新製品
New Product
High-frequency CurrentbSensor
[Overview and Design Intentions]
In recent years, high-voltage cables and extra-high-voltage cables that are laid on factory grounds, etc.
are becoming increasingly aging and aging, and ground faults and short-circuit accidents that accompany dielectric
breakdown have also occurred.
In some cases, factory power outages and fires can also be induced.
Therefore, there is a growing need for services that diagnose and detect the degree of deterioration of the high-voltage
cables being laid.
To diagnose the degradation of high-voltage cables, a technique that uses partial discharging (PD:Partial Discharge),
which is a precursory phenomenon of dielectric breakdown, is available.
This technique uses a high-frequency current sensor, commonly referred to as a high-frequency CT(HFCT:High Frequency Current Transformer, to detect partial discharges, which are weak pulsed signals.
Diagnosis of deterioration of high voltage cables using partial discharge has already been put into practical use and is becoming popular.
Against this backdrop, Hoshiden developed a high-frequency current sensor that is ideal for detecting partial discharges.
The band is 1MHz～100MHz and allows you to distinguish between partial discharging and ambient noises.
In addition, while conventional high-frequency current sensors are intended for indoor use as measuring instruments, this developed product also supports IP55 and can be used outdoors.
In other words, you can detect any sign of a failure of the high-voltage cable at any location.
Product Name and Model Number
[Product Name]
High-frequency CurrentbSensor
[Product Number]
HVE1481
[Features]
・Covers the best 1MHz～100MHz band for detecting partial discharges
・Clamping type can be installed in existing equipment.
・IP protective rating conforms to IP55
[Applications]
・To detect partial discharges that occur as a result of deterioration of high-voltage cables
Main Specifications
Applicable current：～10A rmsSupported frequency：1MHz to 100MHz (3dB bandwidth)
Operating temperature：-10°C to +75°C
Output terminal：BNC
Waterproof：IP55 equivalent
.png)