maintenance department for current sensing and field working for power live line measurement.

FEATURES

■ Easy to install and remove with power on;

■ Clamp jaw 50mm, suite for less than 69KV power line;

■ Can accurately measure 0.00mA-1200A current or leakage current;

■ Adopt latest CT technology and integrated mask digital technology;

■ Have peak value maintaining, data maintaining, data memory function;

■ Wireless transmission distance 30m, can transmit through building barriers;

■ Integrated design ensures uninterrupted year-round high precision, high reliability and high stability test;

■ Insulation rod has the characteristics of moisture resistance, high temperature resistance, impact resistance, bending resistance, high insulation and scalability;

■ Testing high and low voltage changing ratio, respectively test the first loop and secondary loop high and low voltage current, and then obtain the voltage change through manually calculation;