1 Device Status Definitions 1.1 Primary Device Status 1.1.1 Operating Status: This refers to the condition where the knife and switch of the equipment (excluding lines with series compensation devices) are closed, and the power supply to the receiving end is fully connected, including auxiliary equipment like PTs and surge arresters. For a line with a series compensation device, if the line knife gate is closed or the series compensation device is in operation, it follows the same logic as above. When the series compensation device is operating, the bypass switch should be open, and the knife switches on both sides of the series compensation should be closed while the grounding knife is open. 1.1.2 Hot Standby: This is when the device is disconnected, but the knife gate remains closed. In this state, the protection system should typically be active unless otherwise specified. For lines with series compensation devices, the line knife gate must remain closed or the series compensation device should be in operation. If a high-impedance reactor is connected, the low-voltage side of the reactor should be disconnected during hot standby. Devices without high-impedance, PTs, or separate switches do not have a hot standby state. The series compensation device in hot standby requires the bypass switch to be closed, the knife switches on both sides of the series compensation to be closed, and the grounding knife to be open. 1.1.3 Cold Standby: This means there are no safety measures in place on any side of the device, and each side has an obvious disconnection point or a clear break. For a line in cold standby, the knife gates on both ends should be open. The series compensation device in cold standby should have the bypass switch closed, the knife switch on the series side open, and the grounding knife open. 1.1.4 Maintenance (Overhaul) Status: This occurs when all switches and knife gates are open, and the protective grounding wire or grounding knife is closed, along with a work card being hung and temporary barriers installed. For a series compensation device in maintenance, the bypass switch should be closed, the knife gate opened, and the grounding knife closed. 1.2 Secondary Device Status 1.2.1 Operational Status: The device is powered on, and the outlet connection piece is engaged in the command loop. 1.2.2 Hot Standby (Signal) Status: The device is powered on, but the outlet connection piece is disconnected. 1.2.3 Cold Standby (Deactivated) Status: The device’s working power is removed, and the outlet connection piece is disconnected. 1.2.4 Maintenance Status: The device is completely isolated from the system and has no physical connection to the operating network.
2 Operating Terms and Definitions 2.1 Charging: Refers to the device having its nominal voltage applied but no load. 2.2 Power Transmission: Charging the equipment with a load, meaning it is put into ring operation or under load. 2.3 Power Failure: Disconnecting the switch and knife gate to make the equipment unpowered. 2.4 X-Time Shock Closing: Closing the switch X times, charging the equipment with rated voltage continuously for X times. 2.5 Zero Boost: Gradually increasing the voltage from zero to a predetermined value or up to the rated voltage to ensure the device is fault-free. 2.6 Zero Rise Current: Gradually increasing the current from zero to a predetermined value or until the rated current is reached. 2.7 Phase Checking: Using instruments or other methods to verify whether two power sources or loops have the same phase. 2.8 Phase Determination: Checking before commissioning new or rebuilt lines or power plants/substations to ensure the three-phase signs match the operating system. 2.9 Phase Sequence Check: Using a meter or other tools to confirm that the phase sequence of two power sources is the same. 2.10 Correct Phase: Ensuring that phases A, B, and C on both sides of a switch correspond correctly. 2.11 Parallel: Connecting a generator or grid to another grid with the same phase sequence, frequency, and voltage. 2.12 Disconnection: Disconnecting a circuit breaker manually or through protection and automatic devices, isolating the generator from the grid or dividing the grid into multiple parts. 2.13 Ring Switch: A switch or knife switch used to change the network to a loop operation. 2.14 Synchronization and Loop Detection: Ensuring that the timing is consistent and the loop is properly detected. 2.15 Direct Loop Closure Without Synchronization Lockout: Closing the loop directly without synchronization lockout. 2.16 Unlooping: Changing a loop-operated grid into an acyclic operation. 2.17 Reverse Load: Transferring the load of a line or transformer to another line or transformer. 2.18 Busbar Transfer: Switching some or all of the lines and transformers from one busbar group to another or into hot standby. 2.19 Bypass Operation: Replacing the operation of other circuit breakers with a bypass breaker. 2.20 Dispatch Consent: The shift dispatcher agrees to the job application and requirements submitted by the operator. 2.21 Scheduling Permission: If the equipment is under the jurisdiction of a lower-level dispatch, the duty dispatcher must report to the higher-level dispatcher and obtain permission before operating the equipment. 2.22 Permitted Operation: Before changing the state or mode of electrical equipment, relevant personnel must propose the operation items, and the duty dispatcher must approve them. 2.23 Frequency and Voltage Regulation During System Split: During the period of system split, the factory is responsible for frequency and voltage regulation. The regional power grid and main network operate separately, and the dispatch agency temporarily designates a factory for frequency regulation. 2.24 Frequency and Voltage Monitoring During System Split: During the system split, the bureau is responsible for monitoring and adjusting frequency and voltage. When the regional power grid and main network are separated, the dispatch agency designated by the superior dispatching agency temporarily takes charge of frequency and voltage regulation.
3 Commonly Used Step-by-Step Operation Instructions 3.1 Switch and Knife Gate Operations 3.1.1 Open (Close) the XX switch of the XX device or line. 3.1.2 Open (Close) the XX knife gate of the XX device or line. 3.2 Phase Checking 3.2.1 Phase checking between the XX kV XX PT and XX kV XX PT. 3.2.2 Phase checking on both sides of the XX device or line using a phase checker. 3.3 Opening and Closing 3.3.1 Open the XX switch of the XX device or line. 3.3.2 Close the XX device or line for parallel operation. 3.4 Unlooping and Closing 3.4.1 Open the XX switch (or knife gate) of the XX device or line. 3.4.2 Close the XX switch (or knife gate) of the XX device or line. 3.5 Protection Input/Exit and Tripping 3.5.1 Input (Exit) trip for the XX protection of the XX device. 3.5.2 Input (Exit) trip for the XX protection of the XX line. 3.6 Input, Exit, and Jump 3.6.1 Input (Exit) the XX device jump plate of the XX switch. 3.7 Investing or Withdrawing a Device Jump Plate 3.7.1 Input (Exit) the jump plate of the XX device on the XX switch. 3.8 Protection Change 3.8.1 Change the XX protection of the XX switch to the XX device. 3.8.2 Change the XX protection of the XX switch to the switch itself. 3.9 Protection Signal Change 3.9.1 Change the trip (signal) signal of the XX protection of the XX switch. 3.9.2 Change the trip (signal) signal of the XX protection of the XX device. 3.10 Reclosing Input/Exit 3.10.1 Enable (Disable) the reclosing of the XX switch on the XX line. 3.11 Power Transmission After Tripping 3.11.1 Test the XX line once using the XX switch. 3.11.2 Send power to the XX line once using the XX switch. 3.12 Impact on New Lines or Transformers 3.12.1 Impact the XX line or transformer X times using the XX switch. 3.13 Transformer Tap Change 3.13.1 Change the tap of the X-type transformer (high or medium voltage side) from X (or XX kV X) to X (or XX kV). 3.14 AGC Control Input/Exit for Units (Power Plants) 3.14.1 Enable (Disable) AGC control for the XX unit or power plant.
4 Commonly Used Comprehensive Operation Instructions and Basic Steps 4.1 Change the XX device from overhaul to cold standby 4.1.1 Remove the ground wires on all sides of the XX device and open the grounding switch (excluding the neutral point switch). 4.1.2 Confirm that there are no safety measures on all sides of the equipment, and each side has an obvious disconnect point. 4.2 Change the XX device from cold standby to overhaul 4.2.1 Close the grounding switch or connect the grounding wire. 4.3 Change the XX switch from cold standby to hot standby 4.3.1 Close the switches on both sides of the XX switch. 4.3.2 If no special instructions are given, the protection should be in operation. 4.4 Change the XX switch from hot standby to operational status 4.4.1 Close the XX switch of the XX device. 4.5 Change the XX switch from operational status to hot standby 4.5.1 Open the XX switch of the XX device. 4.6 Change the XX switch from hot standby to cold standby 4.6.1 Open the knife gates on both sides of the switch. 4.6.2 If no special instructions are given, the protection should be deactivated. 4.7 Change the XX kV X busbar from cold standby to hot standby 4.7.1 For double busbar or single busbar with segmentation, close the knife gates on both sides of the busbar switch. If the PT on the busbar is not under inspection and is operational, close the PT knife gate. 4.7.2 For single busbar or half-switch configuration, close the switches of all components except those under maintenance. 4.8 Change the XX kV bypass busbar from cold standby to hot standby 4.8.1 Close the knife gates on both sides of the XX kV bypass switch. 4.8.2 If the PT on the bypass busbar is not under inspection and is operational, close the PT knife gate. 4.9 Change the XX kV busbar from hot standby to operational status 4.9.1 For double busbar or single busbar with segmentation, disable the busbar protection and enable the busbar switch charging protection. Close the busbar switch to charge the busbar. After successful charging, disable the charging protection and re-enable the busbar protection. 4.9.2 For single busbar or half-switch configuration, enable the busbar protection, select an appropriate fully-charged switch, and close it to charge the busbar. After successful charging, allow other switches on the busbar to be closed. 4.10 Change the XX kV busbar configuration to normal mode 4.10.1 Remove the operation insurance of the corresponding busbar switch and adjust the mother frequency accordingly. 4.10.2 Move all switches on the busbar that do not meet the dispatch requirements to the specified busbar. When reversing the busbar, pull back the busbar switch first. 4.10.3 After completing the busbar reversal, replace the operation insurance of the busbar switch and adjust the mother frequency accordingly. 4.11 Change the XX switch from the XX kV X bus to the Y bus 4.11.1 Remove the operation insurance of the corresponding busbar switch and adjust the mother frequency accordingly. 4.11.2 Move the XX switch of the XX device from the XX kV X bus to the Y bus. When reversing the busbar, pull back the busbar switch first. 4.11.3 After completing the busbar reversal, replace the operation insurance of the upper busbar switch and adjust the mother frequency accordingly. 4.12 Change the XX kV X busbar from operational to hot standby 4.12.1 Open all running switches on the busbar. 4.13 Change the XX kV X busbar from hot standby to cold standby 4.13.1 Open the knife gates of all components on the busbar. 4.14 Change the XX kV bypass busbar from hot standby to cold standby 4.14.1 Open the knife gates on both sides of the XX kV bypass switch. 4.15 Move all switches of the XX kV X bus to the Y bus, and repair the XX kV X bus 4.15.1 Remove the operation insurance of the corresponding busbar switch and adjust the mother frequency accordingly. 4.15.2 Move all running and standby switches of the XX kV X bus to the Y bus. When reversing the busbar, pull back the busbar switch first. 4.15.3 After completing the busbar reversal, replace the operation insurance of the upper busbar switch and adjust the mother frequency accordingly. 4.15.4 Keep the XX kV X bus in hot standby for operation. 4.15.5 Change the XX kV X bus from hot standby to cold standby. 4.15.6 Repair the XX kV X bus in cold standby.
4.16 Change the Xth transformer from cold standby to hot standby 4.16.1 Select the appropriate charging side and close the switches on both sides of the Xth transformer. If the transformer is allowed to be charged on all sides, close the switches on all sides to bring it to hot standby. 4.16.2 Close the neutral point switch of the transformer. 4.16.3 If no special instructions are given, the transformer protection should be in operation. 4.17 Change the Xth transformer from hot standby to operational status 4.17.1 Verify that the transformer protection is in operation and the neutral point is closed. If necessary, compress the backup protection time limit. 4.17.2 Select the appropriate charging side and close the transformer switch to charge the transformer. 4.17.3 Restore the normal operating state of the transformer (including the neutral operating mode). 4.18 Change the Xth transformer from operational to hot standby 4.18.1 Open the switches on both sides of the transformer, usually starting with the load side, then the power side. 4.19 Change the Xth transformer from hot standby to cold standby 4.19.1 Open the switches on both sides of the transformer. 4.19.2 If no special instructions are given, the transformer protection should be deactivated. 4.20 Change the XX device from overhaul to hot standby 4.20.1 Change the XX device from overhaul to cold standby. 4.20.2 Change the XX device from cold standby to hot standby. 4.21 Change the XX device from overhaul to operational status 4.21.1 Change the XX device from overhaul to cold standby. 4.21.2 Change the XX device from cold standby to hot standby. 4.21.3 Change the XX device from hot standby to operational status. 4.22 Change the XX device from operational to overhaul 4.22.1 Change the XX device from operational to hot standby. 4.22.2 Change the XX device from hot standby to cold standby. 4.22.3 Change the XX device from cold standby to overhaul. 4.23 Change the XX device from operational to cold standby 4.23.1 Change the XX device from operational to hot standby. 4.23.2 Change the XX device from hot standby to cold standby. 4.24 Operate the XX kV X bus PT for maintenance 4.24.1 Transfer the PT load, remove the secondary fuse or open the secondary switch. 4.24.2 Open the PT knife gate. 4.24.3 Hang the ground wire on the PT (or close the grounding knife). 4.25 Operate the XX kV X bus PT for overhaul 4.25.1 Remove the ground wire of the PT (or open the grounding knife). 4.25.2 Close the PT knife gate. 4.25.3 Restore the PT load by closing the secondary fuse or secondary switch. 4.26 Change the XX kV bypass switch from hot standby to XX (line name) XX switch operation, and repair the XX (line name) XX switch 4.26.1 Adjust the bypass switch protection settings to match the XX (line name) XX switch and activate it. 4.26.2 Close the bypass switch to charge the bypass bus. 4.26.3 After normal charging, open the bypass switch from hot standby. 4.26.4 Close the bypass switch of the XX (line name) XX switch to charge the bypass bus. 4.26.5 Disable the protection of the zero-sequence II, III, and IV segments of the bypass switch and the XX (line name) XX switch. 4.26.6 Check the closing loop and three-phase current balance simultaneously. 4.26.7 Open the XX (line name) XX switch. 4.26.8 Reactivate the protection of the zero-sequence II, III, and IV segments of the bypass switch and the XX (line name) XX switch. 4.26.9 Change the XX (line name) XX switch from hot standby to overhaul. 4.27 Operate the XX (line name) XX switch for inspection, and change the XX kV bypass switch from XX (line name) XX switch operation to hot standby 4.27.1 Change the XX (line name) XX switch from overhaul to hot standby. 4.27.2 Disable the protection of the zero-sequence II, III, and IV segments of the bypass switch and the XX (line name) XX switch. 4.27.3 Check the closing loop and three-phase current balance of the XX (line name) XX switch. 4.27.4 Open the bypass switch from hot standby. 4.27.5 Reactivate the protection of the zero-sequence II, III, and IV segments of the bypass switch and the XX (line name) XX switch. 4.27.6 Open the bypass switch of the XX (line name) XX switch. 4.28 Change the XX kV bypass switch from hot standby to XX (line name) XX lock switch operation, and repair the XX (line name) XX lock switch 4.28.1 Adjust the bypass switch protection settings to match the XX (line name) XX switch and activate it. 4.28.2 Close the bypass switch to charge the bypass bus. 4.28.3 After normal charging, open the bypass switch from hot standby. 4.28.4 Close the XX (line name) XX switch bypass switch to charge the bypass bus. 4.28.5 Disable the protection of the zero-sequence II, III, and IV segments of the bypass switch and the XX (line name) XX switch. 4.28.6 Check the closing loop and three-phase current balance at the same time. 4.28.7 Remove the operation insurance of the bypass switch and the XX (line name) XX switch. 4.28.8 Open the knife gates on both sides of the XX (line name) XX switch. 4.28.9 Apply the operation insurance to the bypass switch and the XX (line name) XX switch. 4.28.10 Reactivate the protection of the zero-sequence II, III, and IV segments of the bypass switch and the XX (line name) XX switch. 4.28.11 Change the XX (line name) XX switch to overhaul.
Right Angle D-sub Connector IP66 IP67 Rated
IP66 / IP67 waterproof d-sub connectors-Designed for IP Performance
ANTENK has developed IP66 / IP67 waterproof d-sub connectors that utilize a proprietary sealing technology, which maintains the same physical size and footprint as standard d-sub products.
Antenk's line of Waterproof d-sub connectors utilize an innovative sealing technology eliminating the need to redesign enclosures and PC boards when implementing IP67 design upgrades.These connectors are designed for applications that require protection from heavy spray or are exposed to short-term submersion. Connectors are available in vertical and right angle board mount types as well as solder cup for panel mount cable applications. Standard D-Subs are available in 9 pin, 15 pin, and 25 pin positions, and high density D-Subs are available in 15 pin, 26 pin, and 44 pin positions
Applications of Antenk waterproof d-sub connectors:
Hand held computers, scanners, and printers that are used outdoors
Remote sensors, gauges, and data loggers that are used outdoors
Industrial and Medical equipment that is routinely subject to wash down
Transmitters and emergency beacons that are subject to temporary submersion
Gas, Electric, and Water metering systems that have embedded Smart Grid electronics
Portable electric generation equipment (Gen Sets)
Consumer and Commercial boating electronics (Radios, Scanners, Radar, DC Power Ports)
IP67 D-SUB | WATERPROOF CONNECTORS FEATURES & BENEFITS
Signal / Low Power in 6 standard size
(Standard: 9 pin, 15 pin, 25 pin; High Density: 15 pin, 26 pin,44 pin)
Combo-D / High Power in a variety of configurations:
(3W3, 5W5, 7W2, 9W4, 11W1, 13W3, 13W6, 17W2, 21W1, 21WA4)
Solder Cup, Vertical Mount & Right Angle Board Mount Options
High Reliability Screw Machined Contacts
3 amp / 5 amp / 20 amp / 40 amp Power Options
-65°C to +105°C Operating Temperature Range
Right Angle D-SUB Connector IP66 IP67 Rated available in
3 industry sizes/positions:Standard Density (9 pin, 15 pin, 25 pin).
Male & Female Versions
Right Angle D-sub Connector IP66 IP67 Materials
Shell: Steel with Nickel Plating.
Insulator: Glass-filled thermoplastic. U.L. rated 94V-O
(260° process temp for board applications)
Machined Contacts:
Male Pins - Brass
Plating: Gold Flash on entire contact.
IP67 Right Angle D-Sub Seal: Proprietary Information
Right Angle D-Sub IP67 Rated,Right Angle D-Sub Waterproof,Standard Density Waterproof Right Angle D-Sub Connector, High Density Waterproof Right Angle D-Sub Connector
ShenZhen Antenk Electronics Co,Ltd , https://www.antenk.com