CWT迷你高频电流传感器30MHz
概述
一种新型静电屏蔽Rogowski线圈，对快速本地dV/dt瞬态或大50/60Hz电压的干扰具有优异的抗扰性
扩展(-3dB)高频带宽30MHz，用于100mm线圈
峰值di/dt能力高达100kA/µs
工作温度范围-40°C至+125°C
4.5mm厚Rogowski线圈，5kV峰值绝缘
指标
CWT Mini HF Rogowski Coil Models and Specifications
| Model | Sensitivity (mV/A) |
Peak current*1 (kA) |
Noise max*2 (mV pk-pk) |
Droop %/mS |
LF (3dB) bandwidth typ. (Hz) FL |
Peak di/dt kA/µs |
HF (3dB) bandwidth*3 MHz |
|
|---|---|---|---|---|---|---|---|---|
| Coil Length 100mm | Coil Length 200mm | |||||||
| CWT Mini HF 015 | 200 | 0.03 | 15 | 85 | 150 | 2.0 | 30 | 23 |
| CWT Mini HF 03 | 100 | 0.06 | 11 | 78 | 100 | 4.0 | 30 | 23 |
| CWT Mini HF 06 | 50 | 0.12 | 8.0 | 70 | 75 | 8.0 | 30 | 23 |
| CWT Mini HF 1 | 20 | 0.3 | 6.0 | 53 | 50 | 20 | 30 | 23 |
| CWT MiniHF 3 | 10 | 0.6 | 10 | 11 | 12 | 40 | 30 | 23 |
| CWT Mini HF 6 | 5.0 | 1.2 | 10 | 5.5 | 6.0 | 80 | 30 | 23 |
| CWT Mini HF 15 | 2.0 | 3.0 | 8.0 | 2.8 | 3.0 | 80 | 30 | 23 |
| CWT Mini HF 30 | 1.0 | 6.0 | 8.0 | 2.8 | 3.0 | 100 | 30 | 23 |
| CWT Mini HF 60 | 0.5 | 12.0 | 6.0 | 1.0 | 1.0 | 100 | 30 | 23 |
| CWT Mini HF 150 | 0.2 | 30.0 | 4.0 | 1.0 | 1.0 | 100 | 30 | 23 |
* 1。更高的额定电流可供选择，CWT300峰值电流60kA, CWT600峰值电流120kA, CWT1500峰值电流300kA等
* 2。噪音马克斯。内部产生的噪音在低频(-3dB)频宽时的最大值是多少
* 3。高频高频(-3dB)为线圈和集成商之间的2.5毫米电缆报价
| TYPICAL ACCURACY (full scale) |
Calibrated to UKAS ±0.2% with conductor central in the loop Variation with conductor position in the coil loop typically ±2% |
||
| TYPICAL LINEARITY | ±0.05% (full scale) | ||
| ABSOLUTE MAXIMUM VALUES OF di / dt (kA/µs) (value must not be exceeded) |
PEAK | PEAK 100kA/uS | All models 1.2kA/uS |
| Coil and cable | |
| COIL CIRCUMFERENCE ‘A’ (mm) | 100 or 200mm optional lengths to 1000mm |
| COIL CROSS SECTION ‘B’ (mm) | 4.5mm for 5kV isolation |
| PEAK COIL VOLTAGE ISOLATION (kV) | 5kV |
| Safe peak working voltage to earth. 5kV coils are flash tested at 8kVrms/60Hz for 60 seconds. Information about the continuous use of coils at high voltage can be obtained from Powertek | |
| TEMPERATURE RANGE (°C) | -40°C to 125°C |
| For de-rating due to temperature cycling please consult Powertek | |
| CABLE LENGTH (metres) (from box to coil) | 1m, 2.5m or 4m. Max cable length for CWT015 is 1m, CWT03 is 1.5m, CWT06 is 2.5m |
| Power input - mechanical - environmental | |
| POWER SUPPLY |
All CWT units are supplied with four AA Lithium batteries (typical life 90 hours) and a 12V-24Vdc input socket and a power adapters (AC to 12Vdc), to power the CWT from 230Vac or 115Vac. Specify adapter type, 230V or 115 V Rechargeable batteries, option R, are available. (batteries are charged whenever external +12V dc supply is present). Typical recharge time 40 hrs, typical life 8 hrs. |
| INTEGRATOR BOX DIMENSIONS (mm) |
H =183mm, W = 93mm, D = 32mm |
| OUTPUT SOCKET | BNC (output impedance 50 ohms- unit supplied with 0.5m BNC-BNC coaxial cable) |
| MIN. OUTPUT LOADING | 100k (for rated accuracy). |
| TEMPERATURE RANGE (°C) | 0°C to 40°C |
| Model | Power Option | Cable Length (m) |
Cable Length (mm) |
Insulation(kV) |
| See table above | B-Battery R-Rechargeable |
1, 2.5 or 4 (custom length available) |
100 or 200 (custom length available) |
5 |
| CWT Mini HF 06 | R | 2.5 | 100 | 5 |
