The Application of Split Core Current Transformer

The split-core current transformer has a wide range of applications in power systems, mainly including the following aspects:

1. Power Metering

Accurate measurement of electrical energy is crucial in power systems. Split-core current transformers can convert high voltage currents in power systems into lower currents, ensuring the accuracy and safety of metering. Split-core current transformers are available with accuracy of 0.2, 0.5S, 0.5, and 1.

2. Protection Operations

Protection operations such as over-current protection and ground protection are often necessary in power systems. Split-core current transformers can provide accurate current information for these protection operations. 

Protection grades include 5P20, 5P10, 10P10, 10P15, and 10P20.

3. Monitoring and Control

Split-core current transformers can also be used for monitoring and controlling currents in power systems to improve circuit stability and reliability. This includes transformer energy consumption monitoring systems and switch-gear energy consumption monitoring systems.

In summary, split-core current transformers play a crucial role as important power measuring instruments in power systems. They provide accurate current information, ensure the safety and reliability of circuits and metering accuracy, while reducing equipment costs and enhancing the stability and reliability of power systems.

GF106 CT TEST EQUIPMENT WITH KNEE POINT

GF106 CT test set (CT Analyzer) is a current transformer test equipment specially designed for current transformer characteristic test and with additional PT test functions for reference test. GF106 CT test equipment is mainly used for field testing, it can finish the measurements (M) and protection (P) class CT, PT and TYP class CT. GF106 CT test equipment can also guessed CT ratio test equipment because of the additional functions including ratio and angle differential tests (the measurement points in the IEC60044 & IEC61869 standard), FS and inductance, steady-state parameters, peak error and transient parameters, etc. Adopt 5.6 inch LCD, self-equipped mini type printer supporting field printing; supporting to use USB flash disk to download data, with simple and convenient operation.

FEATURES
■ Portability: weight <8kg;
■ In-built PT test functions;
■ CT ratio error test accuracy 0.05%;
■ The device can store 3000 groups of test data;
■ With it thermal printer, printing test results on site;
■ Parameters such as knee point current and voltage;
■ Parameters such as 10% error curve, 5% error curve;
■ Test CT according to IEC60044-1/6, IEC61869-2, ANSI C57.13;
■ Steady and transient state characteristic tests of various types of CT/PT;
■ No external other auxiliary equipment, stand-alone to complete all test items;
■ The use of advanced power technology, the test knee point reaches up to 45kV;
■ The testing data can be transferred to PC by USB disk and produce test report;
■ CT easy to test, all the tests are using the same wire connection except burden test;

APPLICATION
■ Power plant;
■ Electrical laboratory;
■ Metrological service center;
■ Electricity power bureau & power company;
■ National Metrology and testing department;
■ Power engineering commissioning company;
■ Current transformer and voltage transformer factory;
■ Electrical Department of industrial and mining enterprises;

T-212 circuit breaker 200A contact resistance tester with printer

 T-212 circuit breaker 200A contact resistance tester adopts the top open structure or vehicle mounted horizontal chassis. The advantages are as follows: more small volume, more light weight, more strong functions, and the simple operation.

It designed for field testing. The high output voltage is 10V, large power for testing all kinds of circuit breaker. Display is 160*128 large LCD screen. Test current optionally, test time can be set, test process dynamic tips,suitable for different working environment. It can save 200 test record, the records can be printed and uploaded to the computer. It is an excellent circuit breaker maintenance and testing tool.

T-3630 5KV 10KV 15KV high voltage insulation resistance tester

The model T-3630 high voltage insulation resistance tester also known as megohmmeter, high voltage insulation resistance tester, etc., for the insulation resistance testing. The instrument has a large LCD screen gray backlight display, data storage, data access, alarm, automatic shutdown and other functions. At the same time, it also has the function of measuring DC voltage, AC voltage, absorption ratio and polarization index of DC voltage. The electrical test equipment is beautiful and upscale, has a wide range, high resolution, convenient operation, easy to carry, accurate, reliable, stable performance, strong anti-interference ability.

Moreover, T-3630 HV insulation resistance tester has a shockproof, dustproof, moisture-proof structure and is a commonly used and indispensable instrument for telecommunications, electricity, meteorology, computer rooms, oil fields, electromechanical installation and maintenance, and industrial enterprises that use electricity as industrial power or energy. It is suitable for measuring the resistance value of various insulating materials and the insulation resistance of transformers, motors, cables and electrical equipment.

At the same time, it can output a variety of different voltage levels with the step-adjusting voltage function (for example, 15KV models can generate 15KV levels, which can be used more widely). T-3630 high voltage insulation tester consists of large scale integrated circuits. The output power of the meter is large, and the output voltage level is a lot (with 6 voltage levels). DC voltage measurement range is from 0 to 1000V, AC voltage measurement range is from 0 to 750V. DC current measurement range is from 100pA to 6mA. Capacitance measurement range is from 10nF to 50uF.

 

FU2200A Three phase RS485 & ethernet digital power meter with data logger & Modbus_RTU

FU2200A ethernet digital power meter with data logger is a three-phase multifunction power and energy meter manufactured by GFUVE GROUP. It provides excellent value for monitoring power and energy management systems. It may be used as data gathering devices for intelligent power distribution or plant automation systems. All monitored data is available via a standard digital RS485 communication port, which is based on the Modbus RTU protocol. FU2200A ethernet power meter has the PC software and the data logger function, which can set by end users from 1min to 60min intervals to record. You can read the data through a PC. Also, you can share the data in the Internet LAN. By the way, it can measure the harmonics to from 2nd to 63rd. With a wide range of models to choose from, the FU2200A power meter offers unparalleled value and functionality. It has been used many in electric HV and LV Switch cabinet.

FEATURES

■ 4 quadrant energy;

■ Three years warranty;

■ Power quality analysis;

■ With load curve function;

■ Web browse data function;

■ Unbalance & phase angles;

■ Max/Min log with timestamp;

■ Data logging for all parameter;

■ With PC management software;

■ Demands and Multi-tariff energy;

■ True-RMS measuring parameters;

■ TOU, 4 Tariffs, 6 Seasons, 6 Schedules;

■ 2MB onboard memory, Extended to 16M;

■ ANSI and IEC 0.2 or 0.5S accuracy class;

■ High-speed RS485, 10/100M Ethernet port;

■ Time interval set from 1minute to 60minutes;

■ Measure individual harmonics from 2nd to 63rd;

T-213 20A transformer winding dc resistance tester with printer & 12m test cable

An important test item for measuring the DC resistance of transformer windings is ranked second in the transformer test items in the regulations. The purpose of measuring the DC resistance of transformer windings:

(1) Check the welding quality of the winding (2) Check for good contact at all positions of the tap changer (3) Check for any breaks in the winding or outgoing line (4) Check for the correctness of the parallel branch circuit, whether there is one or several wire breaks in the winding composed of several parallel wires (5) Check for short circuits between layers and turns.

Please you select model T-213(single phase) or T-213S(three Phase).

T-203H THREE PHASE TRANSFORMER TURNS RATIO TESTER

GFUVE T-203H transformer turns ratio tester(TTR tester ) is a revolutionary instrument designed to perform three-phase turns ratio measurements using step-up excitation. A single three-phase lead-set connection is all that is required to complete three-phase tests in less than 1 minute! The T-203H is capable of three-phase excitation and can induce up to 160 V on the primary winding, overcoming the voltage dependence seen on larger transformers. The three-phase source also allows you to test phase shifting and zigzag transformers, and provides you with a guaranteed accuracy of ±0.1 % from -10 °C to +50 °C. 

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