Electrical equipment switching operation regulations - Solutions - Huaqiang Electronic Network

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

100V, 250mA, surface mount, high speed switching diode

TP-IP4220CZ6 5V 0.35PF breakdown voltage 6V SOT

(1) The switching operation must be carried out according to the order of the shift dispatcher or the person in charge of the electric duty.
(2), the order should be accurate and clear, using the formal operating term and device dual name, that is, the device name and number.
(3) Before sending a call to use the telephone, you should record and record the entire process of the name, release and listening to the order.
(4) The operation of the switching operation is completed by the operator.
(5), single-person duty, the operation ticket is sent by the caller to the attendant, the attendant should fill in the operation ticket according to the communication, re-incorrect, and fill in the name of the person in the signature of the guardian.
(6), each operation ticket can only fill one operation task.
(7) The switching operation must be carried out by two people. One of them is responsible for the monitoring of the equipment. It is executed after being rehabilitated. The switching operation of the single-substitute substation can be carried out by one person.
(8) Before starting the operation, the verification operation should be performed on the operation analog board according to the order of the operation ticket. (preview)
(9) Before operation, check the name, number and position of the equipment, and check whether the on/off position of the circuit breaker, disconnector, automatic switch and knife switch is consistent with the work ticket.
(10) In operation, the re-examination system and the custody system should be carefully implemented. The release operation command and the re-operation operation command should be serious and serious. The sound should be loud and clear, and must be operated item by item in the order in which the operation ticket is filled. After the guardian has checked it, he will call "√" before the operation of the ticket item; check it again after all the operations are completed.
(11) If there is any doubt during operation, stop the operation immediately and report to the shift dispatcher or the electrical person in charge. After clearing the problem, proceed with the operation and do not allow the operation ticket to be changed without authorization.
(12) Operators and live conductors should maintain a sufficient safety distance and wear long-sleeved clothes and trousers.
(13) Insulating gloves should be worn when using insulated rods, high-voltage isolating switches and drop-type switches or pulling and closing high-voltage circuit breakers and high-voltage isolating switches through transmission mechanisms; when operating outdoor equipment, insulated boots should also be worn. Switching is prohibited during lightning.
(14) When loading and unloading the high-voltage fuse tube, if necessary, use insulated clamps or insulating rods, and wear goggles and insulating gloves, and stand on the insulating mat (stage).
(15) When operating outdoor high-voltage equipment on rainy days, the insulation rods should be equipped with a rain cover and insulated boots.
(16) The shifting staff of the power station (room) should be familiar with the division of the scope of electrical equipment dispatching; all equipment dispatched by the power supply bureau should be operated according to the dispatcher's operating commands.
(17) It is strictly forbidden to turn off the parallel power supply for the dual power supply (including self-generation) dispatched by the power supply bureau. (When the switch is turned off, the common power supply should be stopped first.) Check and confirm the open position, and then send the backup power supply.
(18) In the event of a personal electric shock, the power of the equipment may be disconnected without permission, but the superior must be reported immediately afterwards. The technical requirements for the switching operation (1) and the power-off and pull-out operation must be carried out in the order of “circuit breaker (switch) line side disconnector (knife gate)”. The power-on and closing operation shall be carried out in the reverse order of the above, and it is strictly forbidden to carry the load.
(2) The operation sequence of the switch on both sides (or three sides) of the transformer is as follows: When the power is off - first pull the load side switch, then pull the power side switch, when the power is transmitted - the order is reversed. (ie, the power cannot be cut off with a load).
(3) The operation sequence of the single-pole isolating switch and the drop-off switch is as follows: when the power is off--first pull the middle phase, then pull the two-phase phase, and when the power is transmitted--the order is reversed.
(4) For the substation with double-circuit busbar power supply, when the outlet switch is switched from one busbar to another, the power supply side load switch of the busbar to be switched should be disconnected first, and then the busbar communication switch should be connected.
(5) In operation, care should be taken to prevent high voltage from being returned twice by the voltage transformer.
(6) When using high-voltage isolating switch and drop switch to pull and close electrical equipment, it should be operated according to the operating range determined by the product manual and test data. When there is no data, refer to the following regulations (refer to the operation of the system under normal operation):
A. It can divide and combine voltage transformers and lightning arresters.
B. It can divide and combine the bus charging current and the bypass current of the switch.
C. It can divide and match the direct grounding point of the neutral point of the transformer.
D, 10KV outdoor three-pole, single-pole high-voltage isolating switch and drop switch, the capacity of the no-load transformer that can be divided and combined is not more than 560KVA; the length of the no-load overhead line that can be divided and combined is not more than 10KM.
E, 10KV indoor three-pole isolating switch can divide and combine the capacity of the no-load transformer is not more than 320KVA; the length of the no-load overhead line that can be divided and combined is not more than 5KM.
The provisions of F, sub-combination and air-to-air cable lines can be found in the relevant regulations.
G. When using electromagnetic operating mechanism and high voltage circuit breaker, observe the change of DC current meter. After closing, the current meter should return. When continuously operating high voltage circuit breaker, observe the change of DC bus voltage.