Current Transducer HTB 50 .. 400 - P and HTB 50 .. 100 - TP For the electronic measurement of currents: DC, AC, pulsed..., with a galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). IPN = 50 .. 400 A Electrical data Primary nominal current rms IPN (A) ± 50 ± 100 ± 150 ± 200 ± 300 ± 400 VC IC Vd RIS VOUT ROUT RL Primary current measuring range IPM (A) ± 150 ± 300 ± 450 ± 500 ± 600 ± 600 Type Features HTB 50-P, HTB 50-TP1) HTB 100-P, HTB 100-TP1) HTB 150-P HTB 200-P HTB 300-P HTB 400-P Supply voltage (± 5 %) 2) Current consumption Rms voltage for AC isolation test, 50 Hz, 1 min Isolation resistance @ 500 VDC Output voltage (Analog)@ ± IPN, RL = 10kW, TA = 25°C Output internal resistance Load resistance ± 12 ..15 ± 15 2.5 > 500 ± 4 100 > 10 V mA kV MW V W kW Accuracy - Dynamic performance data X Accuracy @ IPN, TA = 25°C (excluding offset) Linearity error (0 .. ± IPN) L VOE Electrical offset voltage @ TA = 25°C VOH Hysteresis offset voltage @ IP = 0; after an excursion of 1 x IPN TCVOE Temperature coefficient of VOE HTB 50-(T)P HTB 100-(T)P .. 400-P TCVOUT Temperature coefficient of VOUT (% of reading) tr Response time to 90% of IPN step BW Frequency bandwidth (- 3 dB) 3) e < ± 1 < ± 1 < ± 30 % of IPN % of IPN mV < ± 1 < ± 2.0 < ± 1.0 < ± 0.1 < 3 DC .. 50 % of IPN mV/K mV/K %/K µs kHz General data TA TS m Ambient operating temperature Ambient storage temperature Mass Standards 2 pins of Ø2mm diameter are available on transducer - 40 .. + 80 - 40 .. + 85 < 30 ( < 36) EN 50178 : °C °C g 1997 ●● Hall effect measuring principle ●● Galvanic isolation between primary and secondary circuit ●● Isolation voltage 2500 V ●● Low power consumption ●● Wide power supply: ± 12 ..15 V ●● Primary bus bar option for 50 A and 100 A version for ease of connection Advantages ●● Small size and space saving ●● Only one design for wide current ratings range ●● High immunity to external interference. Applications ●● AC variable speed drives ●● Static converters for DC motor drives ●● Battery supplied applications ●● Uninterruptible Power Supplies (UPS) ●● Switched Mode Power Supplies (SMPS) ●● Power supplies for welding applications Application domain ●● Industrial for PCB soldering Notes : 1) -TP version is equipped with a primary bus bar. 2) Operating at ±12V ≤ Vc < ±15V will reduce the measuring range. 3) Derating is needed to avoid excessive core heating at high frequency. Page 1/3 120425/12 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com Current Transducer HTB 50 .. 400-P and HTB 50 .. 100-TP Isolation characteristics Vd Ve Vw Rms voltage for AC isolation test, 50 Hz, 1 min Partial discharge extinction voltage rms @ 10pC Impulse withstand voltage 1.2/50 µs 2.5 > 500 4 kV V kV dCp dCl CTI Creepage distance Clearance distance Comparative tracking index (Group IIIa) > 4.5 > 4.5 275 mm mm Application examples According to EN 50178 and CEI 61010-1 standards and following conditions : - Over voltage category III - Pollution degree 2 - Heterogeneous field EN 50178 IEC 61010-1 Single isolation 300 V 300 V Reinforced isolation 150 V 150 V Safety This transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the manufacturer’s operating instructions. Caution, risk of electrical shock When operating the transducer, certain parts of the module can carry hazardous voltage (eg. primary busbar, power supply). Ignoring this warning can lead to injury and/or cause serious damage. This transducer is a built-in device, whose conducting parts must be inaccessible after installation. A protective housing or additional shield could be used. Main supply must be able to be disconnected. Page 2/3 120425/12 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com Dimensions HTB 50 .. 400-P and HTB 50 .. 100-TP (in mm. 1 mm = 0.0394 inch) 第一视角 第三视角 第一视角 第三视角 第一视角 第三视角 第一视角 第三视角 Page 3/3 120425/12 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com