TH0490 Bisector Current Ratio Standard

TH0490 is a series of bisectional current ratio standards. It can divide the input broadband current into two equal parts before output. The ratio difference and phase displacement of the second current are very small.

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Model:
TH0490
Brand:
TUNKIA

TH0490 Bisector Current Ratio Standard

1. Summary

TH0490 is a series of bisector current ratio standard, which can divide the input wideband current into two equal parts before outputting. The ratio error and phase displacement of the two currents are very small.

2. Feature

Nominal Input Current: 2 A / 20 A
Frequency Range: 45 Hz ~ 5 kHz (TH0490-5kHz); 5 kHz ~ 100 kHz（TH0490-100kHz）
Typical Value of Amplitude Error: better than 10 ppm
Typical Value of Phase Angle Error: better than20 μrad

3. Application

Calibrating the AC/DC difference and phase displacement of a precision coaxial shunt.
Calibrate ratio error and phase displacement of medium frequency current sensor/transformer.

4. Specification(TH0490-5kHz)

4.1 Amplitude

Type	Nominal Current Input (A)	Loop Load (Ω)	Ratio Measurement Uncertainty(k=2, ppm)
Type	Nominal Current Input (A)	Loop Load (Ω)	53 Hz	100 Hz	400 Hz	1 kHz	2 kHz	5 kHz
TH0490-5kHz-2A	100m	20	3	4	6	7	10	10
	100m	10	3	6	7	9	12	12
	200m	10	3	4	6	7	10	10
	200m	5	3	6	7	10	12	12
	500m	5	2	3	4	5	8	8
	500m	2	2	4	5	8	10	10
	1	2	2	3	4	4	7	7
	1	1	2	4	5	5	8	8
	2	1	2	3	4	4	7	7
	2	500m	3	4	6	6	12	12
TH0490-5kHz-20A	1	2	4	5	7	8	12	12
	1	1	4	7	8	10	15	15
	2	1	4	5	7	8	12	12
	2	500m	4	7	8	12	15	15
	5	400m	3	4	5	6	10	10
	5	200m	3	5	6	10	12	12
	10	200m	3	4	5	5	9	9
	10	100m	3	5	6	7	10	10
	20	100m	3	4	5	6	9	9
	20	50m	4	5	7	8	15	15

4.2 Phase Displacement

Type	Nominal Current Input (A)	Loop Load (Ω)	Measurement Uncertainty (k=2, μrad)
Type	Nominal Current Input (A)	Loop Load (Ω)	53 Hz	100 Hz	400 Hz	1 kHz	2 kHz	5 kHz
TH0490-5kHz-2	100m	20	8	5	6	6	8	8
	100m	10	10	6	8	8	10	10
	200m	10	8	5	6	6	8	8
	200m	5	10	6	8	8	10	10
	500m	5	5	3	3	3	5	5
	500m	2	8	3	5	5	6	8
	1	2	5	3	3	3	5	5
	1	1	8	3	5	5	6	8
	2	1	5	3	3	3	5	5
	2	500m	8	5	6	8	10	10
TH0490-5kHz-20	1	2	9	6	7	7	10	10
	1	1	11	7	10	10	12	12
	2	1	9	6	7	7	10	10
	2	500m	11	7	9	10	12	12
	5	400m	6	4	4	4	7	7
	5	200m	9	4	6	6	8	10
	10	200m	6	4	4	4	7	7
	10	100m	9	4	6	6	8	10
	20	100m	6	4	4	4	7	7
	20	50m	9	6	7	9	12	12

5. Specification(TH0490-100kHz)

5.1 Amplitude

Type	Nominal Current Input (A)	Loop Load (Ω)	Ratio Measurement Uncertainty(k=2, ppm)
Type	Nominal Current Input (A)	Loop Load (Ω)	5 kHz	10 kHz	20 kHz	50 kHz	100 kHz
TH0490-100kHz-2	100 m	20	6	7	9	10	12
	100 m	10	7	9	12	12	16
	200 m	10	6	7	9	10	12
	200 m	5	7	9	12	12	12
	500 m	5	4	5	7	8	10
	500 m	2	5	7	9	10	12
	1	2	4	4	6	8	10
	1	1	5	5	7	8	10
	2	1	4	4	6	8	10
	2	500 m	6	6	9	10	16
TH0490-100kHz-20	1	2	8	9	11	12	15
	1	1	8	10	13	14	18
	2	1	8	9	11	12	15
	2	500 m	9	11	13	14	15
	5	400 m	6	7	9	10	12
	5	200 m	7	9	11	12	15
	10	200 m	6	6	8	10	12
	10	100 m	7	7	9	10	12
	20	100 m	6	6	8	10	12
	20	50 m	8	8	10	12	18

5.2 Phase Displacement

Type	Nominal Current Input (A)	Loop Load (Ω)	Measurement Uncertainty (k=2, μrad)
Type	Nominal Current Input (A)	Loop Load (Ω)	53 Hz	100 Hz	400 Hz	1 kHz	2 kHz	5 kHz
TH0490-100kHz-2	100 m	20	8	5	6	6	8	8
	100 m	10	10	6	8	8	10	10
	200 m	10	8	5	6	6	8	8
	200 m	5	10	6	8	8	10	10
	500 m	5	5	3	3	3	5	5
	500 m	2	8	3	5	5	6	8
	1	2	5	3	3	3	5	5
	1	1	8	3	5	5	6	8
	2	1	5	3	3	3	5	5
	2	500 m	8	5	6	8	10	10
TH0490-100kHz-20	1	2	9	6	7	7	10	10
	1	1	11	7	10	10	12	12
	2	1	9	6	7	7	10	10
	2	500 m	11	7	9	10	12	12
	5	400 m	6	4	4	4	7	7
	5	200 m	9	4	6	6	8	10
	10	200 m	6	4	4	4	7	7
	10	100 m	9	4	6	6	8	10
	20	100 m	6	4	4	4	7	7
	20	50 m	9	6	7	9	12	12

6. Ordering Information

TH0490 Bisector Current Ratio Standard Ordering Information

7. General Specifications

Power Supply	—
Temperature Performance	Working temperature: 18 °C ~ 28 °C； Storage temperature: -20 °C ~ 70 °C；
Humidity Performance	Working humidity:（15% ~ 80%）R·H，no condensation; Storage Humidity: < 95%R·H，no condensation.
Input/output Interface	Input: N female Output: N male
Maximum Dimensions	215 mm (W) × 130 mm (D) × 62 mm (H)