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Low voltage thyristor switching switch
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The principle of KS/TSC silicon controlled switch (thyristor) is to ensure that the capacitor bank is put into operation near the voltage zero zone by detecting and controlling the zero crossing of voltage and current, so as to avoid the generation of closing inrush current, and the disconnection is completed when the current is zero crossing, so as to avoid the occurrence of transient over-voltage, which meets the requirements of zero crossing switching of capacitors in terms of function. In addition, there is no limit on the trigger times of silicon controlled rectifier, It can realize quasi dynamic compensation (the response time is in the millisecond level), so it is suitable for the frequent switching of capacitors, and is very suitable for the frequently changing load situation. Compared with the AC contactor, it has a qualitative leap. The advantage of SCR switch is that it can realize zero crossing switching, quick action and quick response, and is mostly used in the occasion of dynamic compensation.
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The principle of KS/TSC silicon controlled switch (thyristor) is to ensure that the capacitor bank is put into operation near the voltage zero zone by detecting and controlling the zero crossing of voltage and current, so as to avoid the generation of closing inrush current, and the disconnection is completed when the current is zero crossing, so as to avoid the occurrence of transient over-voltage, which meets the requirements of zero crossing switching of capacitors in terms of function. In addition, there is no limit on the trigger times of silicon controlled rectifier, It can realize quasi dynamic compensation (the response time is in the millisecond level), so it is suitable for the frequent switching of capacitors, and is very suitable for the frequently changing load situation. Compared with the AC contactor, it has a qualitative leap. The advantage of SCR switch is that it can realize zero crossing switching, quick action and quick response, and is mostly used in the occasion of dynamic compensation.
● Rated working voltage: 400V/230V+20%;
● Voltage distortion rate: ≤ 5%;
● Rated frequency: 50Hz+5;
● Rated insulation voltage: 690V;
● Service life: more than 500000 times;
● Control capacity: three-phase ≤ 60kvar: △ type connection; Single phase ≤ 20kvar: Y-shaped connection;
● Contact voltage drop: ≤ 100mV;
● Circuit power consumption: ≤ 3VA;
● Response time: ≤ 20ms;
● Contact withstand voltage: ≥ 1600V;
● Overall dimension: 90mmx165.5mmx77.5mm;
● Interval between each switching on and off: ≥ 1s;
● Conduction impedance ≤ 0.003 Ω;
● Minimum voltage signal DC9.5V/1.3mA; Rated signal voltage DC12V/5mA;
● Interval between two consecutive connections: ≥ 100 seconds;
Note: When the switch is connected to the power supply or disconnected, the switch must be connected again with a delay of 100 seconds (determined internally)
● KD-LK low-voltage reactor is divided into three-phase and single-phase, both of which are iron core dry type.
● The iron core is made of imported cold rolled oriented silicon steel sheets with high quality and low loss. The core column is divided into uniform sections by multiple air gaps, and the air gaps are separated by epoxy laminated glass cloth plates to ensure that the reactance air gap does not change during operation.
● The coil is wound with H-class or C-class enamelled flat copper wire, closely and evenly arranged, without insulating layer on the surface, with excellent aesthetic feeling and good heat dissipation performance.
● After the coil and iron core of the reactor are assembled into a whole, the process of pre drying - → vacuum impregnation - → hot drying and curing is followed. Level H impregnation paint is used to firmly combine the coil and iron core of the reactor, which not only greatly reduces the noise during operation, but also has a very high heat resistance level, which can ensure that the reactor can safely operate without noise under high temperature.
● The fasteners of reactor core column shall be made of non-magnetic materials to ensure that the reactor has higher quality factor, lower temperature rise and better filtering effect.
● Anti corrosion treatment is adopted for exposed parts, and cold pressed copper tube terminals are adopted for outgoing terminals.
● The altitude shall not exceed 2000 meters (if it is more than 2000 meters, it shall be corrected according to the standard);
● Ambient temperature: - 40~+50C;
● The installation site shall be free of violent mechanical vibration, harmful gas and steam, conductive and explosive dust;
● The continuous operation voltage is 1.0Un, and the maximum long-term over-voltage does not exceed 1.1Un;
● Steady state overcurrent (including harmonic current) shall not exceed 1.5In
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A. Co compensation
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B. Co compensation
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Model |
Supporting capacitance/kvar
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Model
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Supporting capacitance/kvar
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| KS/TSC-5A | 5 | KS/TSC-5Y | 5 |
| KS/TSC-10A | 10 | KS/TSC-10Y | 10 |
| KS/TSC-15A | 15 | KS/TSC-15Y | 15 |
| KS/TSC-20A | 20 | KS/TSC-20Y | 20 |
| KS/TSC-25A | 25 | KS/TSC-25Y | 25 |
| KS/TSC-30A | 30 | KS/TSC-30Y | 30 |
| KS/TSC-40A | 40 | ||
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