Công tơ mẫu RD-31 3 Pha cấp chính xác +/- 0.02

Xuất xứ: EU
Model: RD-31
Cấp chính xác: +/- 0.02
Hãng Radian Research

General

Operating Range:

Current: 0.001 to 120 Amp, (200 Amp optional)

Voltage: 30 to 630 Vac (60Hz), 30 to 525 Vac (50Hz)

Aux Power: 60 to 630 V (autoranging)

Frequency: 45 Hz to 65 Hz

	Harmonic Analysis: < 64th (bandwidth 10000 Hz)
Dimensions:	5″(127 mm), 17.5″ (444.5 mm), 6.25″ (158.7 mm)
Weight:	16 lbs (7.2 kg), Shipping weight 28 lbs (12.6 kg)

Environment:.	Operating & Storage Temp: -20°C to +70°C
	Humidity: 0 % to 95 % non condensing
	Vibration: All non destructive

Safety:	Hi-Pot: 2.3 kVrms, 60 Hz for 60 seconds
	Surge: IEEE 472 and ANSI 37.90
	Fused: Potential and Auxiliary Input
Warm-up:	15 seconds

Interface
Display:	Touch screen, color back lit LCD

Communications:	Serial Port: RS -232
	Sensor Port: Lemo type
	Clamp Probe Port: 3 CT Inputs (optional Clamps from Radian)

Inputs 1,2 & 3:	BNC Display gate: 150 Ohm pull up to 5 V, clamped at 5.7 V
	BNC Gate rate: 200 nS pulse width minimum, maximum 20 Hz repetition rate.
Outputs 1, 2 & 3: (default = 0.00001 Wh/pulse)	Programmable KH value Open collector, clamped at 27 V Max 2.1 MHz (200nS pulse width minimum) Selectable Watt Hours, VAR Hours, VA Hours
	Current Inputs: 6 mm (<120 Amp), 8 mm (<200 Amp option)
	Aux & Potential Inputs: 4 mm

Specifications
Function	Reading	Accuracy (ppm)³ TCAL¹ ± 5°C			Stability			Cal Unc. (ppm)	Temperature Coefficient⁶ (ppm/°C)
		RD-30	RD-31	RD-33	RD-30	RD-31	RD-33
Voltage	30 V to 630 V⁵	200	100	50	8	4	2	30	2.5
Current	1 mA … 10 mA²	280	140	70	12	6	3	50	2.5
	10 mA … 200 A
Power/Energy ^3,4	1 mA … 10 mA²	400	200	100	16	8	4	80	5
	10 mA … 200 A
Power Factor	> 0.5	0.04 %	0.02 %	0.01 %
	0.5	0.04%/2PF	0.02%/2PF	0.01%/2PF
Phase angle	0° … 360°	0.012°	0.006°	0.003°

RD-BR1 CT Burden & Ratio Analysis Specifications
Input Power	RD Standard connection (Allows 60-600V at Site)
Measurement Inputs	Primary CT Current:	0.1 – 3000 Amperes, 50 or 60 Hz (using probes)
	Secondary CT Current:	0.01 – 20 Amperes, 50 or 60 Hz
	CT Primary Probe Input Voltage:	3V RMS Max (using RR-CTA1)
	Probe Scales:	10mV/A
	Accuracy	Dependent on RD standard & clamp-on probe selected
CT Burden Testing	CT Burden Value:	0.1, 0.2, 0.5, 1.0,4.0 & 8.0 Ohms
	Resistive Element Tolerance:	+/- 1%
	Insertion Burden:	+/- 0.04 Ohms

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