Coupling network with integrated current transformer CN 19 U-I
IEC / EN 61000-4-19
The described CN 19 U-I together with our function power generator and the associated software, enables a seamless test solution that is completely compliant with the standard for voltage signals.
The CN 19 U section meets all requirements of the coupling network described in IEC/EN 61000-4-19. Since the output of the function power generator is very low impedance, the 10 Ω source resistance was implemented in the CN. Galvanic isolation between amplifier and EUT circuit by a 1:1 transformer additionally increases safety.
The CN 19 I section meets all requirements of the coupling network described in chapter 6.1.3 of IEC/EN 61000-4-19. This CN also provides galvanic isolation between amplifier and EUT circuit, but this time with a transmission ratio of 2:1 to better match the load impedance for the function power generator. For current measurement, a low-inductance four-wire shunt is built in, which closes the control loop with a corresponding SCPI-capable multimeter. Make sure that the multimeter is located in the test circuit and that high common-mode line voltages may therefore be present.
CN 19 U
- Frequency range: 2 kHz – 150 kHz
- Level: 0...25 Vrms cont
- Source impedance: 10 Ω ±3 Ω max. (±1 Ω typical)
- EUT voltage: 500 V AC (50/60 Hz), 700 V DC
- Max. EUT current: 16 A cont. AC/DC
- Voltage drop mains EUT: 13 V typical (16 A/50 Hz)
- Amplifier input: XLR-female (1: chassis/ground, 2: signal +, 3: signal -)
- Mains: 4 mm safety sockets (black/blue)
- EUT: 4 mm safety sockets (black/blue)
- High voltage test amplifier - EUT: 1.9 kV DC (10 sec)
CN 19 I: integrated current transformer
- Frequency range: 2 kHz – 150 kHz
- Level: 0...10 Arms cont.
- Source impedance: 1 Ω ±0.3 Ω max. (±0.1 Ω typisch)
- Four-wire shunt: 0.1 Ω ±1 mΩ max.
- EUT voltage: 500 V AC (50/60 Hz), 700 V DC
- Amplifier input: XLR-femalem (1: chassis/ground, 2: signal +, 3: signal -)
- EUT current output: 4 mm safety sockets (black/blue)
- Shunt output: 4 mm 4 mm safety sockets (green)
- Power supply: external 24 V/1 A AC/DC-power supply unit
- High voltage test amplifier - current output: 1.9 kV DC (10 sec)
- Dimensions (H x W x D): 15.7 x 48.2 x 54 cm
- Weight: 11.2 kg
- Temperature range: 5...40 °C
A connection cable is included in the scope of delivery.