Coupling Networks (CN) M Types
For conducted immunity testing according to IEC/EN 61000-4-16 for unscreened, balanced lines
For conducted immunity testing according to IEC/EN 61000-4-16 for unscreened, balanced lines
Technical specifications: | |
Type | Description |
M2-16 | Frequency range: 15 Hz to 150 KHz Test level: 50 V cont.; 300 V (1sec) power frequency EUT / AE – Connector: 250 VAC / 32 A (50 VDC / 32 A) Connector EUT / AE: 4mm safety banana jack For AC tests only! |
M2/DC-16 | Frequency range: DC Test level: 50 V cont.; 300 V (1sec) power frequency EUT / AE – port: 50 V / 32 A Connector EUT / AE: 4mm safety banana jack For DC tests only! |
M2+M3-16 | Frequency range: DC/15 Hz to 150 KHz Disturbing voltage: 0 V to ± 300 V Operating voltage (AE – EUT): 250 V AC / 350 V DC Nominal current (AE – EUT): 32 A Connection (AE – EUT): 4 mm MC sockets Supply voltage: 24 V DC |
M3-16 | Frequency range: 15 Hz to 150 KHz Test level: 50 V cont.; 300 V (1sec) power frequency EUT / AE – Connector: 250 VAC / 32 A (50 VDC / 32 A) Connector EUT / AE: 4mm safety banana jack Use for EUT with functional earth! For AC tests only! |
M3/DC-16 | Frequency range: DC Test level: 50 V cont.; 300 V (1sec) power frequency EUT / AE – port: 50 V / 32 A Connector EUT / AE: 4mm safety banana jack Use for EUT with functional earth! For DC tests only! |
M4-16 | Frequency range: 15 Hz to 150 KHz Test level: 50 V cont.; 300 V (1sec) power frequency EUT / AE – Connector: 250 VAC / 32 A Connector EUT / AE: 4mm safety banana jack For AC tests only! |
M5-16 | Frequency range: 15 Hz to 150 KHz Test level: 50 V cont.; 300 V (1sec) power frequency EUT / AE – Connector: 250 VAC / 32 A Connector EUT / AE: 4mm safety banana jack Use for EUT with functional earth! For AC tests only! |
M2345/32-16 | 4mm safety banana jack, DC,15 kHz – 150 kHz, 32A Switchable between modes M2/ M3/ M4/ M5 |
M2345/125-16 | 6mm MC socket, DC,15 kHz – 150 kHz, 125A Switchable between modes M2/ M3/ M4/ M5 |
COUPLING NETWORKS FOR POWERLINE CONDUCTORS
For each wire the coupling network for powerline conductors is made of a serious connection of a resistor and a capacitor. Coupling networks of each wire are connected to establish the coupling network of the corresponding M-type. Value of the capacitor is C = 1,0 μF. Value of the resistor is R = 100 x n , where n is the number Ω of the wires (n ≥ 2). Values of capacitor and resistor shall match with a limiting deviation of 1 %. For direct current tests the 1,0 μF capacitors shall be short circuited. For safety reasons coupling networks M2 and M3 are separated units for DC tests and AC tests. Short circuiting the capacitor by mistake while an alternating current is applied inevitably destroys the coupling network. Each connection which is not under test must be grounded (SW2). For this reason an isolated BNC jumper plug is included.
COUPLING NETWORKS FOR COMMUNICATION LINES
For balanced communication lines and similar lines a “T” network is used. The “T” network is made of capacitors ( C = 4,7 ÎĽF), resistors ( R = 200 Ω) and inductances (L = 2 x 38 mH / bifilar winding). All components shall match with a limiting deviation to ensure that there is no significant reduction of the differential to common mode conversion loss of the EUT .For direct current tests the 1.0 ÎĽF capacitors shall be short circuited. Each connection which is not under test must be grounded (SW2). For this reason an isolated BNC jumper plug is included.