3-Phase CDN for Burst, Surge | CWG 520
IEC / EN 61000-4-4
IEC / EN 61000-4-5
The 3-phase coupling network (CDN) can be used for EMC tests according to the IEC/EN 61000-4-4 (Burst) and IEC/EN 61000-4-5 (Surge) standards. The interference pulses of the burst generator or the surge generator are coupled to the power supply lines of the test object.
The coupling paths can be selected with a switch. The CDN can be remotely controlled from a PC via an RS232 interface in computer operation with the burst generator SFT 2400 / 1400 / 1420 or the surge generator CWG 2500 / 1500.
- CWG 520:
Nominal voltage AC
Conductor to earth: 230 V / 50 - 60 Hz
Conductor to conductor: 400 V / 50 - 60 Hz
Nominal voltage DC: 270 V + 0% (L -> N, PE) - CWG 520-550:
Nominal voltage AC
Conductor to earth: 320 V +0% / 50 - 60 Hz
Conductor to conductor: 550 V +0% / 50 - 60 Hz
Nominal voltage DC: 380 V + 0% (L -> N, PE)
- 3-phase coupling/decoupling network
- Burst pulse: max. 5 kV
- Surge pulse: max. 4.4 kV
- Rated current: 4 x 16 A
- Series inductance (BURST) 5 x 120 µH / 16 A
- Single choke (SURGE) 4 x 1.5 mH / 16 A
- Coupling impedances Burst coupling: 33 nF
- Coupling impedances Surge coupling:
CWG 520:
L – PE, N – PE: 9 µF + 12 Ohm,
L – L, L – N: 18 µF + 2 Ohm
CWG 520-550:
L – PE, N – PE: 9 µF + 10 Ohm,
L – L, L – N: 18 µF - Coupling modes Burst: L1, L2, L3, N, PE
individually and in any combination against earth - Coupling modes Surge: L – L, L – N, L – PE, N – PE
- Logic signal input: BNC - jack
- High-voltage input: Burst Fischer high-voltage socket D103A023
- High-voltage input: Surge Fischer high-voltage socket D105A039
- Connection for EUT supply and EUT: Laboratory sockets
- Dimensions: 19" housing, 3 HE
- Weight: approx. 20 kg
The CWG 520 is suitable for operation with the SFT 2400 / 1400 / 1420 burst generators or the CWG 2500 / 1500 surge generators from Schlöder, as well as with the CWG 520_F accessory with devices from other manufacturers.
The optional EMC software "EMC-SOFT" enables the Schlöder interference generators and CDN CWG 520 to be operated from a PC via the USB port. The required serial interface cables are supplied for the respective devices. With EMC-SOFT, all parameters that can also be set directly on the generator can be operated remotely.