Page 34 - Current & voltage sensors catalog

NCS305 industry current sensors
Technical data

Utilisation
Sensors to measure DC, AC or pulsating currents
with a galvanic insulation between primary and
2 secondary circuits.

ABB 8 pin connector NCS305-6 – – NCS305-10
Output current shielded cable – NCS305-6AF – –
Output voltage shielded cable – – NCS305-6VF –
Nominal primary current A 6000 6000 6000 10000
Measuring range A 20000 20000 20000 30000
Not measured overload 1 s/h A peak 80000 80000 80000 120000
mA ±20 ±20 – ±20
Secondary current I S1 at I PN
mA ±20 ±20 – ±20
Secondary current I S2 at I PMAX
Residual current I S10 @ +25 °C μA ≤ ±250 ≤ ±250 – ≤ ±250
Residual current I S20 @ +25 °C μA ≤ ±180 ≤ ±180 – ≤ ±180
Thermal drift coefficient (outputs I S1, I S2) μA/°C ≤ ±4 ≤ ±4 – ≤ ±4
Measuring resistance (outputs I S1, I S2) Ω 0 … 350 0 … 350 – 0 … 350
V ±10 – ±10 ±10
Secondary voltage V S1 at I PN
V ±10 – ±10 ±10
Secondary voltage V S2 at I PMAX
Residual voltage V S10 @ +25 °C mV ≤ ±100 – ≤ ±100 ≤ ±100
Residual voltage V S20 @ +25 °C mV ≤ ±50 – ≤ ±50 ≤ ±50
Thermal drift coefficient (outputs V S1, V S2) mV/°C ≤ ±2 – ≤ ±2 ≤ ±2
Measuring resistance (outputs V S1, V S2) Ω 10000 … ∞ – 10000 … ∞ 10000 … ∞
@ +25 °C % ≤ ±1 ≤ ±1 ≤ ±1 ≤ ±1
Rms accuracy 50 Hz (without offset) (1) at I PN
Rms accuracy 50 Hz (without offset) (1) at I PMAX @ +25 °C % ≤ ±3 ≤ ±3 ≤ ±3 ≤ ±3
Gain thermal drift -20 ... +85 °C %/°C ≤ ±0.01 ≤ ±0.01 ≤ ±0.01 ≤ ±0.01
Gain thermal drift -40 ... -20 °C %/°C ≤ ±0.04 ≤ ±0.04 ≤ ±0.04 ≤ ±0.04
Linearity (typical) % ±0.5 ±0.5 ±0.5 ±0.5
Delay time (typical) μs ≤ 10 ≤ 10 ≤ 10 ≤ 10
di/dt correctly followed A / μs ≤ 100 ≤ 100 ≤ 100 ≤ 100
Bandwidth @ -1 dB kHz 0 … 10 0 … 10 0 … 10 0 … 10
No load consumption current (I A0+) @ -40 °C mA ≤ 300 ≤ 300 ≤ 300 ≤ 300
Dielectric strength Primary/Secondary 50 Hz, 1 min kV r.m.s. 5 5 5 5
Supply voltage ± 2% V DC +15 … +24 +15 … +24 +15 … +24 +15 … +24
Mass kg 5.5 5.8 5.8 5.5
Operating temperature °C -40 … +85 -40 … +85 -40 … +85 -40 … +85
Storage/startup temperature °C -50 … +90 -50 … +90 -50 … +90 -50 … +90
(1) Maximum current I PN generated: 5000 A r.m.s.

General data Primary connection
– Plastic case and insulating resin are self-extinguishing. Hole for primary conductor.
– Clip on mounting mode The temperature of the primary conductor in contact with the case
– Two fixing modes: must not exceed 100 °C.
- Horizontal with fixing holes in the case moulding.
- By bar using the intermediate side plate kit (Refer to accessories
and options on the following page). Secondary connection
– Max tightening torque for M6.3 screws (side plate mounting): 4.5 N.m – Male straight 8 pin connector (integrated in the sensor)
– Direction of the current: A female straight 8 pin connector is provided as standard with each
- Output current (I S1 and I S2): A primary current flowing in the product.
direction of the arrow results in a positive secondary output cur- – Shielded cable 6 x 2000 mm (cross section 0.5 mm²).
rent on terminals I S1 and I S2.
- Output voltage (V S1 and V S2): A primary current flowing in the
direction of the arrow results in a positive secondary output volt-
age on terminals V S1 and V S2.
– Burn-in test in accordance with FPTC 404304 cycle.

32 | ABB