AC voltage withstand test device

NegotiableUpdate on 05/20

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Nature of the Manufacturer: Producers

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Overview

The working principle of the communication withstand voltage test device is based on series resonant circuit technology. By adjusting the power frequency, resonance occurs between the reactor and the tested capacitor, thereby obtaining high voltage and high current on the tested product. Less power is required, the equipment is lightweight, small in size, and easy to carry and use on site.

Product Details

AC voltage withstand test deviceIt is a testing device used to evaluate the tolerance of electrical equipment and materials under high voltage conditions. It is mainly used to test the overall voltage resistance of insulation materials, winding coils, shells, and other parts to ensure that these components will not experience breakdown or leakage faults under normal operating conditions.

I. Overview

The AC withstand voltage test device evaluates its withstand voltage capability by applying a high-voltage AC power source to the tested object and monitoring its performance under high voltage conditions. This testing method is widely used in industries such as power, railway, metallurgy, petroleum, coal, and chemical to ensure the safety and reliability of electrical equipment.

2、 Components

The AC voltage withstand test device usually consists of the following main parts:

Variable frequency power supply: Provides adjustable AC power with a frequency range typically between 30Hz and 300Hz.

High voltage reactor: used to regulate current and voltage to achieve the required test conditions.

High voltage divider: used to measure high voltage and convert it into a readable low voltage signal.

Excitation transformer: used to provide initial excitation voltage.

Compensation capacitor: used to adjust the resonant frequency of a circuit.

model	capacity	high voltage	high-voltage current	Low voltage input		transformation ratio	temperature rise℃
model	(KVA)	(KV)	(mA)	Voltage (V)	Current (A)	High/ceremony	30minute
TQSB 1.5/50	1.5	50	30	200	7.5	500	10
TQSB 3/50	3	50	60	200	15	500	10
TQSB 5/50	5	50	100	200	25	500	10
TQSB 10/50	10	50	200	200	50	500	10
TQSB 20/50	20	50	400	380	53	500	10
TQSB 30/50	30	50	600	380	79	500	10
TQSB 50/50	50	50	1000	380	12	500	10
TQSB 5/100	5	100	50	200	25	1000	10
TQSB 10/100	10	100	100	200	50	1000	10
TQSB 20/100	20	100	200	400	50	1000	10
TQSB 30/100	30	100	300	400	75	1000	10
TQSB 50/100	50	100	500	400	125	1000	10
TQSB 20/150	20	150	133	400	50	1500	10
TQSB 30/150	30	150	200	400	75	1500	10
TQSB 50/150	50	150	333	400	125	1500	10
TQSB 100/150	100	150	667	400	250	1500	10
TQSB 50/200	50	200	250	400	125	2000	10
TQSB 100/200	100	200	500	400	250	2000	10
TQSB 150/200	150	200	750	400	375	2000	10
TQSB 200/200	200	200	1000	400	500	2000	10
TQSB 300/200	300	200	1500	400	600	2000	10
TQSB 50/300	50	300	170	400	125	3000	10
TQSB 100/300	100	300	333	400	250	3000	10
TQSB 150/300	150	300	500	400	375	3000	10
TQSB 200/300	200	300	667	400	500	3000	10

3、 Working principle

4、 Advantages

Comprehensiveness: Able to comprehensively evaluate the overall pressure resistance of the tested object.

Reliability: Able to simulate high voltage situations in actual working environments, effectively detecting potential insulation issues and safety hazards.

Standardization: Ensure the accuracy and repeatability of the testing process.

Easy to operate: Equipped with an intuitive operating interface and functional buttons, allowing testers to easily set up and control.

Security: Equipped with multiple protection functions, such as overvoltage protection, overcurrent protection, flashover protection, etc., to ensure the safety and reliability of the equipment during the testing process.

5、 Application Fields

The AC voltage withstand test device is widely used in the following fields:

Power industry: used for testing large capacity equipment such as power cables, power transformers, high-voltage circuit breakers, GIS composite appliances, etc.

Railway, metallurgy, petroleum, coal, chemical and other industries: used for testing various high-voltage electrical equipment and materials.

6、 Operation steps

Set test parameters: Based on the characteristics and requirements of the tested object, set the required voltage value, frequency, duration, and other parameters for the test.

Connect the test circuit: Connect the tested object to the AC voltage withstand test equipment to form a closed circuit, ensuring the correct wiring of the power supply and load.

Apply high voltage: Turn on the AC withstand voltage test equipment and apply the preset high voltage AC power supply to the tested object for a certain period of time.

Monitoring and recording: During the testing process, the built-in monitoring device detects real-time parameters such as current and voltage of the tested object, and records the test data.

Judgment result: Determine whether the tested object has passed the withstand voltage test based on the test results.

Ensure safety: Testers should follow relevant safety operating procedures, wear personal protective equipment correctly, and ensure their own and others' safety.

The AC voltage withstand test device is an important electrical safety testing equipment. By conducting AC voltage withstand tests on electrical equipment and materials, potential insulation problems and safety hazards can be effectively identified, ensuring the reliable operation of electrical equipment. Its comprehensiveness, reliability, standardization, ease of operation, and safety have made it widely used in various industries.