Hebei Yueyang Electric Power Technology Co., Ltd. belongs to Beijing Beikai Zhongdian Group (established in 2005). It is a manufacturer of high and low voltage electrical equipment that integrates R&D, production, and sales. The company's main products include isolation switches, switchgear, vacuum circuit breakers, transformers, Drop Out Fuse, lightning arresters, and other series of products, which are widely used in ports, rail transportation, new energy, power systems, and infrastructure construction. These products are exported to over 60 countries and regions worldwide
Why Choose Us
Sales Market
The company has over 20 years of experience in the high and low voltage electrical industry, and its products have been sold to multiple countries and regions such as Europe, Africa, Southeast Asia, and the Middle East.
Production Equipment
Our company is equipped with 20 lathes, 10 universal cleaning machines, 8 drilling and washing machines, 5 punching machines, 9 experimental benches, 5 detectors, etc., to provide a guarantee for the high-precision production of products.
Our Certification
The company has passed the ISO9001 series system certification.
Focus on Product Innovation
In order to comply with the development trend of the international market, the company continuously adheres to product innovation and technological innovation.
Specification
|
Model |
Standard |
Phase |
Frequency |
Primary Voltage |
Secondary Voltage |
Burden / Accuracy |
AC/BIL |
Primary-Side Fuses |
Approx. Weight |
|
EPF-3SF1 |
IEC |
1 |
50 or 60 |
3600 |
120 |
100VA / 1.0CL |
10/40 |
2 |
8.5 |
|
EPF-6SF2 |
IEC |
1 |
50 or 60 |
7200 |
120 |
200VA / 1.0CL |
20/60 |
2 |
16 |
|
3600 |
10/40 |
||||||||
• They provide accurate and reliable measurements of high voltages.
• A potential transformer is essential for power systems' safe and efficient operation.
• They isolate high-voltage power systems from lower-voltage control and measurement systems, ensuring the safety of personnel and equipment.
• Typically less expensive than other high voltage measurements
• Used in devices such as voltage dividers or capacitive voltage transformers
• These are highly reliable and require minimal maintenance, which reduces downtime and increases operational efficiency.
• They have low power consumption, which helps to reduce energy costs and environmental impact.
• These are very easy to install and can be mounted on poles or structures, which reduces installation time and cost.
Types of Voltage Transformer
Metering potential transformer
The metering type PTs are instrument transformers used for the measurement of voltage. They are low rating transformers with high accuracy.
Protection potential transformer
Such type of PT is used for providing protection because their windings are electrically isolated & the low voltage side is not directly connected to the high voltage side.
Electromagnetic potential transformer
The potential transformer that uses electromagnetic induction to transform high voltage into low voltage is called electromagnetic PT. These are conventional wound-type transformers having primary & secondary winding wounded around a magnetic core. Therefore, they are also called wound type potential transformers having shell-type & core type. Such PTs do not use any other electronic component to reduce the voltage such as a capacitor.
Capacitive potential transformer
It is the combination of capacitive potential divider & electromagnetic transformer (auxiliary transformer). The capacitive potential divider is used to divide the high line voltage to reduce it below 10kV. The capacitors are connected in series at the primary side of the auxiliary transformer. The auxiliary transformer further reduces the voltage with high accuracy to be measured by the voltmeter. These transformers are used for power lines.
Applications Areas of Voltage Transformer
• They are used with ammeters and wattmeters to measure high-voltage transmission lines' voltage, current, and power.
• To signal protective relays when a fault occurs on a high-voltage line.
• PTs provide voltage signals for control circuits, such as automatic voltage regulators, reactive power compensators, and other control systems.
• These are used in testing high-voltage equipment, such as transformers and circuit breakers.
• Potential Transformers are used to measure the voltage and current during testing.
• These isolate communication systems from high-voltage power systems, which can interfere with communication signals.
• These are used in research to measure high voltages and currents in laboratory experiments and to calibrate other electrical equipment.
Our Certificate
Our Services
Pre sale service
a. Make technical solution
b. Send quotation, technical data sheet and drawing
c. Prepare power transmission plan, testing plan and shipment plan
In sale service
a. Supervise the manufacturing schedule totally in accordance with the plan
b. Send photos to customer during every manufacturing process(hold point)
c. Inform the customer one week before testing.
d. Quick response within 12 hours any time.
FAQ
As one of the leading voltage transformer manufacturers and suppliers in China, we warmly welcome you to buy cheap voltage transformer for sale here from our factory. All customized products are with high quality and low price.
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