td1330 field tester of ac charging spot for electric vehicle -凯发k8国际

overview

td1330 is a portable instrument specially designed for on-site detection of ac charging spot. its ac voltage measurement is up to 300 v, ac current measurement is up to 78a, and ac power/electric energy accuracy class is 0.02/0.05/0.1 optional. the instrument is suitable for on-site detection and conductive charging interoperability test of ac charger for metrology institute, electric power department and manufacturer.  

reference standard

● gb/t 20234.1-2015 connection set for conductive charging electric vehicles—part 1：general requirements

● gb/t 20234.2-2015 connection set for conductive charging electric vehicles—part 2：ac charging coupler

● gb/t 28569-2012 electric energy metering for electric vehicle ac charging spot

● jjg 1049–2018 verification regulation of off-board charger for electric vehicles

● jjg 1148–2018 verification regulation of ac charging spot for electric vehicles

functions

● ac harmonic measurement: it can detect 2~64 harmonics with wide dynamic range.

● waveform display: real-time curve display and record of u (t), i (t), p (t), e (t).

● environmental temperature measurement: the temperature sensor is equipped to measure the site environmental temperature to correct the working error.

● clock verification: built in gps clock module, it can display real-time clock and synchronize with beijing time.

● built-in vehicle control and guidance circuit: it can complete the interoperability test of off-board charger, the adjustment range of r2 resistance simulation module is 500ω~4000ω, the step value of which is 1ω, and the adjustment range of r3 resistance simulation module is 1400ω~ 8000ω, the step value of which is 1ω. each contact is provided with on-off switch, which can realize the simulation of the contact state.

● the frequency and duty cycle of the pwm signal on the cp line in the control and guidance circuit are real-time display.

features

● anti-dc current transformer technology is adopted , there are no mechanical contacts such as switches and relays in the current loop, which ensure higher reliability.

● large current can be measured without wiring, and a single connection can automatically complete the preset test items.

● the current measurement loop achieves high isolation between the voltage circuit and the power supply, which can guarantee higher safety.

● the instrument can be calibrated with special calibration terminal.

● high-definition lcd touch screen is adopted, which has intuitive interface, convenient operation and is visible in sunlight.

● the instrument is equipped with rs232, rs485, usb, wlan, wifi interface and host computer software to facilitate the establishment of automatic test system.

● portable instrument box with high level of anti-seismic and electrical protection is equipped, which is very convenient to carry to the scene.

test items

● calibration of charging energy metering characteristics: working error, charging amount display error, payment amount error, clock indication error, etc.

● conductive charging interoperability test: connection confirmation test, charging readiness test, start and charge phase test, normal charge end test, charge connection control timing test, cc circuit break test, cp circuit break test, cp grounding test, output over current test, disconnect switch s2 test, cp circuit voltage limit test.

connection diagram of charger on-site detection

technical specifications

ac voltage

measurement characteristic：

● range switching: automatic or manual

● measurement range: 30 v～300 v

● minimum resolution: 1 mv

● display: 7 digits

● accuracy of harmonic measurement: ± 0.05%*rg

ac current

measurement characteristic：

● range switching: automatic or manual

● measurement range: 1 ma～78 a

● minimum resolution: 10 na (range of 20 ma)

● display: 7 digits

● accuracy of harmonic measurement: ± 0.05%*rg

frequency and phase

● frequency: 45.000 hz～65.000 hz。

   resolution: 0.001 hz

   accuracy: ± 0.01 hz。

● phase: 0.000°～359.999°

   resolution: 0.001°

   accuracy: ± 0.025°

ac electric energy / power

measurement characteristics：

● ac electric energy / power measuring range: combination of ac voltage range and ac current range

● power factor measuring range: -1.000000…0.000000…1.000000

● output of standard electrical energy pulse: the maximum frequency is 60 khz

   active and passive pulse is supported, and the load capacity is greater than 20 ma

● input of standard electric energy pulse: the maximum frequency is 100khz with the amplitude of 0~5v.

● clock accuracy: ± 0.1 ppm

general specifications

● line power: ac ( 198 v～253 v )，( 50 ± 2 ) hz

● maximum power consumption: 80 va

● operating environment: -30 ℃～55 ℃，20%～80% r·h，non-condensing

● storage environment: -30 ℃～70 ℃，< 80% r·h，non-condensing

● dimensions（width*depth*height）: 550 mm × 460 mm × 260 mm)

● weight: 21.5 kg

● standard interfaces: rs232、rs485、usb、wlan、wifi

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