JSY-11S Metal-Oxide Surge Arrester Main Surge Arrester Sued on Counter

I. Purpose 

JSY-11S surge arester counter is a device for recording the operation times of a lightning  arrester under the lightning arrester connecting in series. It is applicable to lightning arrester  with grade not exceeding 220KV. The environmental condition of using site is the same to the  connecting lightning arresters. It is not applicable to places with heavy pollution and  strenuous vibration. It applies zinc oxide varistor and has relative improvement on the  electrical performance.

II. Using Conditions 

1. It is applicable to exterior or interior.

2. Environmental temperature (-40 to +40) ℃.

3. The altitude can’t be over 2000m. 

4. Supply frequency (48 to 62) Hz. 

5. No place with strenuous vibration.

III. Structure and Characteristic

1. Electric Principle

A discharge counter mainly consists of components like sampling varistor, silicon bridge  rectifier, high-voltage condenser and electromagnetic counter, etc. The discharge current of  lightning arrester generates voltage on the varistor (nonlinear resistance), and charges on  condenser through silicon bridge rectifier and discharge to electromagnetic counter. The  counter records every time it discharges, so as to realize the operation times of lightning  arrester.

In the picture: B – Lightning Arrester, C – Condenser, J – Electromagnetic Counter, Z – Rectifier Bridge, R1 – Sampling Varistor, R2 – Step-down Current Limiting Resistor. The  electric principle of counter is as Picture 1.

2. The enclosure of this product applies premium stainless steel enclosure. It has good rot  resistance and good sealing property, not being influenced by external environment. Inner  components have good ageing resistance, which can run in the electric power system for long  term.

JSY-11S lightning arrester discharge counter applies dual pointer display. The display has the  advantages like clear display and easy observation, etc. The counting cycle index is from 0 to  999, which is to say 1000 times for a cycle. It is beneficial to record the times of lightning of  going through the lightning arrester relatively completely in a short time.

IV. Main Technical Properties

Product implementing standard: JB/T 10492-2011 Monitoring Device for Metal Oxide  Lightning Arrester. The main technical properties are as the below table：

V. Inspection and Acceptance & Installation

1. Inspection and Acceptance:

(1) When inspect and accept products, open the packing case and inspect whether the  accompanying documents (operation manual, packing list and certificate of approval) are  complete.

(2) Inspect whether the accessories are complete according to the packing list. Meanwhile,  inspect whether the product appearance has scrape and whether the insulator has crack and  dropped piece.

2. When installing, the dig angle between the plane of the panel of counter and the horizontal  plane should be smaller than 85°, so as to avoid waterlogging influencing observation. Use M10  bolts to fix the metal enclosure base to the metal support and connect the ground through the  ground bus. (The monitor base can also be the ground bus.) Another end connects the electrode  through the top of the insulator and connects the low-pressure end of the lightning arrester by wire  (or aluminum strip). It must install securely and contact reliably. (Installation dimension please see  the attached drawing.)

VI. Test Methods

When users receive products, they can use the below methods to test the products

1. Operation Performance Test: Connect a condenser with withstand voltage over 500V and  capacity over 5MFD to a 500V megger. Rotate the megger with the rotate speed of 90 to 120 per  minute to charge the condenser. When the voltage of the condenser is monitored to be 300V by  universal meter, disconnect the condenser connecting with the megger. Use the condenser to  discharge the counter instantaneously and the discharge counter should count it as once. Perform it  for 10 times consecutively and they should be reliable operations.

2. The test of discharge counter can also be performed by the specialized tester produced by our  factory. For details please see Instruction of JCQT6000 Lightning Arrester Monitor Tester.

VII. Precautions 

1. After putting the discharge counter into operation, operators on duty shall keep monitoring it  and record the reading of the discharge counter regularly, so as to master the times of lightning  current going through the lightning arrest.

2. Note to not overstress on the insulator to avoid destroying the sealing. Meanwhile, users can not  take apart the lightning arrester discharge counter casually.

VIII. Quality Assurance 

On the condition of user using and installing the product according to regulations, the company is  responsible for the “Three Guarantees” after-sales service within the period of “Three Guarantees”.  The period of “Three Guarantees” is a year. If user has special requirements, he can come and  mail for negotiation.