Product description
On load tap changer transformer plays an important role in power system.It can not only stabilize the load center voltage, but also connect the power grid, adjust load current, improve reactive power distribution etc.Its basic principle is to lead out several taps from the coil on one side of the transformer, and switch from one tap to another through OLTC, without cutting off the load current.So as to change the effective number of turns and achieve the purpose of voltage regulation.
On load voltage regulation technology of transformer is widely used in distribution system, and also in step-up transformer of power plant. At present, almost all the large capacity transformers in the power system adopt on load voltage regulators,It is also equipped with a perfect low-voltage distribution network structure and sufficient reactive power compensation capacity to ensure the safe operation of the power grid and meet the requirements of customers for power quality.
Product features
1.No load voltage regulating transformer need to adjust the tap of high-voltage side only when the power is cut off,
so as to change the ratio of the transformer to regulate the voltage at the low-voltage side.Its regulation range is small, generally within ± 5%, It can only be adjusted once or twice a year.Most transformers in power system are no-load tap transformers.
2.The on load tap changing transformer has a special switch, which can change the tap position without power off (with load).Its voltage regulation range is large, generally more than 15% or even up to 30%, and it can be adjusted automatically for several times a day.
3.No excitation voltage regulation refers to no-load voltage regulation,which can be adjusted only when the transformer is off.On load tap chaning transformer can change the voltage by changing the tap position when it is on running.
4.OLTC switch has the advantages of frequent on-off, no spark and long service life.The traditional trigger circuit of power electronic switch has the
problem of electrical isolation.The application of optical fiber communication technology to the medium and high voltage trigger control system
can effectively solve the problem of high and low voltage electrical isolation.
sz11 three phase oil immersed transformer series parameters
Certificates and Products Testing Reports
FAQ
Q: Are you a Manufacturer, factory or Trading company?
A: Yes, we are professional manufacrurer of transformer established on 1996. Welcome to visit our factory in the near future!
Q: What's your warranty terms?
A: We offer 12 months warranty time for the transformer quality. For any questions about our products, you can consult our sales manager any time and anywhere. We will provide the professional assistance to you.
Q: How long is the production time?
A: My friends, when you confirm the order, there will be about 25 to 45 days to produce which depends on your delivery plan and our order arrangements.
Q: What's your payment terms?
A: T/T, L/C or negotiation.
Q: How do you conduct quality control in your factory?
A: Hero transformers are manufactured in accordance with international standards (such as IEC, SGS, Intertek, CCC, CE and other international certifications) and customer requirements . All transformers are 100% conducted routine test, type test and special test before delivery to ensure every product is qualified.
Q: Do you have the products in stock?
A: Normally No, but we have raw material stock to shorten production lead time.
Q: How can I trust you?
A: Liaocheng Huarui Electric Co., Ltd has more than 28 years manufacturing and R&D experience, and cooperated with many customers all over the world. We have many patent certificates, test report, ISO9001, ISO14000 certificate. We are the audited supplier of Made-In-China.
Q: Can you provide customized transformer?
A: Yes, Of cource. Please tell our salers your detailed requirements with specifications, technical drawing and other parameters.
Q: Could I have your catalog and price list?
A: Price may change based on material market. Welcome to contact for accurate price via Made-in-China or company official website.
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