



ltem | Unit | Data | ||||
rated voltage | kv | 12 | ||||
Rated freguency | Hz | 50 | ||||
Rated current | A | 630 | ||||
Rated active load breaking current | A | 630 | ||||
Rated closed loop dropout current | A | 630 | ||||
Lightning impulse withstand voltage(peak) | kv | phase to earth, between phase 75, fracture 85 | ||||
1 min power frequency withstand voltage | kv | phase to earth, between phase 42, fracture 48 | ||||
Rated short-time withstand current(2s) | kA | 25 | ||||
Rated peak withstand current | 63 | |||||
Rated short-circuit closing current(peak) | 63 | |||||
Mechanical life | Load switch | times | 5000 | |||
Earth switch | 2000 |






Q1: Are you a factory or trading company
A1: Yes, we are a top-notch manufacturer dedicated to the research, development, and production of a wide range of high-quality transformers. Both our products and prices are very competitive.
Q2: How does your factory do regarding quality control?
A2: All the products will be 100% checked and tested before delivery. All our products comply to strict tests, easy maintenance is guaranteed. We also offer on-line after-sale service in case of any further problems.
Q3: When can I get the price?
A3: Usually we quote within 24 hours after we get your inquiry.
Q4: How could I get a sample?
A4: if you can not buy our product in your local area, we will ship a sample to you. You will be charged a sample price plus all related shipping costs. Express delivery charge depends on the quantity of the samples.
(Does not include large electrical equipment.)
Q5: What is the price of shipping?
A5: Depending upon the port of delivery, the price varies.