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Acrel ASJ Series Installation And Operation Manual

Residual current operated relay
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041
ASJ series Residual Current Operated
Relay
Installation and Operation Manual V2.2
Acrel Co., Ltd.

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Summary of Contents for Acrel ASJ Series

  • Page 1 ASJ series Residual Current Operated Relay Installation and Operation Manual V2.2 Acrel Co., Ltd.
  • Page 2 Declaration Please read this instruction carefully before using this product. All pictures, logos and symbols involved are owned by Acrel Co., Ltd. All or part of the content shall not be reproduced publicly without written authorization by non-company personnel. Please read the instructions and precautions in this operation manual carefully before using this series of products.
  • Page 3 Changelog Time Versions Reasons for revision 2016.09 V1.3 Add ASJ10L 2017.09 V1.4 delete break line alarm 2018.12 V1.5 Add chapter 4.2.2 2019.12 V1.6 Delete ASJ10L 2020.12 V1.7 Add ASJ10L, modify address, contact Modify AC type output as open, Modify some mistake, add 2021.04 V1.8 transformer...
  • Page 4 Contents 1 Introduction ................................. 1 2 Type Specification..............................1 3 Technical Parameters ..............................2 4 Installation Guide ............................... 3 4.1 Overall Dimensions and Hole Size ......................3 4.2 Installation Instructions ..........................4 4.3 Terminals and Wiring ............................. 5 4.4 Typical wiring diagram ........................... 6 4.5 Matters Needing Attention ..........................
  • Page 5 ASJ series residual current operated relay 1 Introduction ASJ series residual current operated relay can be combined with low voltage circuit breaker or low voltage contactor to form a residual current protection device, which is mainly used for the TT and TN system distribution lines with AC 50Hz and rated voltage of 690V and below. It...
  • Page 6 AC-type residual current measurement; Alarm prompt of current crossing line; Rated residual operating current can be measured; ASJ20-LD1C Limit non-driving time can be set; Two sets of relay output; With local and remote "test" and "reset" functions. Panel (48*48) A-type residual current measurement; Current percentage light column display;...
  • Page 7 automatic reset Run temperature: -20℃ ~ +55℃, Storage temperature: -30℃ ~ Temperature +70℃ Installation Humidity ≤95%RH, no condensation, and no corrosive gas places and use Elevation ≤2000m environment Class of pollution Grade three Installation category Type Ⅲ Notes: 3. ASJ10L-LD1A rated residual operating current I is 10mA~30A continuously adjustable;...
  • Page 8 ASJ20 appearance dimensions ASJ20 opening dimensions The specific dimensions of the instrument are shown in the table below. Device model Panel size (mm) Shell size (mm) Hole size(mm) ASJ10 85*54*64(L*W*H) —— —— ASJ10L 80*54*73(L*W*H) ASJ20 48*48 44*44*84.5(W*H*D) 45*45 Notes: 5.ASJ20 housing plus wiring terminals, the depth from panel to terminals is 106mm. 4.2 Installation Instructions 4.2.1 Installation Steps The ASJ10 series instrument is mounted on a guide rail, using a standard 35mm guide rail,...
  • Page 9 4.2.2 Installation of Accessories Accessories include residual current transformers and magnetic rings. The remaining current transformer passes through all the phase lines and neutral lines, and is installed in the cabinet with a firm fixation. The secondary side wiring is connected to terminals 40 and 41 of the instrument through a magnetic ring.
  • Page 10 4.3.3 Additional functional terminals 15 23 16 21 22 Remote test remote reset RS485 interface (Only ASJ10L-LD1A) 4.4 Typical wiring diagram 4.5 Matters Needing Attention (1) The grounding wire (PE) shall not penetrate the remaining current transformer. (2) For single-phase power grid, only phase lines and neutral lines need to penetrate the residual current transformer.
  • Page 11 5 Operating Guide 5.1 Description of AC Type Panel Name Function Always lights when the power Power light supply is normal Reset button To reset the system Lights when the operating Alarm light current I is exceeded Δn Self-check, for indicator light Test button and the relay residual current...
  • Page 12 Reset key In programming mode, used to return to previous menu or mode In SOE page of operation mode, it is used to view the fault records； Acrel ASJ10 Td/- key Alarm1 In programming mode, it is used to enter next...
  • Page 13 Different operating characteristics of residual current operated protective devices Possible fault current waveforms in systems with semiconductor components Applicable action Schematic diagram of the circuit Line current waveform Fault current waveform characteristic Phase control 9 / 28...
  • Page 14 Burst control Single- phase Two- pulse bridge Two- pulse bridge, half controlle 5.4.2 System Selection Instructions 5.4.2.1 TT System In this system, there is a point of direct grounding at the power supply end, and the exposed accessible parts of the electrical device are connected to a grounding conductor that is electrically independent of the power supply system grounding.
  • Page 15 device) cannot provide protection against insulation faults, and it is recommended to use RCD for protection. RCD selection: threshold setting �� �� ≤ �� is the ground conductor resistance; is the rated action value of the rated residual current protection device; Δn is the rated safety voltage of electrical equipment.
  • Page 16 Characteristics: Fault current is very high and is limited only by the cable impedance; insulation fault may cause risk of electric shock and requires immediate disconnection of the line. Selection of residual current operated protective device (only for TN-S system): If a residual current operated protective device is used to provide automatic circuit disconnection protection for TN-S system, the following conditions should be met: ��...
  • Page 17 0.8�� �� ≤ �� + �� Where Uo is the nominal phase-to-ground voltage, Rph is the resistance of the live conductor (phase or neutral) of the faulty circuit, and RPE is the resistance of the circuit protection conductor. 5.4.2.3 IT Syetem In this system, the neutral point of the transformer is not extracted or the neutral point is grounded via high impedance, and the exposed conductive parts are all interconnected and connected to the same grounding electrode...
  • Page 18 The inherent leakage current is generally caused by the low insulation level between the phase conductor and the ground, or the presence of a filter (or capacitor) between the phase conductor and the ground. The inherent leakage current may be the leakage current of the power frequency or the leakage current of the harmonic.
  • Page 19 0.18 0.29 0.38 0.50 0.57 18.5 0.65 0.72 0.87 1.00 1.09 1.22 1.48 Reference value of leakage current for 220/380V single-phase and three-phase lines laid through pipes (unit: mA/km) Insulation Materials Rubber Conductor cross-sectional area (mm ） (2) For type A and AC residual current relays, they are only applicable to the rated power supply network frequency (usually 50Hz).
  • Page 20 (3) The rated residual operating current I should fully consider the normal leakage current Δn value of the system. Generally, it should not be less than 2~4 times the maximum value of the normal measured leakage current or the empirical value I : when used as a single machine, >4I ;...
  • Page 21 General branch line and terminal: 30~100mA, ≤ 0.1s; branch line: 300~500mA, 0.2~0.8s; Main line: 500~1000mA≤ 2s. 5.5 Instructions for Transformer AKH-0.666L-XX(PB)series residual current transformer. The dimensions are shown in the following figure. (Unit: mm) Rated Overall dimensions Hole size Installation dimensions Product Tolerance (mm)
  • Page 22 11.5 Installation Overall dimensions Hole size dimensions Reference current (mm) (mm) Product model (mm) Φ L-110&25(PB) 0~100 L-140*35(PB) 100~200 L-190*35(PB) 250~400 L-230*45(PB) 450~600 L-300*60(PB) 600~1000 Reference current Overall dimensions Hole size Installation dimensions Product model (mm) (mm) (mm) 18 / 28...
  • Page 23 L-400*120(PB) 1000~1250 L-500*150(PB) 1500~2000 Explain: The current transformer with corresponding specifications should be selected according to the rated current of the circuit and the thickness of the wire. (If you have special requirements on the shape and range of the transformer, please contact us) 19 / 28...
  • Page 24 6 Typical Applications 125A(0.4kV) ~220V ~220V ~220V ~220V ~220V ZCT L-45 ABCN ABCN A B C N ABCN ABCN Load Load Load Load 7 Programming Menu Chapters 7 and 8 apply only to ASJ10L-LD1A. First Menu Second Menu Third Menu Descriptions Addr 1~247...
  • Page 25 9600, 19200, 38400 Select a modified modified bit Rated residual operating current setting Select a modified modified bit AL.Pr Warning operating current setting Select a modified modified bit Alarm, warning operating current return rSt.P value Select a modified modified bit Limit non-driving time setting 000,001,010,011,1 none...
  • Page 26 Td/+ key and Td/- key are used to switch channels between the second level menu, then press PROG key, use Td/+ key and Td/- key to modify the specific value. When you're done, press PROG or RESET to return. After the modification is completed, press RESET key to exit. Before exiting, you should choose whether to save or not.
  • Page 27 Running Long Press PROG PASS Press Td/- to modify, Press Td/+ to modify number, password confirm, press PROG Addr 0030mA 0030mA Press PROG Press Td/- Press Td/+ or Td/- Press Td/+ Press RESET Press PROG 50mA 0050mA Press RESET SAvE Press PROG Running (3)Set the limit non-driving time to 60ms.
  • Page 28 7.2 Programming Example Running Press RESET back, Long Press PROG enter PASS PASS Press Td/- to modify, press Td/+ to modify number, password confirm, Press PROG 0001 bAUd AL.pr rSt.P Addr Press RESET Press PROG 5~90 0-10s 1~247 9600 10mA~30A 10mA~30A TimE PASS...
  • Page 29 Function code Function code High Bytes Start byte address High Low byte Register byte data High Low byte Number byte of registers Low byte Low byte High Low byte check code byte check code High byte 8.2.2 Function code 10H: Write the registers The function code 10H allows the user to change the contents of multiple registers, which can write the time and date in this meter.
  • Page 30 8.3 ASJ10L-LD1A Address Table Read- Data Address Parameter Value Range Write Type Residual current 0~30000mA UINT16 value 01H~07H Reserved UINT16*7 Alarm current 10~30000mA（default 30000） UINT16 setting Warning current 10~30000mA（default 30000） UINT16 setting 10~15 0AH~0FH Reserved UINT16*6 Limit non-trip time 0~10000ms (default 0) UINT16 value 17~23...
  • Page 31 plus SOE recording 1: Alarm only lights up the LED 2: No alarm 0:1000/1 CT ratio 1:2000/1 UINT16 2:2500/1 Reset Write 1 to reset UINT16 24H high Year 00~99 stand for 2000~2099 UINT16 24H low Month 1~12 25H high 1~31 UINT16 25H low Hour...
  • Page 32 Automatic reset The terminals 97 and 96 of relay are normally closed by default and 96 and 95 are normally open by default bit1 The terminals 97 and 96 of relay are normally open by default and 96 and 95 are normally closed by default Relay AL2 terminals 10 and 9 are normally open by default bit0...
  • Page 33 TEL.: 0086-21-69158338 0086-21-69156052 0086-21-59156392 0086-21-69156971 Fax: 0086-21-69158303 Web-site: www.acrel-electric.com E-mail: ACREL008@vip.163.com Postcode: 201801 Manufacturer: Jiangsu Acrel Electrical Manufacturing Co., LTD. Address: No.5 Dongmeng Road, Dongmeng industrial Park, Nanzha Street, Jiangyin City, Jiangsu Province, China TEL: 0086-510-86179966 Fax: 0086-510-86179975 Web-site: www.jsacrel.com Postcode: 214405 E-mail: sales@email.acrel.cn...

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