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Ac Resonant Test System For Cvt

(1.1)
Supplier From China
Jul-31-21

Product Introduction
Capacitive voltage transformer (CVT) in calibration the test must be conducted under the condition of 50Hz frequency complex geographical condition on site at the same time the traditional experiment device is difficult to meet the requirements of on-site handling testing series resonance booster device is first used in domestic field tunable resonance device has been widely used in domestic 500 kv and below the field calibration of capacitor voltage transformer.


Product Parameters
Technical parameters
Rated Capacity 80kVA
rated voltage 160kV
Adjustable inductance range 65~130H
Rated frequency 50Hz
Rated current 0.5A
Adjustable gap range 0~300mm

Price and Minimum Quantity

Price: $770 - $15397
MOQ: Not Specified
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Overview

This device is designed and manufactured for 35kV cable AC withstand voltage test. The reactor is individually designed for multiple units, which can not only meet the test conditions of high-voltage and low-current equipment, but also meet the low-voltage AC withstand voltage test requirements of 10kV cables.

The special AC resonance test system for cables adopts the method of adjusting the frequency of the power supply, so that the reactor and the capacitor under test can achieve resonance, and the high voltage and large current can be obtained on the test product. It is a new method of current high voltage test and The trend has been widely used at home and abroad.

The AC resonance test system uses a dedicated SPWM digital waveform generator chip with a frequency resolution of 16 bits, and the frequency fineness can reach 0.1 Hz at 20 to 300 Hz; it adopts an orthogonal non-synchronous fixed carrier modulation method to ensure that the entire frequency The output waveform is good in the interval; the advanced IPM module is used in the power part to ensure the stability and safety of the instrument under the minimum weight.

The test system consists of a frequency and voltage regulation power supply, an excitation transformer, a reactor, and a capacitor divider.

Technical index

1. the resonant excitation power supply only needs 1/Q of test capacity, which is 1/10-1/30 of common test unit and reduces the system weight and volume greatly.

2. Rated voltage:

1.108kV meeting the alternating current withstand voltage test for 35kV cable;

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4.Quality factor of unit itself: Q 50



Advantage

1.The power capacity needed is reduced greatly.

2.The weight and volume of equipment is reduced greatly.

3.The waveform of output voltage is improved.

4.The large short-circuit current is prevented from burning fault point.



Feature:

1. A large number of cables with voltage levels of 35kV and below are used, and the test workload is large, so this type of withstand voltage test device is small in size and light in weight, and a portable cable withstand voltage test system was born;

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3. The power supply adopts 220V single-phase power supply or 380V single-phase power supply, which is convenient for on-site power supply;

4. The reactor part is made of dry epoxy casting, which is beautiful and reliable, suitable for the requirements of various cables;

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Main Technical Features
Technical Detail Value
Product Name Apex Eco 11 kW Smart Inverter
Output Power 11,000 Watt (11 kW)
Working Voltage 48V DC
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