CN208423781U - A kind of electric power networks information machine room apparatus for protecting power supply - Google Patents
A kind of electric power networks information machine room apparatus for protecting power supply Download PDFInfo
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- CN208423781U CN208423781U CN201821104825.8U CN201821104825U CN208423781U CN 208423781 U CN208423781 U CN 208423781U CN 201821104825 U CN201821104825 U CN 201821104825U CN 208423781 U CN208423781 U CN 208423781U
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- 238000004458 analytical method Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
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Abstract
A kind of electric power networks information machine room apparatus for protecting power supply, the device include: the anti-surge circuit being made of varistor M1, varistor M2, varistor M3, gas-discharge tube LT；The delay protection circuit being made of time relay J1, A.C. contactor J2.AC AC power source Connection Time relay J1 after anti-surge circuit, time relay J1 connection A.C. contactor J2, A.C. contactor J2 connection self-recovering type overvoltage/undervoltage module M4, the time relay J1 connection GSM alarm.Self-recovering type overvoltage/undervoltage module M4 for AC AC power source is sampled and is handled, output AC power source to network computer room electrical equipment.A kind of electric power networks information machine room apparatus for protecting power supply of the utility model, the device are mounted in network information computer room, play the important function of protection network information machine room power supply, have the reasonable advantage of reliable in quality, design.
Description
Technical field
The utility model relates to a kind of apparatus for protecting power supply, specifically a kind of electric power networks information machine room power protection dress
It sets.
Background technique
All secondary units in Xiaogan power supply information network Metropolitan Area Network (MAN) covering city and affiliated company, wide area network include 10
The station 220KV, 48 110KV substations, the office network access and the access of marketing system dedicated network of 7 companies of counties and cities, bear
Duty local side access device, 220KV substation and company of counties and cities core switching device, backbone convergence device operation and maintenance and connect
Enter layer equipment and technology and supports work.High-end router equipment, the local office of company and provincial company interconnection are placed in information machine room
Domain net access device, server access switch, intranet and extranet safety protection equipment, company of counties and cities and Metropolitan Area Network (MAN) access switch etc.
More than 100 platform set of network and safety equipment；Use minicomputer 6 of various application systems, PC server 106, be entire Xiaogan
The nervous centralis of power supply production and operation.But the second half year in 2016, the network switch in information machine room frequently occurs damage
Failure, severely impacted power supply information network in power generation normal table run, bring pole to production and safety
The earth hidden danger.
At that time by understanding discovery on the spot in computer room, damage more: the H3 of Huasan Communication Technology Co., Ltd.
Two kinds of interchanger of CS3100 fast ethernet switch and Huawei QUIDWAYS2700SERIES are set
It is standby.Both equipment are all that alternating current 220V is powered, and without the device using harmonics device etc；Damage also has every time
Apparent event horizon, damage when sending a telegram here again after exactly having a power failure.
From the point of view of the above phenomenon analysis and caused by the surge that is likely to be in power grid.Wave is recognized according to available data
There are two the producing causes for gushing voltage: one is thunder and lightning, the other is the large-scale load on power grid be switched on or switched off (including compensation
The switching of capacitor) when generate.It is the power grid low-pressure side in location through analysis, without o-volt protection and surge suppressing device.Stop
After electricity, step down side does not keep connecting with subscribers' line disjunction.After sending a telegram here at this time, one, the excitation because of transformer
It shoves, the low-pressure side of transformer is made to induce the surge voltage of moment, amplitude is higher than the manyfold of normal value.Secondly, into machine
The firewire in room is parallel with zero curve closely coupled and longer, is equivalent to an invisible bulky capacitor, has one in a flash in incoming call
Biggish charging current can have a biggish impact to electronic product.Therefore the damage of network computer room interchanger is caused.
The device of various lightning protection Anti-surgings is various in style currently on the market, through understanding, after exclusive use or there is damage
The phenomenon that electric appliance；If the attack that can not resist thunder and lightning is used alone in under-voltage/over-voltage protection device.Therefore, a kind of protection circuit
Exclusive use is insecure, is also incomplete.
Summary of the invention
In order to solve the above technical problems, the utility model provides a kind of electric power networks information machine room apparatus for protecting power supply, it should
Device is mounted in network information computer room, plays the important function of protection network information machine room power supply, has reliable in quality, sets
Count reasonable advantage.
The technical solution that the utility model is taken are as follows:
A kind of electric power networks information machine room apparatus for protecting power supply, the device include:
The anti-surge circuit being made of varistor M1, varistor M2, varistor M3, gas-discharge tube LT；
The delay protection circuit being made of time relay J1, A.C. contactor J2；
The end L of AC AC power source connects the one end varistor M1, and the varistor M1 other end is separately connected varistor
The one end M3, AC AC power source N-terminal, the varistor M3 other end connect gas-discharge tube LT upper end, gas-discharge tube LT
Lower end connect ground terminal PE；The end L of AC AC power source connects the one end varistor M2, and the varistor M2 other end connects gas
The upper end of body discharge tube LT；
AC AC power source Connection Time relay J1 after anti-surge circuit, time relay J1 connection A.C. contactor
J2, A.C. contactor J2 connection self-recovering type overvoltage/undervoltage module M4, the time relay J1 connection GSM alarm；
Self-recovering type overvoltage/undervoltage module M4 for AC AC power source is sampled and is handled, output AC power source to network machine
Room electrical equipment.
The lower end of the gas-discharge tube LT is mounted with that thunder-and-lightning counter, the thunder-and-lightning counter are separately connected AC alternating current
The end L in source, N-terminal.
The power output end of the device is mounted with voltmeter V and ammeter A.
The device include three pieces be struck by lightning after lose the Anti-surging module NU6-II40/38 of valid flag, it is pressure-sensitive for observing
Whether resistance M1, varistor M2, varistor M3 fail at work.
The gas-discharge tube LT is LT-B8G600L type gas-discharge tube.
The thunder-and-lightning counter is HOH-JSO type thunder-and-lightning counter.
The time relay J1 is GRT8-A1B1 ~ 220v type time relay.
The A.C. contactor J2 is NCH8-63/20 220V/ 63A type A.C. contactor.
The GSM alarm connects the mobile phone of service personnel by mobile network.
A kind of electric power networks information machine room apparatus for protecting power supply of the utility model, technical effect are as follows:
1: according to the comprehensive analysis to failure cause, utility model device designs a kind of triple protection function: first is that having
Anti-surging, lightning protection function；Second is that under-voltage/over-voltage protection function；Third is that delay protection function after incoming call.
2: the use of delay protection function after incoming call mainly considers that the low-pressure side of whether transformer induces moment
Surge voltage；Or in power grid the rush of current of " invisible capacitor " be all after incoming call, it is extremely short to generate in a flash, pass through
After installing delay function additional, injury of the both of these case to the network switch can be effectively inhibited；In addition to frequent have a power failure after, again
The case where sending a telegram here again also plays fabulous protective effect.
3: by the way that utility model device to be mounted in network information computer room, when trial operation is more one year so far
Between, then not occurring the generation of the case where interchanger damage, utility model device itself is also without failure, plays protection network
The important function of information machine room power supply has good application value.
Detailed description of the invention
Fig. 1 is the circuit diagram of utility model device.
Specific embodiment
As shown in Figure 1, a kind of electric power networks information machine room apparatus for protecting power supply, the device include:
The anti-surge circuit being made of varistor M1, varistor M2, varistor M3, gas-discharge tube LT；
The delay protection circuit being made of time relay J1, A.C. contactor J2.
The end L of AC AC power source connects the one end varistor M1, and the varistor M1 other end is separately connected varistor
The one end M3, AC AC power source N-terminal, the varistor M3 other end connect gas-discharge tube LT upper end, gas-discharge tube LT
Lower end connect ground terminal PE；The end L of AC AC power source connects the one end varistor M2, and the varistor M2 other end connects gas
The upper end of body discharge tube LT；
AC AC power source Connection Time relay J1 after anti-surge circuit, time relay J1 connection A.C. contactor
J2, A.C. contactor J2 connection self-recovering type overvoltage/undervoltage module M4, the time relay J1 connection GSM alarm；
Self-recovering type overvoltage/undervoltage module M4 for AC AC power source is sampled and is handled, output AC power source to network machine
Room electrical equipment.
The lower end of the gas-discharge tube LT is mounted with that thunder-and-lightning counter, the thunder-and-lightning counter are separately connected AC alternating current
The end L in source, N-terminal.
The power output end of the device is mounted with voltmeter V and ammeter A.
The device include three pieces be struck by lightning after lose the Anti-surging module NU6-II40/38 of valid flag, it is pressure-sensitive for observing
Whether resistance M1, varistor M2, varistor M3 fail at work.
The gas-discharge tube LT is LT-B8G600L type gas-discharge tube.
The thunder-and-lightning counter is HOH-JSO type thunder-and-lightning counter.
The time relay J1 is GRT8-A1B1 ~ 220v type time relay.
The A.C. contactor J2 is NCH8-63/20 220V/ 63A type A.C. contactor.
The GSM alarm connects the mobile phone of service personnel by mobile network.
As can be known from Fig. 1, AC AC power source first pass around by varistor M1, varistor M2, varistor M3,
Gas-discharge tube LT composition anti-surge circuit, wherein varistor M2, varistor M3 respectively with LT-B8G600L type gas
Body discharge tube is used in series.Whether fail at work for the ease of observation varistor, which has selected three pieces to be struck by lightning
The Anti-surging module NU6-II40/38 of valid flag is lost afterwards, is acted on as varistor.Varistor and ceramic gas discharge
Pipe is used in series, and when normal work, ceramic gas discharge tube is not turned on, and varistor does not have leakage current, and can greatly prolong makes
Use the service life；When by surge impact, ceramic gas discharge tube punctures first, then limits surge voltage by varistor, and total is residual
Pressure is sum of the two, slightly increase (tens volts)；After the impact past, since varistor limits electric current, ceramic gas discharge
Pipe cannot maintain to be connected and blow-out, revert to normal operating conditions.After varistor short-circuit failure, because of ceramic gas discharge tube
Flowing through very big power current can also be quickly invalidated, but its failure mode overwhelming majority is open circuit, thus be not easy to cause fire,
Varistor is cooperating the used time with ceramic gas discharge tube in this way, can reduce output residual voltage, improve through-current capability, can extend itself
Service life；For the ease of observation lightning stroke situation, and design is mounted with thunder-and-lightning counter (HOH-J in the lower end of gas-discharge tube LT
SO sensing device).
After lightning protection circuit, AC AC power source be connected to by GRT8-A1B1 ~ 220v type time relay J1 and
The delay protection circuit of NCH8-63/20 220V/ 63A type A.C. contactor J2 composition.
In the case where anti-surge circuit does not have surge impact, end " A1 " of the line packet of time relay J1, " A2 " hold band
The delay time of time relay J1 is adjusted to ten seconds, back contact movement in ten seconds by electricity in advance；Its " a " contact " b " contact
Switch is attracted；AC~220V voltage is sent from " S " contact, " A2 " contact to " A1 " of A.C. contactor J2, " A2 " line packet
It holds, then the contact " 1 " of A.C. contactor J2-contact " 3 "；Contact " 2 "-contact " 4 " is attracted, by AC AC power source send to
Next stage.
The contact " 15 " of the another set of time relay J1-contact " 18 " is attracted, and at this time arrives the setting of GSM alarm
Pre-alarm state (locking), after alternating current power loss, contact " 15 "-contact " 18 " is disconnected, and switching information is sent to GSM alarm
Triggering end, GSM alarm by mobile network to service personnel's mobile phone issue alternating current power loss information, greatly facilitate inspection
The personnel of repairing can understand power information and rapidly tissue maintenance in time.
After A.C. contactor J2 movement, contact " 1 "-contact " 3 " of A.C. contactor J2；Contact " 2 "-contact
" 4 " are attracted；Power supply is sent to self-recovering type overvoltage/undervoltage module M4.Self-recovering type overvoltage/undervoltage module M4 model: OUVR-11P+N/
63A.When supply voltage is unstable too high or too low, due to having high performance chips in self-recovering type overvoltage/undervoltage module M4, by pair
After the sampling of AC AC power source and integrated treatment, contact " 1 "-contact " 2 " could be acted.Over-voltage movement cutoff value: 270V ±
5V；Low-voltage cutoff value: 170V ± 5V；Over-voltage recovery value: 240~260V；Under-voltage recovery value: 185~195V.?
That is contact " 1 "-contact " 2 " is conducting when alternating current is in 185~260V of its normal voltage range；Work as exchange
Electricity is being lower than 170V ± 5V；Or when being higher than 270V ± 5V, contact " 1 "-contact " 2 " is to disconnect；Thus effectively
It protects network information computer room to join equipment, has achieved the purpose that the third level protects.
In addition, whether in order to help service personnel to judge failure and understand loaded work piece situation normally, it is practical new at this
The power output end of type device is mounted with voltmeter V and ammeter A.
Claims (10)
1. a kind of electric power networks information machine room apparatus for protecting power supply, it is characterised in that the device includes:
The anti-surge circuit being made of varistor M1, varistor M2, varistor M3, gas-discharge tube LT；
The delay protection circuit being made of time relay J1, A.C. contactor J2；
The end L of AC AC power source connects the one end varistor M1, and the varistor M1 other end is separately connected varistor M3 mono-
It holds, the N-terminal of AC AC power source, the varistor M3 other end connects the upper end of gas-discharge tube LT, the lower end of gas-discharge tube LT
Connect ground terminal PE；The end L of AC AC power source connects the one end varistor M2, and the varistor M2 other end connects gas discharge
The upper end of pipe LT；
AC AC power source Connection Time relay J1 after anti-surge circuit, time relay J1 connection A.C. contactor J2,
A.C. contactor J2 connection self-recovering type overvoltage/undervoltage module M4, the time relay J1 connection GSM alarm；
Self-recovering type overvoltage/undervoltage module M4 is for sampling AC AC power source and handling, output AC power source to network computer room is used
Electric equipment.
2. a kind of electric power networks information machine room apparatus for protecting power supply according to claim 1, it is characterised in that: the gas is put
The lower end of fulgurite LT is mounted with that thunder-and-lightning counter, the thunder-and-lightning counter are separately connected the end L of AC AC power source, N-terminal.
3. a kind of electric power networks information machine room apparatus for protecting power supply according to claim 1, it is characterised in that: the electricity of the device
Source output terminal is mounted with voltmeter V and ammeter A.
4. a kind of electric power networks information machine room apparatus for protecting power supply according to claim 1, it is characterised in that: the device includes
Three pieces be struck by lightning after lose the Anti-surging module NU6-II40/38 of valid flag, for observing varistor M1, varistor M
2, whether varistor M3 fails at work.
5. a kind of electric power networks information machine room apparatus for protecting power supply according to claim 1, it is characterised in that: the gas is put
Fulgurite LT is LT-B8G600L type gas-discharge tube.
6. a kind of electric power networks information machine room apparatus for protecting power supply according to claim 2, it is characterised in that: the ceraunograph
Number device is HOH-JSO type thunder-and-lightning counter.
7. a kind of electric power networks information machine room apparatus for protecting power supply according to claim 1, it is characterised in that: the time after
Electric appliance J1 is GRT8-A1B1 ~ 220v type time relay.
8. a kind of electric power networks information machine room apparatus for protecting power supply according to claim 1, it is characterised in that: the exchange connects
Tentaculum J2 is NCH8-63/20 220V/ 63A type A.C. contactor.
9. a kind of electric power networks information machine room apparatus for protecting power supply according to claim 1, it is characterised in that: the GSM report
Alert device connects the mobile phone of service personnel by mobile network.
10. a kind of electric power networks information machine room apparatus for protecting power supply according to claim 1, it is characterised in that: the recovery
Formula overvoltage/undervoltage module M4 is OUVR-11P+N/63A pattern block；
The module over-voltage acts cutoff value: 270V ± 5V；Low-voltage cutoff value: 170V ± 5V；Over-voltage recovery value: 240
~260V；Under-voltage recovery value: 185~195V；
That is: when alternating current is in 185~260V of its normal voltage range, contact " 1 "-contact " 2 " is conducting；Work as exchange
Electricity is being lower than 170V ± 5V；Or when being higher than 270V ± 5V, contact " 1 "-contact " 2 " is to disconnect.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821104825.8U CN208423781U (en) | 2018-07-12 | 2018-07-12 | A kind of electric power networks information machine room apparatus for protecting power supply |
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| CN201821104825.8U CN208423781U (en) | 2018-07-12 | 2018-07-12 | A kind of electric power networks information machine room apparatus for protecting power supply |
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| CN208423781U true CN208423781U (en) | 2019-01-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736457A (en) * | 2018-07-12 | 2018-11-02 | 国网湖北省电力有限公司孝感供电公司 | A kind of electric power networks information machine room apparatus for protecting power supply |
-
2018
- 2018-07-12 CN CN201821104825.8U patent/CN208423781U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736457A (en) * | 2018-07-12 | 2018-11-02 | 国网湖北省电力有限公司孝感供电公司 | A kind of electric power networks information machine room apparatus for protecting power supply |
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