Description
Les onduleurs utilisés dans les applications ferroviaires et les systèmes d'alimentation convertissent l'énergie haute tension. Pour mesurer l'efficacité de telles conversions, il est nécessaire de mesurer des tensions de 1000 V et plus. Le VT1005 divise des tensions allant jusqu'à 5000 V et les transmet à un analyseur de puissance. Afin de mesurer l'efficacité des onduleurs à haut rendement avec un haut degré de précision, vous devez être en mesure de mesurer avec exactitude la puissance du DC aux hautes fréquences. Grâce à son excellente planéité de fréquence, le VT1005 permet une mesure précise à des fréquences allant de l'onde fondamentale aux composantes de fréquence de commutation.
Caractéristiques techniques :
- Max. Input 5000 V
2000 V CAT II
1500 V CAT III
- Measurement Accuracy:
±0.08% (DC)
±0.04% (50/60 Hz)
±0.17% (50 kHz)
- Frequency Flatness:
±0.1% Amplitude Band 200 kHz Typ.
±0.1° Phase Band 500 kHz Typ.
- Measurement Band:
DC to 4 MHz (-3 dB)
- Noise Resistance:
CMRR 80 dB Typ. (100 kHz)
Differential Input Method
Specifications :
| Maximum rated voltage |
5000 V rms, ±7100 V peak (*1) |
| Maximum rated voltage (line-to-ground) |
No measurement category: 5000 V AC/DC (*2) |
| Measurement category II: 2000 V AC/DC (*3) |
| Measurement category III: 1500 V AC/DC (*4) |
| Voltage dividing ratio |
1000：1 |
| Measurement accuracy |
±0.08％(DC), ±0.04％(50/60 Hz), ±0.17% (50 kHz) |
| Frequency flatness |
Band where amplitude falls within ±0.1% range: 200 kHz (typical) |
| Band where phase falls within ±0.1° range: 500 kHz (typical) (*5) |
| Measurement bandwidth |
DC to 4 MHz (Amplitude and phase accuracy specified up to 1 MHz) |
| Common-mode voltage rejection ratio (CMRR) |
50 Hz/60 Hz: 90 dB（Typical） |
| 100 kHz: 80 dB (Typical） |
| Measurement method |
Differential input |
| Operating temperature and humidity range |
-10°C to 50°C (14°F to 122°F), 80% RH or less (non-condensing) |
| Storage temperature and humidity range |
−20°C to 60°C (-4°F to 140°F), 80% RH or less (non-condensing) |
| Standards |
Safety: EN 61010 |
| EMC: EN 61326 Class A |
| Power supply |
100 V to 240 V AC (50/60 Hz) |
| Dimensions and Weight |
Approx. 195.0 mm (7.68 in) W × 83.2 mm (3.28 in) H × 346.0 mm (13.62 in) D mm |
| Approx. 2.2 kg (77.6 oz.) |
| Accessories |
- L1050-01 Voltage Cord ×1 (1.6 m/ 5.25 ft) |
| - L9217 Connection Cord ×1 (insulated BNC, 1.6 m/ 5.25 ft) |
| - 9704 Conversion Adapter ×1 (insulated-female BNC-to-banana plug) |
| - Power cord ×1 |
*1: Within the frequency derating range
No measurement category: Applicable to the measurement of circuits that are not directly connected to the main power supply.
EXAMPLE: Measurement on the secondary-side equipment from the socket outlet of fixed installation through a transformer, etc.
*2: ±7100 V peak, Anticipated transient overvoltage 0 V
*3: Anticipated transient overvoltage 12000 V
*4: Anticipated transient overvoltage 10000 V
*5: After phase correction by the power analyzer
