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Description
| ◆Complete the transformer substation simulation in the operation ways of all the fault lose… |
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First, use ZYM-4 analog power circuit breaker is mainly used for power system relay protection devices or sets of screen tests of the entire group can be a true simulation of the circuit breaker closing time jump. In the entire group of test and simulate high-voltage circuit breaker trip switch, to avoid duplication of the entire group of test circuit breaker caused the adverse effects of repeated division. Second, the principle of circuit breakers The circuit breaker using digital circuitry, the time set for the digital dial code, enabling simulation of breaker closing time is set, three-phase / phase operation selected, the input signal logic control functions, thus simulating the circuit breaker jump, closing action. Third, the use of (1) The jump-closing apparatus with power supply voltage DC220V DC110V two steps from the application of resistance testing before choosing a match with the input voltage. (2) the simulation can simulate the split-phase operation of circuit breaker circuit breakers, can also be simulated three-phase breaker, jump impedance selection switch 440 in Europe, 220 Euro, 110 Euro, 55 Euro arbitrary choice, when the simulation phase breaker, its jump-closing combined input of A, A hop, B Hop, B jump, C co, C jump; when the analog three-phase breaker, the closing of its input terminals to jump triple jump, triple. In addition, the surface Board also has a manual switch and manual trip button, and closing with dancing lights, namely, A Hop, B together, C together three red letter Lights and A jump, B jump, C jump three green lights, circuit breakers, when operating in a simulated three-phase, A, B, C three-phase signal at the same time that Off. (3) in a simulated circuit with relay A, B, C the output of two groups into contact with the operating power is completely isolated, with microprocessor-based relay With the protection of test equipment. (4) can simulate analog circuit breaker tripping and closing time, time is set to DIP switch settings, and high accuracy. Closing time setting range jump 20-200ms. Fourth, technical indicators Jump closing operation of power supply voltage: DC220V, DC110V ± 10% Jump closing impedance selection: 440Ω, 220Ω, 110Ω, 55Ω Jump-closing timing: 20-200ms Analog circuit breaker normally closed / normally open contact capacity: AC220V/5A. |
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ZYM-4 analog circuit breaker