High frequency in shanxi hall current temperature sensor price, quantity is with preferential treatment

The classification of the current temperature sensor

current temperature sensor on the basis of measuring principle is different, the main can be divided into: the shunt, electromagnetic current transformer, electronic current transformer, etc. Compared with electromagnetic current temperature sensor, electronic current transformer is no ferromagnetic saturation, transmission band width, the secondary load capacity is small, small size, light weight, is the development direction of current temperature sensor. Temperature of the optical fiber current sensor is based on Faraday magnetic photosynthetic efficiency should be, new current temperature sensor with optical fiber as medium. When linear polarized light propagation in the medium, if in the parallel light on the direction of propagation of a strong magnetic field, the direction of light vibration will deflect, bits of deflection Angle and magnetic induction intensity B and l is proportional to the product of the length of the cross media, namely bits = V * B * l, V is called the verdet constant proportion coefficient, related to the characteristic of medium and light frequency. Deflection depends on the dielectric properties and the direction of the magnetic field. The above phenomenon called the Faraday effect. In 1845 by M. Faraday discovered.

current temperature sensor using note

the better precision of current voltage temperature sensor is under the condition of the original edge rating, so when the measured current is higher than the current rating of temperature sensor, should choose the corresponding big temperature sensor; When the measured voltage is higher than the voltage rating, temperature sensor should readjust current limiting resistor. When the measured current is lower than the rating of 1/2 below, in order to get a better precision, can use more than the number of circle.

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the current performance of the temperature sensor

performance specification describes how the current temperature sensor in the required environment interaction and run. Measuring range is temperature sensor to measure larger electric current. The input voltage is voltage needed for the operating equipment. Frequency range describes the range of temperature sensors can operate on input frequency value. Applying a corresponding incentive and its input response time is the time interval between the output signal. Isolation voltage said temperature sensor can handle larger voltage to protect connected equipment. Higher than the specifications of the voltage can be damaged by temperature sensor and lead to inaccurate measurements. Accuracy to measure the degree of close to measured values and the real value. Shall regularly temperature sensor calibration current, in order to ensure accurate measurement. Work describes the design of the temperature sensor work temperature range. Exposure to the temperature of the outside this range may damage the temperature sensor

the connection mode of current temperature sensor

1, a phase type wiring, used to measure the phase or three phase ( Through the switch) Electric current.

2, differential connection, usually used in the relay protection circuit, such as lines or transverse differential protection, motor protection and capacitor and it can reflect all kinds of short circuit.

3, star connection, measuring load balanced or unbalanced three-phase power system of three phase current, the connection mode of three phase, two phase short circuit and single-phase grounding short circuit with the same sensitivity, high reliability.

4, incomplete star connection, also calls the v-shaped connection, used to measure the load balanced or unbalanced three-phase three-wire system line current, current temperature sensor is not completely y connection of relay protection circuit, can seal all kinds of alternate with short circuit protection.