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AC/DC surge protection device
Anhui Jinli Electric Tech. Co., Ltd, a professional manufacturer of surge protection device, has AC SPD and DC SPD, with CE, RoHs, TUV, UL certificates.  And we keep offering SPDs to Sungrow, Goodwe, Growatt, Hopewind, Solax Power, INVT, and also work with Huawei on some projects. AC surge protection device is used in AC power supply system (50/60Hz), such as TT, TN, IT, power supply system of network communication equipment (WIFI, 4G and 5G), and factory low-voltage power  control system to protect from lightning striker and transient over-voltage. Uc of Jinli AC SPD:175V, 275V, 320V, 350V, 385V, 440V, 485V and 750V. DC surge protection device is used in all kinds of DC power system, such as broadcasting systems, communication systems, security monitoring systems, fire control systems, industrial control systems, and various other DC power equipment with DC voltage of 24V, 48V, 110V, 220V etc. Uc of Jinli DC SPD is: 85V, 225V, 350V.
AC surge protection device
  Jinli AC surge protective device is used in AC power supply system (50/60Hz), such as TT, TN, IT, power supply system of network communication equipment (WIFI, 4G and 5G), and factory low-voltage power  control system to protect from lightning striker and transient over-voltage. Uc of Jinli AC SPD: 175V, 275V, 350V, 385V, 440V, 485V and 750V, including type 1+2 ac spd, type 2 ac spd.  For type 1+2 SPD, we have Iimp=15kA, Iimp=25kA, Iimp=12.5kA. For type 2 spd, we have In=10kA, In-=20kA, In=40kA, In=60kA
DC surge protection device
DC surge protective device is used in all kinds of DC power system, such as broadcasting systems, communication systems, security monitoring systems, fire control systems, industrial control systems, and various other DC power equipment with DC voltage of 24V, 48V, 110V, 220V etc.  Uc of Jinli DC SPDs is: 85V, 225V, 350V
Solar surge protection device
Photovoltaic surge protection device is avalibale for 600V, 800V, 1000V and 1500V dc power system of phototvoltaic power generation equipment in DC side, DC combiner box, inverter in DC side, etc. 
Signal surge protection device
Signal surge protection device is used in weak current control systems (industrail control systems, telecommunication systems, fire alarm systems, security monitoring systems etc.) To ensure the telecom or data equipment sufficiently reliable, the signal sugre protection device must be installed to protect data equipment from transient overvoltage. 
Type 1 AC SPD
Jinli type 1+2 ac spd, has Iimp=15kA, Iimp=25kA, Iimp=12.5kA, from Uc=385V, Uc=680V, Uc=750V.  For JLSP-BC680/12.5/3P+1/Y, Y means remote signaling, is offered to Huawei projects, with CE, TUV, RoHS certificates. 
PCB type surge protection device
PCB type surge protection device is voltage-limiting type SPD and mainly used to prevent surge overvoltage in AC/DC power supply circuite, which equipped with safety disconnection device and status indicator. Normally, the indicator window is green, and will turn to red under malfunction and generate remote alarm signaling. 
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dc spd 1000v
Jinli PV surge protection device solar DC SPD 1000V
Type 2 surge protector 1000V SPD In:20kA Imax: 40kA Low voltage Up Internal disconnection, statue indicator, and remote signaling IEC 61643-11 CE certificate
dc spd 600v
Jinli 2 poles solar surge protection device DC SPD 500V 600V
Type 2 surge protector 600v SPD In:20kA Imax: 40kA Low voltage Up Internal disconnection, statue indicator, and remote signaling IEC 61643-11
dc spd
Single phase power surge protection device DC SPD 220v
Type 2 DC surge protector In:20kA Imax: 40kA Low voltage Up Internal disconnection, statue indicator, and remote signaling IEC 61643-11
600v dc spd
Type 2 single phase surge protection device dc SPD 600V
Type 2 surge protector 600v SPD, single phase surge protection device In:20kA; Imax: 40kA Low voltage Up Internal disconnection, statue indicator, and remote signaling IEC 61643-11 OEM acceptable SPD factory, professional manufacturer
ac surge protective device
Type 2 three phase ac surge protection device power SPD 175V
Type 2 surge protector, Uc=175V, 4poles ac spd, surge protector 40ka In:20kA Imax: 40kA Low voltage Up Internal disconnection, statue indicator, and remote signaling IEC 61643-11
dc power supply spd
Jinli type 2 surge protection device 24V 48V 2poles DC SPD
Type 2 DC surge protector In:20kA; Imax: 40kA Low voltage Up Internal disconnection, statue indicator, and remote signaling IEC 61643-11 OEM & ODM SPD factory, professional manufacturer
type 2 dc spd
Single phase type 2 power surge protector dc spd 350V
Type 2 DC 350V surge protector In:20kA Imax: 40kA Low voltage Up Internal disconnection, statue indicator, and remote signaling IEC 61643-11
spd dc 20ka
Jinli small size dc spd 20kA surge protector
Type 2 DC surge protector, 670V dc surge protector In:10kA, Imax: 20kA Low voltage Up Internal disconnection, statue indicator, and remote signaling IEC 61643-11 OEM/ODM SPD manufacturer Sungrow, Goodwe, Growatt supplier, work with Huawei
dc spd 1000V
Jinli Type 2 DC surge protector 3poles SPD 1000V
Type 2 surge protector 1000V SPD, DC SPD 3 pole In:20kA; Imax: 40kA Low voltage Up Internal disconnection, statue indicator, and remote signaling IEC 61643-11 CE, UL certificate SPD factory, professional OEM manufacturer
dc surge protection device
Jinli type 2 dc surge arrester SPD 2 pole 1000V
Type 2 DC SPD 2 Pole, dc 1000V 2 pole In:20kA  Imax: 40kA Low voltage Up Internal disconnection, statue indicator, and remote signaling IEC 61643-11 OEM acceptable SPD factory, professional manufacturer
About Us
Anhui Jinli Electric Tech. Co., Ltd
  Anhui Jinli Electric Tech. Co., Ltd (hereinafter refered to as Jinli), located in High-tech industrial development zone, Hefei, Anhui province, is a national high-tech enterprise and one of the best innovation enterprises in Chinese lightning protection industry, with 56000 sq.m. for R&D, production and office, including 3800 sq.m. for laboratory.    Anhui JINLI Electric Tech. CO., LTD is always professionally dedicated to SPD production and owns 3 laboratories, which have the full test capabilities compliance with national and international standards such as IEC61643, UL1449. The labs have been assessed and found eligible to participate in UL witness data program, as well as testing at manufacturer’s premises laboratory approval by TüV Rheinland Group.  The surge protectors all pass the CE and Rosh certificates, and parts of them obtain UL certificate.   * 2006/3 The birth of Anhui Golden Power Electronic Co., Ltd   * 2008/9 Surge protective devices were 1st used in Luanda railway project in Angola   * 2009/6 1st manufacturer to offer SPDs in 2*300MW cogeneration project   * 2009/11 Achieved the National Hi-tech enterprise certification   * 2011/5 Renamed to Anhui Jinli Electric Tech. Co., Ltd   * 2012/8 Participated in formulating China lightning protection GB/T 21714   * 2012/11 Build the largest enterprise-class test center and MOV materail laboratory in east China   * 2014/4 Passed TUV approval for solar SPD   * 2014/11 Awarded the best innovative enterprise in lightning protection industry   * 2015/3 "Special intelligent power saving cabinet for PV SPD" came to the market   * 2016/4 Released new products of solar surge protection device   * 2016/8 Obtained RoHS certificate   * 2017/8 Obtained CE certificate and Thayer certificate of DOC   * 2018/7 Obtained the eligibility to participate in UL witness test data program   * 2018/7 Changed to new logo  Baed on the concept of "Adering to original", Jinli is committed to power system security and focused on the over-voltage oritection  of electrical system. With technial service network, we can provide fast and professional service for users and creat a safe and worry-free electricity environment. 
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2008
Established
56000
Factory area(㎡)
30+
Patent
20+
Research Team
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Through the nationwide sales and technical service network, we provide users with fast and personal services and create a safe and worry-free power environment.

Our Jinli power industry Surge protection device
06/ February 2023
Our Jinli power industry Surge protection device
Product overview: The surge protector adopts excellent non-linear overvoltage protection components. Under normal circumstances, the surge protector is in a high-impedance state and the leakage current is extremely low, thus ensuring that the power system will , The surge protector is immediately turned on in nanoseconds, limiting the overvoltage amplitude within the safe operating range of the equipment, and at the same time releasing the surge. Subsequently, the surge protector quickly changes to a high-impedance state, so as not to affect the normal power supply of the power system. Features: 1. Reliable thermal tripping protection device; 2. Unique short circuit and overcurrent tripping function; 3. Visual status indication window: green/transparent (normal), red (fault) working status at a glance; 4. Through current Large capacity, low residual voltage; 5. Fast response time, action within nanoseconds; 6. Remote signaling contacts are optional. For specific selection and parameters, please refer to the part of the electric power industry selection manual "Instructions for Surge Protector 2022 Second Edition"
  • Why should we choose Jinli surge protective device FTU (Part III)
    03/ February 2023
    Why should we choose Jinli surge protective device FTU (Part III)
    (7) Accident records. Record the maximum fault current at the time of the accident and the average load for a period of time before the accident (usually Imin), so as to analyze the accident, establish the fault section, and provide a basis for load restoration when the power supply of the healthy section is restored.   (8) fixed value remote modification and calling fixed value. In order to start the process of accident recording and other processes in time when a fault occurs, the FTU must be set, and the set value should be able to adapt to the change of the distribution network operation mode. Make FTU able to receive the specified modified setting value from DAS control center, and enable DAS control center to call the current setting value of FTU at any time.   (9) Self-test and self-recovery functions. FTU should have a self-detection function, and timely alarm when the equipment itself fails; FTU should have a reliable self-recovery function, once it is disturbed and causes a crash, the system will resume normal operation through the monitoring timer (W bit system.   (10) Remote control lockout And manual operation function. When repairing lines or switches, the corresponding FTU should have the function of remote control and locking to ensure the safety of operation and avoid vicious accidents caused by misoperation. It should also be able to provide manual closing/tripping buttons, In case of failure of the channel, manual operation can be performed to avoid directly operating the switch on the lever.   (11) Long-distance communication function. FTU has long-distance communication function, and can communicate with various communication transmission equipment ( DCE) is connected, the important issue is the communication protocol of FTU, which is faced with an urgent need
  • Why should we choose Jinli surge protective device FTU (Part II)
    03/ January 2023
    Why should we choose Jinli surge protective device FTU (Part II)
    Half-wave Fourier algorithm; measuring the current under normal operating conditions has high requirements for measurement accuracy, but the response can be slower, and the required current effective value is an average concept, and the root mean square algorithm is generally used. The protection data and measurement data generally cannot be shared, but must be collected independently, and should be taken from the protection TA and measurement TA windings respectively. Currently, only one set of protection TA can meet the requirements for domestic 10kV vacuum switches. FTU generally should also monitor the power supply voltage and the remaining capacity of the battery.   (3) Remote control function. FTU should be able to accept remote commands to control the switch on and off on the pole, and start the energy storage process, etc.   (4) Statistics function. The FTU should also be able to monitor the number of times and operation time of the switch and the level of the accumulated cut-off current.   (5) Time synchronization function. FTU should be able to accept the time synchronization command from the main system so as to keep consistent with the system clock.   (6) Sequence of Event Recording (SOE). Record the time and sequence of changes in state quantities.
  • Introduction to Jinli surge protection FTU (Part I)
    01/ February 2023
    Introduction to Jinli surge protection FTU (Part I)
    FTU is the abbreviation of "distribution automation terminal", also known as "feeder terminal equipment". Its main function in the power distribution system is to collect local AC measurement (such as voltage, current, power, etc.) (such as switch performance, etc.), and execute remote control commands (such as jumping and closing switches). The middle section of distribution automation is widely used in 10kV distribution lines, and can monitor load switches, sectionalizers, ring network contact switches, etc. The FTU can be installed on the outdoor wire pole, and can be used for single-wire control or double-wire control erected on the same pole.  (1) Remote signaling function. The FTU should be able to collect important state variables such as the current position of the switch on the pole, whether the communication is normal, and the completion of energy storage. If the FTU itself has a microcomputer relay protection function, it should also respond to the remote signaling of the protection action. (2) Telemetry function. The FTU should be able to collect analog quantities such as the voltage of the line, the load current experienced by the switch, active power, and reactive power. Generally, the fault current of the line is much larger than the normal load current, and the dynamic range of the input current must be relatively large to collect fault information. The purpose of measuring the fault current is to carry out relay protection and judge the fault section. Therefore, the measurement accuracy is not high, but the response speed is required to be fast, and the fundamental wave signal must be filtered out.
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