Introduction of Microcomputer Relay Protection Tester
The microcomputer relay protection tester is a new intelligent test instrument HSXJBY-I microcomputer relay protection calibrator. The previous relay protection test tools were mainly composed of voltage regulators and phase shifters, which were bulky and low in precision and could not meet the verification work of modern microcomputer relay protection. With the continuous development of science and technology, microcomputer relay protection has been widely used in various fields such as line protection, main transformer differential protection, excitation control, etc., and substation comprehensive automation has become the mainstream.
The microcomputer relay protection tester is called: microcomputer relay protection instrument, relay protection tester, three-phase relay protection tester, relay protection tester, three-phase relay protection tester, three-phase relay protection calibrator, relay protection calibrator, three-phase relay calibrator, relay protection instrument.
The microcomputer relay protection tester is a new intelligent test instrument HSXJBY-I microcomputer relay protection calibrator. The previous relay protection test tools were mainly composed of voltage regulators and phase shifters. They were bulky and had low precision, and could not meet the verification work of modern microcomputer relay protection. With the continuous development of science and technology, microcomputer relay protection has been widely used in various fields such as line protection, main transformer differential protection, excitation control, etc., and substation comprehensive automation has become the mainstream.
The modern microcomputer relay protection tester can be divided into two forms. One is to use the traditional OCL power amplifier, which is large in size and weighs about 25Kg. It is relatively bulky. The power amplifier tube works in the amplification area. It is easy to be damaged over time, and the dynamic range is narrow and the precision is not high. The other is to use a switching power supply, and the power amplifier uses a digital power amplifier, which is small in size, light in weight, and high in efficiency. It is the development direction of the relay protection tester.
It can test various types of voltage, current, frequency, power, impedance, harmonic, differential, synchronous and other relays manually or automatically, and can simulate various types of faults to perform interval, zero-sequence protection device fixed value verification and a whole set of protection device tests, and can automatically scan microcomputer and digital transformers, generator-transformer differential protection ratio braking curves, and has GPS triggering function.
Relay protection microcomputer test equipment is an important test tool to ensure the safe and reliable operation of the power system. With the rapid development of computer technology, microelectronics technology, and power electronics technology, it is an inevitable trend for technological advancement to continuously launch new high-performance microcomputer relay protection test equipment using the latest technical achievements.
Three-phase microcomputer relay protection tester test equipment is an important test tool to ensure the safe and reliable operation of the power system. With the rapid development of computer technology, microelectronics technology, and power electronics technology, it is an inevitable trend for technological advancement to continuously launch new high-performance relay protection test equipment using the latest technical achievements. The three-phase relay protection tester is based on the “Technical Requirements for Microcomputer Relay Protection Experimental Equipment” issued by the former Ministry of Electric Power, carefully summarizing the development and production experience of previous generations of products, and adopting modern and latest digital technology, high-precision electronic devices, microcomputer systems, new circuits, and new structures. It can independently complete equipment tests in professional fields such as microcomputer protection, relay protection, excitation, measurement, and fault recording, and is widely used in scientific research, production, and electrical test sites in industries such as electricity, petrochemicals, metallurgy, railways, aviation, and military.
The microcomputer relay protection test instrument is divided into two circuits: the main circuit and the auxiliary circuit. The main circuit uses a large knob to adjust, and the auxiliary circuit uses a small knob to adjust. The main circuit controls various output quantities through the “output selection” button switch on the panel, and each time an output is switched, the digital voltage/current meter on the instrument can automatically monitor its output value. The auxiliary circuit directly adjusts the output through the output switch control, and the measurement can be measured with an external multimeter.
GH-6403 three-phase relay protection tester can perform AC test, DC test, low-cycle synchronization, time measurement, power impedance, differential test, superimposed harmonics, whole group test, impedance ladder, zero-sequence protection, system configuration and other test items.
The overvoltage relay test of the three-phase relay protection tester adopts the “AC test” program. When the rated voltage of the relay is less than 120V, the single-phase voltage value can be used as a variable for testing.