Precision Voltage Regulation High-Repeatability Electrical Insulation Performance Verification Power Frequency AC Dielectric Withstand Test Set

• Customization: Available
• After-sales Service: Video Guidance
• Warranty: Video Guidance
• Model NO.: Power Frequency AC Dielectric Withstand Test Set
• Type: Electrical Testing Instrument
• Accuracy Grade: 1
• Control: Computer Control
• Input Voltage: AC 220V/400V, 50Hz
• Operating Temperature: -40℃-40℃
• Relative Humidity: ≤85% (at 25℃)
• Specifications (Example): 1.5/50: 1.5kVA, 50kv AC Output, 30mA AC Current
• Transport Package: Plywood Wooden Box
• Specification: 450×320×580mm
• Trademark: zhonglutongda
• Origin: China Hebei
• Production Capacity: 50000pieces/Year
• Package Size: 45.00cm * 32.00cm * 58.00cm
• Package Gross Weight: 35.000kg

Product Description

Product Description

High-voltage test transformer

Our company's high-voltage test transformer is a new type of high-voltage testing equipment. This series of products adopts a single-frame core structure, with the primary and high-voltage windings coaxially wound on the core, thereby reducing leakage flux and increasing the coupling between the windings. The product has a compact overall structure, strong versatility, and is easy to use and carry. It is suitable for power systems and power users to test the insulation performance of various high-voltage electrical equipment on-site, and is an essential testing instrument for power equipment testing and preventive testing.
In addition to AC power frequency withstand voltage testing, the high-voltage test transformer can also be assembled into a DC high-voltage test device by adding capacitors, silicon rectifiers, and a high-voltage DC microammeter of the same voltage level and capacity, allowing for the measurement of high-voltage DC leakage current.

Technical requirements

1. Environmental requirements for the test transformer:

1.1 Input voltage: AC 220V 50Hz;
1.2 Ambient temperature: -40℃-40℃;
1.3 Relative humidity: ≤85% (at an ambient temperature of 25℃);
1.4 In an environment free of corrosive gases and vapors;
1.5 In an environment free of explosive gases;
1.6 In a location protected from rainwater ingress.

Specification

Specification	capacity (kVA)	Low voltage input		AC high voltage output		DC high voltage output (kV)	Measurement of transformation ratio
		Voltage (V)	electric current (A)	Voltage (kV)	electric current (mA)
1.5/50	1.5	200	7.5	50	30	70	500
3/50	3	200	15	50	60	70	500
5/50	5	200	25	50	100	70	500
5/10	5	200	25	10	500	14	100
6/50	6	200	30	50	120	70	500
10/50	10	200	50	50	200	70	500
20/50	20	400	50	50	400	70	500
30/50	30	400	75	50	600	70	500
50/50	50	400	125	50	1000	70	500
5/100	5	200	25	100	50	140	1000
10/100	10	200	50	100	100	140	1000
15/50	15	200	75	50	75	70	500
15/100	15	200	75	100	150	140	1000
20/100	20	400	50	100	200	140	1000
20/200	20	400	50	200	100	280	2000
25/100	25	400	62.5	100	250	140	1000
30/100	30	400	75	100	300	140	1000
30/120	30	400	75	120	250	168	1200
50/100	50	400	125	100	500	140	1000
50/250	50	400	125	250	200	350	1000
100/100	100	400	250	100	1000	140	1000
20/150	20	400	50	150	133	210	1000
25/150	25	400	62	150	166	210	1000
30/150	30	400	75	150	200	210	1000
50/150	50	400	125	150	333	210	1000
150/150	150	400	375	150	1000	210	1000

1. Our factory's single test transformer can achieve an AC voltage of 300kV and a capacity of 300kVA;
2. If required by the user, our test transformers can be cascaded using the 200V tap to achieve high voltages of 100kV, 150kV, 200kV, and 300kV by connecting two or three units in series. Medium voltage taps of 5-15kV can also be provided in the high-voltage winding for AC withstand voltage testing of high-voltage motors;
3. The "DC High Voltage Output" column in the table shows the DC high voltage output value of the AC/DC dual-purpose test transformer;
4. Our factory can also customize various special specifications of test transformers according to user requirements.

Operating Procedures

1. Connect the wires according to the wiring diagram, and ensure that the transformer and control box are reliably grounded;

2. Before the test, check that all connections are secure and that the voltage regulator on the control box is set to the "zero" position;

3. Turn on the power supply. The green indicator light will illuminate. Press the start button, and the red indicator light will illuminate, indicating that the transformer is powered on and ready for voltage increase;

4. Rotate the voltage regulator handle clockwise at a constant speed to increase the voltage, and closely monitor the instrument readings and the condition of the test sample;

5. After the test is completed, quickly reduce the voltage to zero, press the stop button, then disconnect the power supply and remove the test leads.

Company Profile

Xianxian Zhonglu Tongda Testing Instrument and Equipment Factory is a high-tech enterprise located in the East Industrial Zone of Xianxian County. It mainly engages in the research and development, application research, and product sales of testing and measurement instruments and related products. The company relies on its own manufacturing factory for testing and measurement instruments and has several outstanding senior engineers who have been involved in the development of test instrument products in China for over twenty years and have achieved significant scientific research results. It is a company that mainly specializes in introducing advanced testing and inspection instruments and equipment from all over the world, and also provides professional pre-sale and after-sale services to users. In order to better serve customers, the company has set up maintenance service and spare parts supply centers in various regions across the country, and gradually established service and sales institutions in each province to provide users with greater convenience. Over the years, the company has adopted an advanced business philosophy based on management as the foundation, technology as the guide, innovation as the driving force, and service as the fundamental for survival, which has enabled the domestic market to expand continuously and the customer base to cover various industries. This mainly includes fields such as construction, highways, railways, water conservancy, power, environmental protection, etc.

FAQ

1.Question: What equipment do you supply?
Answer: We offer metal testing, pile foundation testing, concrete testing, soil testing, cement testing, asphalt testing, rock testing, and other laboratory equipment.
2.Question: Is your company a trading company or a factory?
Answer: Factory + Trade (Integrated), over 10 years specializing in the field of testing instruments.
3.Question: When will the goods be delivered after placing an order?
Answer: Peak season: 5-7 days, Off-season: 3-5 days
4.Question: How long is the warranty period for after-sales service?
Answer: This testing machine is provided with a 12-month warranty service by Zhonglu Tongda. We can help you repair the controller's problems for free, even if the problem is not from our factory. After the warranty period, our professional after-sales service team will provide comprehensive technical support to help customers solve problems encountered when using our products and handle customers' issues and complaints in a professional and timely manner.
5.Question: How is the service and quality of the product?
Answer: During the shipment and delivery of the goods, each product must undergo 100% quality inspection and testing. Regarding product usage training, we provide video training for each product to show how to install and operate. If needed, we can arrange engineers to conduct equipment operation training at the customer's company. These products have been widely recognized and trusted by users.
6.Question: What are the core advantages of the company?
Answer: a. Excellent quality, competitive price
b. Rich styles, rapid delivery
c. Professional R&D and design team
7.Question: What kind of supply services do you offer?
Answer: We can provide OEM (original equipment manufacturing)