Introduced 3 types of stamping dies for manufacturing of manganin shunts: simple dies, combination or compound dies, progressive dies.
Stamping Dies for Manganin Shunts
Customized Primary Wire Shunt
High accuarcy, resistance tolerance ±1%, ±3%, ±5%;
Resistance value: 50~1500 μΩ;
Current rating: 10~200 A
Rated power: 0.3~3.6 W
Nanocrystalline Core for Switchgear
P/N: CS110-145-20A
ID=110mm, OD=145mm, H=20mm (nominal)
Le: 40.04cm, Ac: 2.63cm2, weight: 1000g
AL value ≥96μH@1kHz/0.3V
Suit for metal clad or metal enclosed LV/MV switchgear
Construction of Toroidal Current Transformer
By comparison with busbar type current transformer (CT), the structure of toroidal current transformer is simple. Usually, there is a through-hole of no less than 8mm diameter, which allows the primary wire or copper busbar come through. The through-hole may
Spot Welding for Manganin Shunt Resistor
Spot welding is an important manufacturing technique for our manganin shunt resistors. We use the manganin 6J13 or 6J12 as the calibration material, because of its low temperature coefficient and good thermal stability. However, the price is expensive, we rarely
Basic Materials for Shunt Resistors
Copper, Brass, Manganin are the most widely used materials for shunt resistors. As a professional shunt manufacturer, we devoted ourselves to these materials for more than 15 years, and here we introduce them as below. Basic Materials for Shunt Resistors
Current & Phase Error for Mini Current Transformer
Current error (amplitude error or ratio error) and phase angle error (phase shift) are two important parameters for a mini current transformer. From the manufacturer’s view, the current error is usually caused by wrong turns number in coil winding process.
Busbar type Current Transformer Structure
The mini current transformer which consists of a busbar and a coil is easy to assemble in an electricity meter or other devices. We can make such kind of component by integrated the ring shape current transformer with a U
Mean Magnetic Path and Iron Cross Section
For an amorphous core or a nanocrystalline core, mean magnetic path (Lm) and iron cross section (Ac) are two important parameters. Here we’ll introduce them and the calculation method for a finished soft magnetic core. Mean Magnetic Path and Iron
Laminated or Tape Wound Soft Magnetic Core
For silicon steel, it’s very easy to make the core by stacking thin stamp parts together. But for brittle amorphous or nanocrystalline, this in not suitable and tape winding is the basic manufacturing technical. Therefore, the height of a tape