Power frequency withstand voltage test transformer

NegotiableUpdate on 05/20

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Overview

The basic structure of the power frequency withstand voltage test transformer includes primary winding, secondary winding, and iron core. When AC power is input, the primary winding generates a magnetic field, causing high voltage to be induced in the secondary winding. Adjusting the turns ratio of the transformer can achieve the conversion from low voltage to high voltage. By increasing the voltage, the voltage applied to the device under test also increases, thus conducting a withstand voltage test.

Product Details

In the field of power engineering and equipment testing,Voltage withstand test transformerIt is a crucial device. It is mainly used to test the insulation performance of electrical equipment to ensure its safety and reliability in actual operation.

What is a voltage withstand test transformer?

Voltage withstand test transformer is a device used to apply high-frequency voltage for voltage withstand testing. Testing is usually conducted at a power frequency of 50Hz or 60Hz. Through this equipment, insulation strength tests can be conducted on transformers, lines, switches, and other electrical equipment to determine whether they can resist the effects of overvoltage and external environmental factors.

working principle

Power frequency withstand voltage test transformerThe basic structure includes primary winding, secondary winding, and iron core. When AC power is input, the primary winding generates a magnetic field, causing high voltage to be induced in the secondary winding. Adjusting the turns ratio of the transformer can achieve the conversion from low voltage to high voltage. By increasing the voltage, the voltage applied to the device under test also increases, thus conducting a withstand voltage test.

technical indicators

Rated voltage: indicates the maximum voltage that a transformer can output, generally ranging from several thousand volts (kV) to several tens of kilovolts.

Power: Describes the output power of a transformer, generally expressed in VA (volt ampere). The power level determines the number and types of devices that can be tested simultaneously.

Frequency: The standard power frequency is 50Hz or 60Hz, and the equipment needs to operate normally at this frequency.

Insulation level: Determine the insulation performance of the transformer to ensure its safe operation under high voltage.

Load capacity: Indicates how much load a transformer can support under given voltage conditions for testing.

Cooling method: Transformers can use natural cooling or forced oil circulation cooling modes, with different modes adapting to different power and environmental conditions.

application field

Power frequency withstand voltage test transformerWidely used in multiple industries, including:

1. Power industry

In substations, power plants, and distribution companies, withstand voltage testing is an important step in ensuring the normal operation of equipment such as busbars, transformers, and switchgear. These tests ensure that the insulation system of the equipment can effectively resist unexpected overvoltages.

2. Manufacturing industry

In the manufacturing process of electrical components and equipment, such as motors, generators, transformers, etc., withstand voltage testing helps confirm that the produced equipment meets relevant quality standards and ensures long-term stable operation.

3. Aerospace

In the development and testing of aviation electronic equipment, strict withstand voltage testing must be conducted to ensure the insulation performance of different components.

4. Research and Laboratory

When researching and developing new materials and electrical products, it is often necessary to conduct withstand voltage tests to evaluate the insulation performance and service life of the materials.

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

Purchase precautions

When selecting a power frequency withstand voltage test transformer, the following factors should be considered:

1. Testing requirements

Select transformers with corresponding rated voltage, power, and function based on specific testing requirements. For example, for testing high-voltage equipment, it is necessary to select a transformer with high voltage output.

2. Quality of Transformer

Choose a manufacturer with a good reputation, whose products must meet national and international standards to ensure safety, reliability, and durability.

3. Convenience of use

Adjustable transformers and equipment with voltmeters, timers, and protective devices can significantly improve operational efficiency and reduce difficulty in use.